Howard Schematics, Service
manual or circuit diagram £1.80 (~ $2.20 or €2.10)

Click on a blue link in the search results for a bigger image and to order your Howard schematic

432 Howard models listed

Model Click to Order!	Year	Book/ Source	File	Type/ Volume	Page/ Ext
Howard 1 Permatic Tuner	1939	Rider	Rider 10	Howard Radio	16
Howard 10T	1933	Rider	Rider 2	Howard Radio	10
Howard 118	1936	Gernsback	Gernsback 7	Radio	382
Howard 118	1937	Rider	Rider 8	Howard Radio	7
Howard 12B	1940	Rider	Rider 11	Howard Radio	1
Howard 135 ;AC	1933	Rider	Rider 1	Howard Radio	8
Howard 135 ;DC	1933	Rider	Rider 2	Howard Radio	2
Howard 135	1931	Gernsback	Gernsback 2	Radio	264
Howard 14 ABC	1940	Rider	Rider 11	Howard Radio	2
Howard 14 ABC	1942	Rider	Rider 13	Howard Radio	22
Howard 14A CB	1941	Beitman	Beitman 1941	-	58
Howard 1626	1935	Gernsback	Gernsback 6	Radio	575
Howard 1626	1937	Rider	Rider 8	Howard Radio	14
Howard 19 Tube All Wave DeLuxe	1934	Gernsback	Gernsback 5	Radio	415
Howard 2 Peramatic Tuner	1939	Rider	Rider 10	Howard Radio	16
Howard 2 Permamatic Tuner	1939	Rider	Rider 10	Howard Radio	16
Howard 20	1933	Rider	Rider 2	Howard Radio	8 13
Howard 200	1938	Rider	Rider 9	Howard Radio	26
Howard 210	1939	Rider	Rider 10	Howard Radio	5 7
Howard 210A	1940	Rider	Rider 11	Howard Radio	7
Howard 211	1939	Rider	Rider 10	Howard Radio	6
Howard 214	1936	Gernsback	Gernsback 7	Radio	1584
Howard 214	1937	Rider	Rider 8	Howard Radio	11
Howard 218	1936	Gernsback	Gernsback 7	Radio	382
Howard 218	1937	Rider	Rider 8	Howard Radio	7
Howard 220	1939	File	Howard-220_270-1939.Rider.Radio	Radio	pdf
Howard 220	1939	Rider	Rider 10	Howard Radio	7
Howard 221	1939	Rider	Rider 10	Howard Radio	7 10
Howard 225	1938	Rider	Rider 9	Howard Radio	9 13
Howard 225	1939	Beitman	Beitman 1939	-	59
Howard 240	1939	Beitman	Beitman 1939	-	60
Howard 2401	1938	Rider	Rider 9	Howard Radio	7 18
Howard 2402	1938	Rider	Rider 9	Howard Radio	7 18
Howard 25	1933	Rider	Rider 2	Howard Radio	8 13
Howard 250	1938	Rider	Rider 9	Howard Radio	9 13
Howard 250	1939	Beitman	Beitman 1939	-	59
Howard 256 ;Series 1	1936	Gernsback	Gernsback 7	Radio	1585
Howard 256	1937	Rider	Rider 8	Howard Radio	2 10
Howard 259 ;Series 1	1936	Gernsback	Gernsback 7	Radio	1585
Howard 259	1937	Rider	Rider 8	Howard Radio	2 13
Howard 260	1938	Rider	Rider 9	Howard Radio	10 13
Howard 260	1939	Beitman	Beitman 1939	-	59
Howard 266	1936	Gernsback	Gernsback 7	Radio	1586
Howard 266	1937	Rider	Rider 8	Howard Radio	4 6
Howard 268	1936	Gernsback	Gernsback 7	Radio	1587
Howard 268	1937	Rider	Rider 8	Howard Radio	1 4 6
Howard 270	1939	File	Howard-220_270-1939.Rider.Radio	Radio	pdf
Howard 270	1939	Rider	Rider 10	Howard Radio	7
Howard 271	1939	Rider	Rider 10	Howard Radio	7 10
Howard 275	1939	Beitman	Beitman 1939	-	59
Howard 275C	1938	Rider	Rider 9	Howard Radio	11
Howard 275T	1938	Rider	Rider 9	Howard Radio	11
Howard 280	1938	Rider	Rider 9	Howard Radio	11
Howard 280	1939	Beitman	Beitman 1939	-	59
Howard 285	1939	Rider	Rider 10	Howard Radio	12
Howard 30	1933	Rider	Rider 2	Howard Radio	8 13
Howard 300	1940	Beitman	Beitman 1940	-	47
Howard 300	1940	Rider	Rider 11	Howard Radio	3 5
Howard 300A	1940	Rider	Rider 11	Howard Radio	4
Howard 301	1940	Rider	Rider 11	Howard Radio	4
Howard 301APC	1940	Rider	Rider 11	Howard Radio	4
Howard 302APC	1940	Rider	Rider 11	Howard Radio	5
Howard 302R	1940	Rider	Rider 11	Howard Radio	5 9
Howard 302RA	1940	Rider	Rider 11	Howard Radio	5 9
Howard 302RT	1940	Rider	Rider 11	Howard Radio	5 9
Howard 302S	1940	Rider	Rider 11	Howard Radio	5 8
Howard 303	1940	Rider	Rider 11	Howard Radio	4
Howard 304	1940	Rider	Rider 11	Howard Radio	4
Howard 305	1940	Rider	Rider 11	Howard Radio	5 11
Howard 306	1940	Beitman	Beitman 1940	-	48
Howard 306	1940	Rider	Rider 11	Howard Radio	5 12
Howard 307	1940	Rider	Rider 11	Howard Radio	5 13
Howard 307	1941	Rider	Rider 12	Howard Radio	7
Howard 3074	1944	Rider	Rider 14	Howard Radio	1
Howard 307TP	1941	Rider	Rider 12	Howard Radio	7
Howard 307TP2	1944	Rider	Rider 14	Howard Radio	1
Howard 308APC	1940	Rider	Rider 11	Howard Radio	5 14
Howard 308C	1940	Rider	Rider 11	Howard Radio	5 14
Howard 308TT	1940	Rider	Rider 11	Howard Radio	5 14
Howard 318	1936	Gernsback	Gernsback 7	Radio	1588
Howard 318	1938	Rider	Rider 9	Howard Radio	5
Howard 318D	1939	Rider	Rider 10	Howard Radio	14 20
Howard 32	1933	Rider	Rider 2	Howard Radio	8 13
Howard 325	1936	Gernsback	Gernsback 7	Radio	1588
Howard 325	1938	Rider	Rider 9	Howard Radio	15
Howard 325D	1939	Rider	Rider 10	Howard Radio	14 20
Howard 35	1933	Rider	Rider 2	Howard Radio	3
Howard 35	1933	Rider	Rider 3	Howard Radio	3
Howard 35A	1933	Rider	Rider 3	Howard Radio	11
Howard 368	1938	Rider	Rider 9	Howard Radio	15
Howard 375	1939	Rider	Rider 10	Howard Radio	14 20
Howard 377	1939	Rider	Rider 10	Howard Radio	15
Howard 395	1933	Rider	Rider 1	Howard Radio	8
Howard 40	1933	Rider	Rider 2	Howard Radio	3
Howard 40	1933	Rider	Rider 3	Howard Radio	3
Howard 400	1938	Rider	Rider 9	Howard Radio	19 21 24
Howard 400	1939	Beitman	Beitman 1939	-	61-62
Howard 400A	1938	Rider	Rider 9	Howard Radio	20
Howard 400K	1933	Rider	Rider 3	Howard Radio	8
Howard 400X	1939	Rider	Rider 10	Howard Radio	14
Howard 405	1935	Gernsback	Gernsback 6	Radio	566
Howard 409	1935	Gernsback	Gernsback 6	Radio	566
Howard 418	1939	Rider	Rider 10	Howard Radio	16 18 20
Howard 420L	1933	Rider	Rider 3	Howard Radio	5
Howard 425	1938	Rider	Rider 9	Howard Radio	19 21 24
Howard 425	1939	Beitman	Beitman 1939	-	61-62
Howard 425A	1938	Rider	Rider 9	Howard Radio	20
Howard 430	1939	Beitman	Beitman 1939	-	63
Howard 430	1941	Rider	Rider 12	Howard Radio	8
Howard 435	1941	File	Howard-435_436_437_660 ;Frequency Minitor-1941.Rider .Radio	Radio	pdf
Howard 435	1941	Rider	Rider 12	Howard Radio	10
Howard 436	1941	File	Howard-435_436_437_660 ;Frequency Minitor-1941.Rider .Radio	Radio	pdf
Howard 436	1941	Rider	Rider 12	Howard Radio	9 12
Howard 437	1941	File	Howard-435_436_437_660 ;Frequency Minitor-1941.Rider .Radio	Radio	pdf
Howard 437	1941	Rider	Rider 12	Howard Radio	9 12
Howard 438	1938	File	Howard-438-1938.Radio	Radio	jpg
Howard 438	1939	Rider	Rider 10	Howard Radio	22
Howard 440	1938	File	Howard-440-1938.Radio	Radio	pdf
Howard 440	1939	Rider	Rider 10	Howard Radio	24
Howard 445	1933	Rider	Rider 1	Howard Radio	8
Howard 445	1944	Rider	Rider 14	Howard Radio	3
Howard 45	1931	Gernsback	Gernsback 2	Radio	258T
Howard 45	1935	File	Howard-45-1935.ShortWaveCraft	0	jpg
Howard 450	1939	Rider	Rider 10	Howard Radio	27 30
Howard 450A	1939	Rider	Rider 10	Howard Radio	28
Howard 45AHV	1933	Rider	Rider 2	Howard Radio	6
Howard 45AHV	1933	Rider	Rider 3	Howard Radio	10
Howard 45AHVP	1933	Rider	Rider 3	Howard Radio	10
Howard 460	1942	Rider	Rider 13	Howard Radio	1
Howard 468	1939	Rider	Rider 10	Howard Radio	16 19
Howard 470	1933	Rider	Rider 1	Howard Radio	8
Howard 472;AC	1948	Rider	Rider 17	Howard Radio	4
Howard 472AC	1947	Beitman	Beitman 1947	TV Vol 1	91
Howard 472AF	1947	Beitman	Beitman 1947	TV Vol 1	91
Howard 472AF	1948	Rider	Rider 17	Howard Radio	4
Howard 472C	1947	Beitman	Beitman 1947	TV Vol 1	91
Howard 472C	1948	Rider	Rider 17	Howard Radio	1
Howard 472F	1947	Beitman	Beitman 1947	TV Vol 1	91
Howard 472F	1948	Rider	Rider 17	Howard Radio	1
Howard 474	1947	Beitman	Beitman 1947	TV Vol 1	89
Howard 474	1948	Rider	Rider 17	Howard Radio	11
Howard 47A	1935	Gernsback	Gernsback 6	Radio	568
Howard 47A	1936	Rider	Rider 7	Howard Radio	11
Howard 481A	1949	Beitman	Beitman 1949	-	51
Howard 481A	1949	Rider	Rider 19	Howard Radio	1
Howard 481B	1949	Rider	Rider 18	Howard Radio	1
Howard 481C	1949	Rider	Rider 18	Howard Radio	1
Howard 481M	1949	Rider	Rider 18	Howard Radio	1
Howard 482	1949	Rider	Rider 19	Howard Radio	2
Howard 482A	1949	Rider	Rider 19	Howard Radio	2
Howard 490	1942	Rider	Rider 13	Howard Radio	7
Howard 495	1933	Rider	Rider 1	Howard Radio	8
Howard 4B	1939	Rider	Rider 10	Howard Radio	1 7
Howard 4BT	1939	Rider	Rider 10	Howard Radio	2 7
Howard 50 ;Series 1	1935	Gernsback	Gernsback 6	Radio	568
Howard 50	1936	Rider	Rider 7	Howard Radio	11
Howard 502	1935	Gernsback	Gernsback 6	Radio	569
Howard 502	1935	Rider	Rider 6	Howard Radio	10
Howard 508S	1940	Rider	Rider 11	Howard Radio	5 16
Howard 50SW ;Series 2	1935	Gernsback	Gernsback 6	Radio	568
Howard 50SW	1936	Rider	Rider 7	Howard Radio	11
Howard 518	1940	Rider	Rider 11	Howard Radio	5 15
Howard 518APC	1940	Rider	Rider 11	Howard Radio	5 15
Howard 52	1935	Gernsback	Gernsback 6	Radio	569
Howard 52	1935	Rider	Rider 6	Howard Radio	10
Howard 520APC	1940	Rider	Rider 11	Howard Radio	5 16
Howard 525	1939	Rider	Rider 10	Howard Radio	16 20 32
Howard 526	1942	Rider	Rider 13	Howard Radio	9
Howard 56 ;Series 1	1936	Gernsback	Gernsback 7	Radio	1582
Howard 56	1937	Rider	Rider 8	Howard Radio	2
Howard 565	1940	Rider	Rider 11	Howard Radio	5 17
Howard 568	1940	Rider	Rider 11	Howard Radio	5 18
Howard 568R	1940	Rider	Rider 11	Howard Radio	5 19
Howard 568R	1941	Rider	Rider 12	Howard Radio	14
Howard 568RA	1940	Rider	Rider 11	Howard Radio	5 19
Howard 568RA	1941	Rider	Rider 12	Howard Radio	14
Howard 57 AUS	1935	Gernsback	Gernsback 6	Radio	570
Howard 575	1940	Rider	Rider 11	Howard Radio	5 21
Howard 57A	1935	Gernsback	Gernsback 6	Radio	570
Howard 57A	1936	Rider	Rider 7	Howard Radio	12
Howard 57AUS	1936	Rider	Rider 7	Howard Radio	13
Howard 58	1935	Gernsback	Gernsback 6	Radio	572
Howard 58	1936	Rider	Rider 7	Howard Radio	15
Howard 580	1940	Rider	Rider 11	Howard Radio	5 22
Howard 580APC	1940	Rider	Rider 11	Howard Radio	5 22
Howard 580C	1940	Rider	Rider 11	Howard Radio	5 22
Howard 585	1941	Rider	Rider 12	Howard Radio	15
Howard 59	1938	Rider	Rider 9	Howard Radio	26
Howard 5B	1936	Gernsback	Gernsback 7	Radio	1582
Howard 5B	1937	Rider	Rider 8	Howard Radio	1
Howard 60 ;Combination	1931	Gernsback	Gernsback 2	Radio	263
Howard 60 ;Series 1	1935	Gernsback	Gernsback 6	Radio	570
Howard 60	1936	Rider	Rider 7	Howard Radio	14
Howard 60AHV	1933	Rider	Rider 2	Howard Radio	6
Howard 60AHV	1933	Rider	Rider 3	Howard Radio	1 10
Howard 60AHVP	1933	Rider	Rider 3	Howard Radio	10
Howard 60SW ;Series 1	1935	Gernsback	Gernsback 6	Radio	571
Howard 60SW	1936	Rider	Rider 7	Howard Radio	12 14
Howard 626	1935	Gernsback	Gernsback 6	Radio	575
Howard 626	1937	Rider	Rider 8	Howard Radio	14
Howard 650 ;Preamp	1941	Rider	Rider 12	Howard Radio	17
Howard 650	1941	Rider	Rider 12	Howard Radio	17
Howard 660 ;Frequency Minitor	1941	File	Howard-435_436_437_660 ;Frequency Minitor-1941.Rider .Radio	Radio	pdf
Howard 660	1941	Rider	Rider 12	Howard Radio	11 18
Howard 665	1941	Rider	Rider 12	Howard Radio	17
Howard 67	1935	Gernsback	Gernsback 6	Radio	575
Howard 670A	1935	Rider	Rider 6	Howard Radio	7
Howard 67C	1937	Rider	Rider 8	Howard Radio	14
Howard 67T	1937	Rider	Rider 8	Howard Radio	14
Howard 68 ;Revised	1937	Rider	Rider 8	Howard Radio	4
Howard 68	1936	Gernsback	Gernsback 7	Radio	1583
Howard 68	1936	Rider	Rider 7	Howard Radio	17
Howard 6B	1938	Rider	Rider 9	Howard Radio	4
Howard 6BA	1938	Rider	Rider 9	Howard Radio	5
Howard 700	1940	Rider	Rider 11	Howard Radio	2
Howard 700	1942	Rider	Rider 13	Howard Radio	9
Howard 702	1941	Beitman	Beitman 1941	-	58
Howard 702	1941	Rider	Rider 12	Howard Radio	16
Howard 715	1937	File	Howard-B5_715(Sheaffer-Radio Clock_Radio Clock Pen Set)-1937.RadioCraft.Radio	Radio	jpg
Howard 718 ;Seriesx	1944	Rider	Rider 14	Howard Radio	5
Howard 718 ;Seriesx	1948	Rider	Rider 17	Howard Radio	25
Howard 718	1941	Rider	Rider 12	Howard Radio	19
Howard 718FM ;Series	1942	Rider	Rider 13	Howard Radio	11
Howard 718FM	1942	Rider	Rider 13	Howard Radio	11
Howard 718FM56	1948	Rider	Rider 17	Howard Radio	23
Howard 718X	1942	Beitman	Beitman 1942	-	59
Howard 718X	1944	Rider	Rider 14	Howard Radio	5
Howard 765	1941	Beitman	Beitman 1941	-	59-60
Howard 765	1941	Rider	Rider 12	Howard Radio	20 22
Howard 768	1941	Rider	Rider 12	Howard Radio	20 22
Howard 77C	1935	Gernsback	Gernsback 6	Radio	573
Howard 77C	1936	Rider	Rider 7	Howard Radio	19
Howard 77LW	1936	Rider	Rider 7	Howard Radio	21
Howard 77T	1935	Gernsback	Gernsback 6	Radio	373
Howard 77T	1936	Rider	Rider 7	Howard Radio	19
Howard 780	1941	Beitman	Beitman 1941	-	60-61
Howard 780	1941	Rider	Rider 12	Howard Radio	21
Howard 7BT	1938	Rider	Rider 9	Howard Radio	6
Howard 8-7	1936	Gernsback	Gernsback 7	Radio	1082
Howard 8 Green Diamond	1930	Gernsback	Gernsback 1	Radio	196
Howard 8	1930	RSS	RSS 1	Radio	42
Howard 802	1942	Beitman	Beitman 1942	-	60
Howard 802	1944	Rider	Rider 14	Howard Radio	9
Howard 806	1942	Rider	Rider 13	Howard Radio	15
Howard 808 ;Band spread	1942	Rider	Rider 13	Howard Radio	15-17
Howard 808 ;bandspread	1942	Rider	Rider 13	Howard Radio	15 17
Howard 808 ;Seriesx	1942	Rider	Rider 13	Howard Radio	19
Howard 808	1942	Beitman	Beitman 1942	-	61
Howard 808	1942	Rider	Rider 13	Howard Radio	16
Howard 810	1944	Rider	Rider 14	Howard Radio	7
Howard 865	1944	Rider	Rider 14	Howard Radio	10
Howard 868	1942	Beitman	Beitman 1942	-	62
Howard 868	1944	Rider	Rider 14	Howard Radio	11
Howard 901	1946	Beitman	Beitman 1946	-	55
Howard 901	1947	Rider	Rider 15	Howard Radio	1 4
Howard 901A	1947	Beitman	Beitman 1947	-	62
Howard 901A	1947	Rider	Rider 15	Howard Radio	1
Howard 901A	1947	Rider	Rider 16	Howard Radio	1
Howard 901A	1948	Rider	Rider 17	Howard Radio	4
Howard 901AE	1947	Rider	Rider 15	Howard Radio	1 4
Howard 901AH	1947	Rider	Rider 15	Howard Radio	1 4
Howard 901AI	1947	Rider	Rider 15	Howard Radio	1 4
Howard 901AM	1947	Rider	Rider 15	Howard Radio	1 4
Howard 901AP	1947	Beitman	Beitman 1947	-	62
Howard 901AP	1947	Rider	Rider 15	Howard Radio	3
Howard 901APA	1947	Rider	Rider 16	Howard Radio	2
Howard 902A	1949	Rider	Rider 18	Howard Radio	7
Howard 906	1947	Beitman	Beitman 1947	-	63
Howard 906	1947	Rider	Rider 16	Howard Radio	3
Howard 906C	1947	Rider	Rider 16	Howard Radio	4
Howard 906M	1948	Rider	Rider 17	Howard Radio	34
Howard 906S	1948	Rider	Rider 17	Howard Radio	29
Howard 906SB	1949	Rider	Rider 18	Howard Radio	9
Howard 909MR	1949	Rider	Rider 18	Howard Radio	4
Howard 920	1947	Beitman	Beitman 1947	-	64
Howard 920	1947	File	Howard-920-1947.RadioNews	Radio	jpg
Howard 920	1947	File	Howard-920-1947.RadioNews.Radio	Radio	pdf
Howard 920	1947	Rider	Rider 15	Howard Radio	5
Howard 99C	1935	Gernsback	Gernsback 6	Radio	574
Howard 99C	1936	Rider	Rider 7	Howard Radio	23
Howard 99LW	1936	Rider	Rider 7	Howard Radio	22
Howard 99T	1935	Gernsback	Gernsback 6	Radio	574
Howard 99T	1936	Rider	Rider 7	Howard Radio	23
Howard A12	1935	Gernsback	Gernsback 6	Radio	566
Howard A12	1935	Rider	Rider 6	Howard Radio	1
Howard A5	1933	Rider	Rider 1	Howard Radio	1
Howard A6	1933	Rider	Rider 1	Howard Radio	1
Howard AA25	1935	File	Howard-G26_Airplane 4_AA25-1935.RadioCraft	Radio	jpg
Howard AA25	1935	Gernsback	Gernsback 6	Radio	566
Howard AA25	1935	Rider	Rider 6	Howard Radio	3
Howard Airplane 4	1935	File	Howard-G26_Airplane 4-1935.RadioCraft.Radio	Radio	jpg
Howard Airplane 4	1935	File	Howard-G26_Airplane 4_AA25-1935.RadioCraft	Radio	jpg
Howard AP	1933	Gernsback	Gernsback 4	Radio	157
Howard AVH ;Chassis	1933	Rider	Rider 2	Howard Radio	6
Howard AVH ;Chassis	1933	Rider	Rider 3	Howard Radio	10
Howard AVH	1931	Gernsback	Gernsback 2	Radio	261
Howard AVHP ;Chassis	1933	Rider	Rider 2	Howard Radio	6
Howard AVHP ;Chassis	1933	Rider	Rider 3	Howard Radio	10
Howard AVO ;Chassis	1933	Rider	Rider 3	Howard Radio	11
Howard B13	1935	Gernsback	Gernsback 6	Radio	567
Howard B13	1935	Rider	Rider 6	Howard Radio	1
Howard B5	1937	File	Howard-B5_715(Sheaffer-Radio Clock_Radio Clock Pen Set)-1937.RadioCraft.Radio	Radio	jpg
Howard Cable Nelson	1933	Rider	Rider 2	Howard Radio	12
Howard CC23	1935	Gernsback	Gernsback 6	Radio	567
Howard CC23	1935	Rider	Rider 6	Howard Radio	3
Howard CC24	1935	Gernsback	Gernsback 6	Radio	567
Howard CC24	1935	Rider	Rider 6	Howard Radio	3
Howard D	1935	Rider	Rider 6	Howard Radio	5
Howard D4	1933	Rider	Rider 2	Howard Radio	12
Howard D8 ;Series A	1935	Gernsback	Gernsback 6	Radio	564
Howard D8	1935	Rider	Rider 6	Howard Radio	17
Howard E107	1935	Rider	Rider 6	Howard Radio	2
Howard E14	1935	Rider	Rider 6	Howard Radio	2
Howard E256	1938	Rider	Rider 9	Howard Radio	1
Howard E259	1938	Rider	Rider 9	Howard Radio	1
Howard E57	1935	Gernsback	Gernsback 6	Radio	571
Howard E57	1936	Rider	Rider 7	Howard Radio	12
Howard E5B	1938	Rider	Rider 9	Howard Radio	1 3
Howard Ex Dual Range	1933	Rider	Rider 3	Howard Radio	2
Howard Explorer ;Power Amp	1934	Rider	Rider 5	Howard Radio	6
Howard Explorer ;Type 1	1934	Rider	Rider 5	Howard Radio	4
Howard Explorer ;Type 2	1934	Rider	Rider 5	Howard Radio	5
Howard Explorer dual range	1933	Rider	Rider 3	Howard Radio	2
Howard Explorer W	1934	File	Howard-Explorer_Explorer W_W-1934.RadioCraft	Radio	jpg
Howard Explorer	1934	File	Howard-Explorer_Explorer W_W-1934.RadioCraft	Radio	jpg
Howard Explorer	1934	Rider	Rider 5	Howard Radio	7
Howard Explorer	1935	Rider	Rider 6	Howard Radio	13
Howard Explorer	1936	Rider	Rider 7	Howard Radio	9
Howard F ;Series A	1935	Gernsback	Gernsback 6	Radio	560
Howard F Pentode	1933	Rider	Rider 2	Howard Radio	1
Howard F	1935	Rider	Rider 6	Howard Radio	4
Howard FM718	1948	Rider	Rider 17	Howard Radio	20
Howard G26	1935	File	Howard-G26_Airplane 4-1935.RadioCraft.Radio	Radio	jpg
Howard G26	1935	File	Howard-G26_Airplane 4_AA25-1935.RadioCraft	Radio	jpg
Howard G26	1935	Rider	Rider 6	Howard Radio	3
Howard Grand ;Series 1	1935	Rider	Rider 6	Howard Radio	15
Howard Grand ;Series 1	1936	Gernsback	Gernsback 7	Radio	211
Howard Grand ;Series 2	1935	Gernsback	Gernsback 6	Radio	561-562
Howard Grand ;Series 2	1936	Rider	Rider 7	Howard Radio	1
Howard Green Diamond 8	1930	RSS	RSS 1	Radio	42
Howard Green Diamond	1933	Rider	Rider 1	Howard Radio	3-5
Howard Green diamond	1933	Rider	Rider 1	Howard Radio	3 5
Howard H ;Chassis 45	1933	Rider	Rider 3	Howard Radio	3
Howard H ;Chassis 45s	1933	Rider	Rider 3	Howard Radio	3
Howard H ;Chassis 47	1933	Rider	Rider 2	Howard Radio	3
Howard H ;Chassis 47s	1933	Rider	Rider 2	Howard Radio	3
Howard H ;Chassis	1933	Rider	Rider 2	Howard Radio	3
Howard H ;Chassis	1933	Rider	Rider 3	Howard Radio	3
Howard H	1931	Gernsback	Gernsback 2	Radio	260
Howard HA1	1935	Rider	Rider 6	Howard Radio	7
Howard HA2	1935	Gernsback	Gernsback 6	Radio	569
Howard HA2	1935	Rider	Rider 6	Howard Radio	10
Howard HA3	1935	Rider	Rider 6	Howard Radio	11
Howard HA4	1935	Gernsback	Gernsback 6	Radio	569
Howard HA4	1935	Rider	Rider 6	Howard Radio	12
Howard HA6 ;Series 1	1936	Gernsback	Gernsback 7	Radio	381
Howard HA6 ;Series 2	1936	Gernsback	Gernsback 7	Radio	511
Howard HA6	1936	Rider	Rider 7	Howard Radio	3 9
Howard HA7	1939	Rider	Rider 10	Howard Radio	3
Howard HA8	1939	Rider	Rider 10	Howard Radio	3
Howard HA9	1939	Rider	Rider 10	Howard Radio	3
Howard Highwayman	1934	Gernsback	Gernsback 5	Radio	421
Howard Intermediate freq	1936	Rider	Rider 7	Howard Radio	4
Howard J-3	1936	Gernsback	Gernsback 7	Radio	512
Howard J3Compact	1933	Rider	Rider 3	Howard Radio	12
Howard K ;Chassis	1933	Rider	Rider 3	Howard Radio	8
Howard K	1933	Gernsback	Gernsback 4	Radio	158-159
Howard L ;Chassis	1933	Rider	Rider 3	Howard Radio	5
Howard L	1933	Gernsback	Gernsback 4	Radio	151 16
Howard M ;Chassis Type 1	1933	Rider	Rider 3	Howard Radio	7
Howard M ;Chassis	1933	Rider	Rider 3	Howard Radio	6
Howard M	1933	Gernsback	Gernsback 4	Radio	162
Howard M901A	1939	Rider	Rider 16	Howard Radio	1
Howard O ;Chassis	1933	Rider	Rider 2	Howard Radio	8 13
Howard O	1931	Gernsback	Gernsback 2	Radio	261
Howard Push button adaptor	1940	Rider	Rider 11	Howard Radio	7
Howard Q	1934	Gernsback	Gernsback 5	Radio	417
Howard Q	1934	Rider	Rider 4	Howard Radio	2
Howard Q	1936	Rider	Rider 7	Howard Radio	9
Howard R-9	1936	Gernsback	Gernsback 7	Radio	1081
Howard R9	1934	Rider	Rider 5	Howard Radio	1
Howard S-2	1936	Gernsback	Gernsback 7	Radio	1082
Howard S-256 ;Series 1	1936	Gernsback	Gernsback 7	Radio	1581
Howard S2-S7	1934	Gernsback	Gernsback 5	Radio	416
Howard S2	1934	Rider	Rider 4	Howard Radio	1
Howard S2	1936	Rider	Rider 7	Howard Radio	9
Howard S225	1938	Rider	Rider 9	Howard Radio	9 13
Howard S225	1939	Beitman	Beitman 1939	-	59
Howard S250	1938	Rider	Rider 9	Howard Radio	9 13
Howard S250	1939	Beitman	Beitman 1939	-	59
Howard S256	1937	Rider	Rider 8	Howard Radio	2 10
Howard S259	1937	Rider	Rider 8	Howard Radio	2 13
Howard S260	1938	Rider	Rider 9	Howard Radio	10 13
Howard S260	1939	Beitman	Beitman 1939	-	59
Howard S6C	1930	Gernsback	Gernsback 1	Radio	196D
Howard S7	1934	Rider	Rider 4	Howard Radio	1
Howard S7	1936	Rider	Rider 7	Howard Radio	9
Howard SG-A	1930	Gernsback	Gernsback 1	Radio	196A
Howard SG-B	1930	Gernsback	Gernsback 1	Radio	196S 259(V2)
Howard SG-T	1931	Gernsback	Gernsback 2	Radio	258U
Howard SGA	1930	RSS	RSS 1	Radio	43
Howard SGA	1933	Rider	Rider 1	Howard Radio	6
Howard SGB	1933	Rider	Rider 2	Howard Radio	14
Howard SGC	1933	Rider	Rider 1	Howard Radio	6
Howard SGT	1933	Rider	Rider 2	Howard Radio	10
Howard SN7	1933	Rider	Rider 1	Howard Radio	2
Howard T ;Chassis	1933	Rider	Rider 2	Howard Radio	10
Howard W ;Explorer 2nd Revision	1935	Gernsback	Gernsback 6	Radio	563
Howard W ;Explorer	1934	Gernsback	Gernsback 5	Radio	418
Howard W ;Power Amp	1934	Rider	Rider 5	Howard Radio	6
Howard W ;Type 1	1934	Rider	Rider 5	Howard Radio	4
Howard W ;Type 2	1934	Rider	Rider 5	Howard Radio	5
Howard W Explorer ;2nd Revision	1935	Gernsback	Gernsback 6	Radio	563
Howard W Explorer	1934	Gernsback	Gernsback 5	Radio	418
Howard W Explorer	1934	Rider	Rider 5	Howard Radio	7
Howard W Explorer	1935	Rider	Rider 6	Howard Radio	13
Howard W Explorer	1936	Rider	Rider 7	Howard Radio	9
Howard W	1934	File	Howard-Explorer_Explorer W_W-1934.RadioCraft	Radio	jpg
Howard X2	1934	Gernsback	Gernsback 5	Radio	419
Howard X2	1934	Rider	Rider 4	Howard Radio	4
Howard X2	1936	Rider	Rider 7	Howard Radio	9
Howard X275	1939	Rider	Rider 10	Howard Radio	11
Howard X3	1934	Gernsback	Gernsback 5	Radio	419
Howard X3	1934	Rider	Rider 4	Howard Radio	4
Howard X3	1936	Rider	Rider 7	Howard Radio	9
Howard X6	1934	Gernsback	Gernsback 5	Radio	419
Howard X8	1934	Gernsback	Gernsback 5	Radio	419
Howard X8	1934	Rider	Rider 4	Howard Radio	4
Howard X8	1936	Rider	Rider 7	Howard Radio	9
Howard Y3	1934	Gernsback	Gernsback 5	Radio	419
Howard Z	1934	Gernsback	Gernsback 5	Radio	420
Howard Z4	1934	Rider	Rider 4	Howard Radio	6

Check your PayPal Email address is correct! (And your Spam folder, Gmail users especially!)

These radio, TV, record player, amplifier, amp and tape or cassette recorder schematics, circuit diagrams and service manuals are mostly high quality, very readable scans and will usually be Emailed within an hour or two, if I need to scan an item, or it's the middle of the night, it may take a little longer! Here in the UK it is 12:57. If more than one schematic is listed for a model I will generally send them all, unless too big to attach! Specialising in British schematics Roberts, Hacker, Bush, Pye etc. also American and German manuals feature strongly, search for what you need. Multi page manuals are Emailed as pdfs. Please Email or phone 0788 4425213 Thanks for looking, Mike.

Search for your Schematic

Fill in the "Make" and "Model" boxes, if you are unsure of the model, leave it blank and I will list ALL models for that manufacturer, similarly if you only have the model number leave "Make" blank and I will list similar model names from ALL manufacturers. How to repair your radio. More explanation here. Some sources searched :-

Book Set	KEY	Years
J.F. Riders Perpetual	Rider	1920-54
Trader Service sheets	Trader	1933-81
Beitmans Radio Diags	Beitman	1926-69
Beitmans TV Diagrams	BeitmanTV	1947-70
Gernsback Radio Diags.	Gernsback	1922-34
Empfanger Schaltungen	ES	1928-57
RCA Service Notes	RCASN	1923-52
Broadcaster Supplements	Broadcaster	1934-42
Radio and TV 36 vol set	RTV	1945-86
Radio and TV 5 vol set	RTV5	1945-54
Crosley Service Suppls.	Crosley	1929-42
My Pre-scanned Files	File	=>2022

The search logic is slightly "fuzzy" in that it's case insensitive and ignores punctuation so, model TR-510 is the same as tr510, and G.E.C is the same as "gec".

(247201 schematics^* by 1828 different manufacturers indexed!)
Updated 18th. Dec 2023

Search Time = 432 results in 30.2 mS. Log

ABC	AC Dayton	Accurate	Ace
ACEC	AceTone	Ache	Acme
Acorn	Acoustic	Acoustical	Acra Test
Acra Tone	Ada	Adaptol	Addison
Admiral ;Australia	Adret	Advance Electric	Advance
Advent	AEA	AEG	AEI
AEL	Aeonic	Aeradio	Aerialite
Aeriola	Aero Metal	Aero Motive	Aero Products
Aerodyne	Aetna	AFB	Affiliated
AGE	Agilent	AH Grebe	Ahemo
Aims	Air Castle	Air Chief	Air King
Air Knight	Air Ministry	Air Radio	Airline
Airmec	Airo	Airtone	Airzone
Aiwa	Ajax	AJS	Akai
AKG	Akkord	Akrad	Alamo
Alan	Alba	Alchemist	Alden
Alesis	Alfa	Algene	Allander
Allesandro	Allied Engineering Institute	Allied	Allocchio Bacchini
Alpha	Alpinist	Altar	Altec Lansing
Alto	Amalgamated	Amato	Ambassador
Amber	AMC	Amcron	American Bosch
American Data	American Foundation For the Blind	American MeriLei	American Motors
American Transformer	American TV	American	Ameritron
Ampeg	Ampex	Amphenol	Amplion
Ampro	Amrad	Amstrad	ANC
Andrea	Angstrem	ANK	Ansley
Antique Sound	Antone	Anubics	Aola Schlaak
Apex	Apogee	Apparatus	Appel Henderson
Appleton	Applied	Approved	Arborphone
Arcadia	Arcam	Archer	Ardent
Arel	Aren	Arena	Argos
Argosy	Argus	Aria	Ariane
Ariel	Arion	Aristocrat	Aristona
Aristophone	Arkay	Armstrong	ARP
ART	Arthur Ansley	Artone	Arvin
Arzamas	Ashton	Askar	Astars
Aster	Astor	Astrad	Astron
Atari	Atchison	Athena	Atlantic
Atlas	Atwater Kent	Audar	Audinac
Audio Design	Audio Note	Audio Research	Audiola
Audiolab	Audioline	Auricon	Austin
Austrovox	Autocrat	Automatic	Automovil
Autophon	Autoradio	AutoSuper	Autovox
Avco	Avery Fisher	Aviola	AVO
AWA	Award Session	Award	Axess
Azdam	Aztec	Bad Stone	Badcat
Baird	Balcombe	Baldwin	Balkeit
Balkite	Ballantine	BandBox	Bandmaster
Bang and Olufsen	Banner	Barcus	Barker
BarRadio	BARTG	BASF	BassMan
Bauer	BBC	BBE	Beaning
Becker	Beede	Beethoven	Behringer
Beitman	Beko	Belco	Belcom
Bell and Howell	Bell	Belle	Belmont
Belson	Beltek	Bendix	Bengal
Benkson	Benson	Beogram	Beolit
Berdsk	BEREC	Berlin	Bernard
Bernburg	Berning Seigfried	Bertoncini	Bespeco
Betterset	BF Goodrich	BGW	Biennophone
Bigg	Binatone	Binson	BK
Black Heart	Blackhawk	Blackstar	Blaupunkt
Blocs Accord	Blohm	Blonder	Blue Spot
Bobinas	Bogen	Bogner	Bolt
Bond	Boogie	Bosch	Bose
Boss	Brandes	Brandt	Braun
Brayhead	BRC	Bremer	Bremi
Brentwood	Breting	Brewster	Briconic
Brimar	Brionvega	Britamer	Broadcaster
Bronswick	Brook	Brown Boverie	Brown
Brownie	Browning	BRT	BRTR
Bruno	Brunswick	Brush	BSR
BTE	BTH	BTS	Buchla
Buckingham	Bud	Bugera	Buick
Bulova	Burbdept	Burgess	Burgoyne
Burman	Burndept	Burns	Burrell
Bush	BushLane	BushManual	Butler
BYE	Bylock	Cable Nelson	CAC
Cadillac	Calrad	Calsel	Calvert
Cameo	Campanela	Camtec	Canadian Radio
Canadian Westinghouse	Capehart	Capitol	Caravan
Carisch	Carlin	Carlsbro	Carousel
Carron	Carter	Carver	Carvin
Case	Castilla	Cavelcade	CBS
Celestion	Central Equipment	Century	CER
CGE	Chakophone	Champ	Champion
Chancellor	Channel Master	Channel	Cheliabinsk
Chevrolet	Chieftan	Chrysler	Cihan
Cisco	Cities Service Oil	Citronic	Civilian
Clago	Clarion	Classe ;Audio	Clearsonic
Cleartone	Climax	Clinton	Clipper
Clydon	CMC	Coast to Coast	Codar
Col R Tel	Collaro	Collins	Collorado
Colonial	Color sound	Colortel	Columbia
Comix	Commonwealth	Concord	Conrad Johnson
Consolidated	Consomello	Contessa	Continental
Convair	CoOp	Corona	Coronado
Coronet	Corvair	Corvette	Cosmos
Cossor	Couch	Courier	Craftsmen
Crate	CRC	Crescent	Crest Audio
Cromwell	Crosley	Crown	Crumar
Crystal	CTR	Currys	Cyldon
Cyrus	Czeija	DAF	Dan Armstrong
Danelectro	Dano	Dansette	Dansk
DARB	Dartington	Data	Daven
David Bogen	David Grimes	Daxon	Day Fan
DayRad	Daystrom	Dayton	DB
DBX	De Forest	Dean Markley	Decanno
Decca	Deccasound	Defiant	Delco
Delmonico	Delta	Deltalab	Denco
Denon	Desoto	Detrola	DeVar
DeWald	Dickerson	Dictograph	Diezel
Digitech	Diora	DKE	Dnepropetrovsk
Dod	Dodge	Dominion	Don Lee
Dorchester	Doric	Douglas	Drake
Drummer	DTW	Dual Engineering	Dual
Ducati	Ducretet	Dukane	Dulci
DuMont	Dumortier	Dunlop	Dwektronix
Dynaco	Dynacord	Dynakit	Dynaport
Dynatron	Eagle	EAP	EAR
Earl	Earth	Eastern	EAW
ECA	Echophone	Echoplex	EchoTape
Eckenroth	Ecko	Eckstein	Eddystone
Eden	Edison Bell	Edison	Ediswan
EDP	Edwards	Effedibi	Egnater
EH Research	EH Scott	EHRA	Eico
Ekco	Ekosonic	Ekotape	EL Rey
Elbeg	Elbia	Elcophon	Electone
Electrad	Electric Autolite	Electric Automotive	Electric Specialties
Electrical Research	Electro Acoustic	Electro Betrrieb	Electro Harmonix
Electro Matic	Electro Technical	ElectroHome	Electromuse
Electronic Corp	Electronic Dream Plant	Electronic Labs	Electronic Music Labs
Electrophone	Electroplex	ElectroVoice	Eletrofone
Elgar	Elizabethan	Elk	Elka
Elmug	Elpico	Eltra	Elxon
EMC	Emerson ;Argentina	EMI	Emisonic
EML	EMM	Emor	Empire Designing
Empire Electrical	EMS	Emtron	EMU
Emud	EMW	Eneka	Engl
English Electric	Envoy	Epiphone	ERLA
Ermsa	ERT	Erwa	ES
Espey	Esquire	Estey	Estyma
Etra	Etronic	Eumig	Europhon
Europhone	Evans	Everready	Excelsior
Exelrad	Facit	Factotum	FADA
Fairbanks	Fairchild	Fairlight	Falcon
Falks	Fansteel	Fapesa	Farfisa
Farnell	Farnsworth	Farrand	Fasma
Federal Manufacturing	Federal Radio	Federal	Federated
Felgate	Fender	Ferguson	Ferrando
Ferranti ;Similar	Ferrar	Ferris	Ferrograph
Fiat	Fidelity	Finlux	Fiolent
Firestone	First National Radio	Fisher	Fisk
Fitton	FJ Fitzgerald	Fleetwood	Florac
Fluke	Flush Wall	FM Specialities	FNR
Fonotalk	Ford Philco	Ford	Fordson
Fourier	Foxx	Framus	Franklin
Freed	French Jesse	Freshman	Fret and Foot
Frost Minton	Fulton	Funkstrahl	Furguson
Furgusonic	Furman	Futterman	Futurama
Galaxy	Gallien Krueger	Galvin	Gamble Skogmo
Garnet	Garod	Garrard	Gates
GBC	GCHQ	GE ;Argentina	GEC
Gecophone	Geloso	Gem	Gemeinschafts
Genalex	General Dynamics	General Fire	General Household
General Implement	General Industries	General Instrument	General Radio
General TV	Generic	GenRad	Geodyn
Gernsback	Gerufon	Geta	Giannina
Gibson	Gigrac	Gilbert	Gilfillan
Gladstone	Globe	GM	Goblin
Goerz Metrawatt	Golden Tube	Goldentone	Goldpfiel
Goldring	Goldstar	Gonset	Goodmans
GoodYear	Gordon Elf	Gotham	Gould
Graetz	Graham Paige	Graham Philco	Grainger
Gramaphone	Gramdeck	Grammont	Grampian
Granada	Granco	Grandin	Grant
Grantline	Grasman	Grasmann	Graves
Gray Danielson	Gray	Graybar	Grebe
Gregory	Gretsch	Grigsby	Grommes
GrooveTube	Gross	Grozny	Grundig
GT	Guild	Guitar Research	Gulbransen
H Clarke	HAC	Hacker	Haco
Hagenuk	Hagstrom	Halcyon	Hale
Hallicrafters	Halson	Hameg	Hamilton
Hammarlund	Hammond	Hanimex	Hansen
Harman Kardon	Harmony	Harold Shevers	Harris
Hartke	Harty Young	Harvard	Harvey Wells
Hastings	Hatry	HEA	Healing
Hear All Continents	Heath	Heathkit	Heli
Henry	Henrys Radio	Herbert Horn	Hermes
Hetro	HF Labs	HH ;Electronics	HH Scott
Hi Lo	Hickok	Hitachi	Hiwatt
HK	HMGCC	HMV ;Australia	HMV New Zealand
Hoffman	Hohner	Honda	Hoodwin
Horny	Hornyphon	Hotpoint	Howard
HP	Hudson Motors	Hudson Ross	Hudson
Hughes Kettner	Hupmobile	Huth	Ibanez
Iberia	ICA	Icom	Ideal
Imefon	Impact	Imperial	IncarRadio
Indesit	Industria Radiotecnica	Industrial Electronic	Industrial Instruments
Inelro	Ingelen	Insuline	Intensofunk
Interceptor	InterM	Intermark	International Detrola
International industries	International	InterOcean	Interstate
Invicta	Invictus	Irradio	Iskra
ITT	J G Graves	Jackson	Jadis
Jahnke	James	Jason	JBL
JD	Jefferson Travis	Jen	Jenkins
Jennings	Jerrold	Jerry Donahue	Jesse
Jet City	Jewel	Jimi Hendrix	JMF
John Meck	John Radio	Johnson	Jolida
Jordan	Jotha	JP Seeburg	Juergen Simon
Jugo	Jungmann	Jupiter	JVC
JW Davis	Kaar Engineering	Kadette	Kaiser
Kalamazoo	Kamensk	Kampo	Kappler
Kapsch	Karadio	Kawai	Kay
KB	Keighley	Keller Fuller	Kellog
Ken Brown	Kennedy	Kenpro	Kent
Kenwood	Kernwood	Ketay	Kiev
King	Kings	Kingston	Kishtim
Kittyhawk	Klangfilm	Klemt	KLH
Klinger	Knight	KnightKit	KO
Koch	Kodel	Kolleda	Konka
Korg	Korting	Kosmovox	Koyo
Krakauer	Kramolin	Krefft	Kriesler
Krishke	Krohler	Kudelski	Kurzweil
Kustom	KW communications	Kylectron	L and L
L Tatro	Laboga	Lafayette	Lamagna
Lamco	Landry	Laney	Lang
Lange	Langevin	Larinko	Laselle
Laurehk	Leader	Leak	Leander
Lear	Lectrolab	Leipzig	Lembeck
Leningrad	Lesam	Lesley	Leslie
Leutz	Levell	Lewol	Lewt
Lexicon	Lifco	Lincoln	Line 6
Linear	Lissen	Loewe	Loftin
Logan	Lohja	London City	London Electric
Long	Lord	Lorenz	Lotus
Loud ;Technologies	Lowrey	LTP	Lumophon
Luxor	Lyric	Lytle and Canon	Mac
Mackay	Mackie	Maco	Macy
Madison Moore	Madrigal	Maesto	Maestro
Magatone	Magic Tone	Magnadyne	Magnatone
Magnavox	Maguire	Maihak	Mains Radio Gramaphones
Maintainence	Majestic	Major	Mallory
Mantel	Mantola	Marantz	Marc
Marconi ;Canada	Marconiphone	Marcucci	Marelli
Margolin	Mark Simpson	Mark	MarkBass
Marlboro	Marmax	Marshall	Marti
Martin	Masbel	Masco	Mashpriborintorg
Master Care	Master Radio	Masteradio	Masterpiece
Matchless	Matsushita	Maxon	Mazda
MBLE	McCarthy	McIntosh	McMichael
McMillan	McMurdo	Meazzi	Mebgeratebau
Meck	Mectron	Mediator	Megard
Megger	Meissner	Melburn	Melorad
Melos	Mende	Mercantile	Mercury
Mesa	Meteor	Metrodyne	Metropolitan Vickers
Metz	MEW	MFA	Micro Electronic
Micro Radio	Micronta	Midland	Midwest
Military	Mills	Milwaukee	Minerva
Minsk	Miraco	Mirage	Mission Bell
Mission	Mitchell	Mitsubishi	Mivar
Mohawk	Molded	Monarch	Monelectric
Monitor	Monogram	Monsanto	Montgomery Ward
Moog	Mopar	Morley	Morphy Richards
Moscow Deaf Aid	Moscow	Moskovsky	Mosrite
Motek	Moto Meter	Moto	Motorola
Motovia	Motovox	Moulinex	MRTZ
Mullard ;Australia	Multitone	Multivox	Munston
Muntz	Murphy ;New Zealand	Musaphonic	Musette
Music Man	Musicaid	Musicaire	Musical Fidelity
Musique	Muzak	MXR	NAD
Naiwa	Nakamichi	Nanaola	Nash
Nassau	Nathanial	National Acoustical	National Carbon
National Cooperative	National Dobro	National Panasonic	National Radio Company
National Radio Institute	National Radio Products	National Tape Recorder	National Transformer
National Union	National	Nato	Navico
Navigator	Navships	NEC	Network
Neumann	Newcombe	Newmatic	NH Radio
Niemann	Nintendo	Nissl	Nivico
Nizhegorodsky	Nobels	Noblex Berna	Noblex Carina
Noblex Fabulino	Noblex	Noblitt Sparks	Nora
Norco	Nord Mende	Norden Hauck	Norelco
Norlin	Norma	Northcourt	NorthEastern Engineering
Northern Electric	Northern Radio	Northland	Nova
Novak	Novator	NRI	NSF
NSM	Oahu	Oak	Oberheim
Oceanic	Octave	OK	Okean
Oldsmobile	Oldsmodbile	Olympic	Omega
Onkyo	Opel	Operadio	Opta
Orange	Orion	ORR	Orsha
Orthon	Osaka	Osram	Owin
Ozarka	Pacent	Pacific Radio	Pacific Research
Pacific	Packard Bell	Packard Motor Car	Packard Philco
Packard	Pageant	Paillard	Palace
Palec	Palomar	PAM	Pamphonic
Panasonic	Panatrope	Panoramic	Paramount Radio
Park	Parker Mccrory	Parmak	Paros
Parsek	Pathe	Paton	Patterson
Pearce Simpson	Pearce	Pearl	Peavey
Pedersen	Peerless	Pellegrinetti	Pennine
Pentron	Perdio	Perfectone	Peter Pan
Peto Scott	Pfanstiehl	Phicco	Phico
Philbrick	Philco ;Italy	Philetta	Philharmonic
Philips ;America	Phillips Petroleum	Philmore	Phonic
Phonola	Pierce Airo	Pierce Arrow	Pierce
Pierson Delane	Pierson	Pifco	Pig Nose
Pilgrim	Pilot	Pioneer	Pizon
Playcraft	Playmate	Plaze Music	Plessey
Plustron	Plustronics	Plymouth Philco	Plymouth
Poliot	Polytone	Polyvox	Pontiac
Popular Mechanics	Port0Matic	Portadyne	Porto Baradio
Porto Products	Porto Radio	Porto Server	Portodyne
Portogram	Powersoft	Precedent	Precision Radio
Precision	Premier	Priess	Proctor Silex
Promenette	Pulse Techniques	Pure Oil	Puritan
Purotone	Purple Cow	Puxing	Pye ;Australia
Pyeway	QSC	QTX	Quad
Qualiton	QuanTech	Quartz Lock	Racal
Radford	Radialva	Radiart	Radiette
Radio Acoustic Products	Radio and Television	Radio Chassis	Radio Circular
Radio Development Research	Radio Displays	Radio Electric	Radio Engineering
Radio Gram	Radio Kits	Radio Marine	Radio Product
Radio Products	Radio Recepter	Radio Receptor	Radio Rentals
Radio Service	Radio Shack	Radio Technic	Radio Trading
Radio Union	Radio Vision	Radio Wire	Radiobar
RadioCorp	Radioette	RadioExchange	Radiofon
Radiola	RadiolaGram	Radiolette	Radiomarelli
Radiometer	RadioMobile	Radione	Radionette
Radionic	Radiopribor	Radiotehnika	Radiotron
Radiotrope	Radolek	RAF	Rainbow
Randall	Rank	Ranser	RAP
RAS	Rat	Rauland	Ray
Raymond	Raytheon	RBM	RCA
RCASN	RCF	RCR	RCS
RE Lacault	ReadRite	Realistic	Recording Devices
RedBear	Rediffusion	Redifon	Rees Mace
Regal	Regency	Regent	Regentone
Reico	Rema	Remler	Renard
Renault	Rent a Set	REO	Repanco
Republic	RER	Retra	Revelation
Revere	Revox	Rexel	RFT
RFW	RGD	RGH	Rheem
Rhodes	RI	Rick Campbell	Rickenbacker
RickTone	Rider	Rigas	Rigonda
Rivera	Riweco	RK Radio	RM Electric
RME	RMSE	Robert Lawrence	Roberts ;USA
Robertson	Robuck	Robuk	Rocke International
Rockford	Rockola	Rodgers	Rogers Majestic
Rogers	Rohde Schwarz	Rola	Roland
Rolax	Rolland	Romac	Ross
RR	RRR	RSC	RSS
RT	RTV Cross Reference	Russell	Ruwel
SABA	Sachsenwerk	SAE	Salara
Salora	Sam Ash	Sampson	Sams
Samson	Samsung	Sangamo	Sangean
Sango	Sano	Sanshin	Sansui
Sanyo	Saradul	Sargent EM	Sargent Rayment
Savage	Savil Radio	SBE	SBR
Scandyna	Schaleco	Schaller	Schaub
Schlaak	Schlumberger	Scott Transformer	Scott
SDC	Sea pal Radio	Searle Aero	Sears Roebuck
Seat	Seco	Seiberling	Seibt
Seimens	Selena	Selmer	Semcor
Sencore	Sentinel	Sequential	Service
Session Master	Setchell Carlson	Seymour Duncan	Shamrock Radio
Sharp	Sheaffer	Shelley	Sheridan
Sherwood	Sicart	Siemens	Siera
Signal Battery Company	Signal Electronics	Silco	Silver King
Silver Marshall	Silver	Silvertone	Simmons
Simms Watts	Simplex	Simplon	Simpson
Sinclair	Singer	Single	Sintar
Skantic	Skoda	Sky Rover	Slagle
Sleeper	SM	Smiths	SNR
Sobell	Sobol	Socora	SOE
Sokol	Solar	Solartron	SolaSound
Soldano	Solectric	Solton	Sommerkamp
Sona	Sonar	Sonatel	Sonocraft
Sonolor	Sonora	Sony ;Australia	Sound City
Sound Mirror	Sound View Marine	Sound	Soundcraft
Soundesign	Sovtek	Sparks Withington	Sparton
Spatz	Spencer West	Spencer	Spezial
Spica	Spidola	Spiegel	Spika
Splawn	Splitdorf	Sprague	SRA
SRT	Stairs Winters	Stancor	Standard Radio Telefon
Standard	Standel	Stanley	Star Raider
Star	Starck	Starg	Stark
Startford	Starton	Stassfurt	Staudigl
STC ;Australia	Steelman	Steinite	Stella ;New Zealand
Stenode	Stereo Full	Stereo	StereoSound
Sterling	Stern	Stewart Radio	Stewart Turner
Stewart Warner	Stinger	Story Clark	Strad
Stratfield	Strauss	Strawberry Blonde	Strobotuner
Stromberg Carlson	Studebaker	Studiomaster	Stuzzi
Sudfunk	Sunbeam	Sundown	Sunn
Superior	Superstar	Supertone	Suprem
Supreme	Supro	Svenska Radio Aktiebolaget	Svetlovodsk
Swan	Swirlux	SWR	Sylvania
Symphony	Taffet	Tak	Talk-a-Phone
Tandberg	Tandy	Tannoy	Tapco
Tascam	Tasma	Tatung	Taylor
TCA	TCE	TEAC	Tech
Technics	Teclemit	Tectronix	Tefag
Tefi	Teisco	Tekade	Tekelec
Tektronix	Tele King	Tele Tone	Telechron
Telecoin	Teledyne	Telefunken	Telephone
Telequipment	Teleton	Teletron	Televian
TelevisionTraining Institute	Telsen	Temple	TempleTone
Tempovox	Tento	Terta	Tesla
Texan	THD	Therm	Thomson
ThomsonHouston	Thordarson	Thorn	Throens
TI	Tiffany Tone	TimeElectronics	Titan
TMC	TMK	Todd	Tokyo HY Labs
TomThumb	Tonomac	Topeco	Tophat
Torn	Tornister	Torotor	Torres
Toshiba	ToshibaManual	Trace Elliot	Trader
Tradio	Trainwreck	Trans Arena	Transatlantic
Transformer Corps	Transitone	Transmission Products	Transvision
Traveller	Travler	Traynor	Triangle
Tricity	Trimax	Trio	Triplet
Trix	TRK	Tropic Aire	Troubador
Troy	True Value	Truetone	Truphonic
Truvoice	TruVox	TUAC	Turner
Tyrman Electric	Ucoa	Uher	UKW
Ultra	Ultradyne	Ultramar	Unda
Unic	Unicord	Uniden	United Air Cleaners
United Motor Service	United Motors	United Recording	United Reproducers
United Reproduction	United	Unitra	Universal Battery
Universal	Universum	Univox	UnKnown
US Electric	US Radio	US Television	USAF
Utah	UTC	V Lectrical	Valco
Valiant	Valradio	Van Der Molen	Vandyke
Varley	VEB	VEF	Vega
Velodyne	Vickers	Victor	Victoreen
Video Corporation	Videodyne	Vidor	View
Viewtone	Viking	Vision Research Labs	VM
Vocoline	Voice of Music	Volks	Volkswagen
Volmar	Voronezh	Vox	Voxson
VSE	VW	Waco	WaldSchidt
Walgreen	Walker George W	Walter	Waltham Standard
Waltham	WanYong	Ward	Ware
Warner	Warwick	Waterman	Watkins
Watt	Watterson	WaveTek	Wayfarer
WayneKerr	WB	Webcor	Webster
Weco	Wega	Wells Gardner	WEM
Westbury	Western Air Patrol	Western Auto	Western Electric
Western Royal	Western	Westinghouse	Westminster
Weston	Westone	Wextark	Weymouth
Weyrad	Wharfedale	White Ibbotson	White
Whiteley	Whitley	Wholesale	Wiking
Wilco	Wilcox Gay	Willard	William J Murdock
Willys	Winco	Windsor	Wings
Wireless Set	WireRecorder	Woolaroc	Workrite
World Radio	WQXR	WRL	WT Grant
WT Knott	Wundercart	Wurlitzer	Xtal
Yaesu	Yamaha	York	Yorkville
Zaney	Zanusi	Zaporizhzhya	Zenith
Zenitron	Zentro	Zephyr	Zetavox

Howard Schematics, Service manual or circuit diagram £1.80 (~ $2.20 or €2.10)

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432 Howard models listed

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(247201 schematics* by 1828 different manufacturers indexed!)Updated 18th. Dec 2023

Howard Schematics, Service
manual or circuit diagram £1.80 (~ $2.20 or €2.10)

(247201 schematics^* by 1828 different manufacturers indexed!)
Updated 18th. Dec 2023