Schematics, Service manual or circuit diagram
for Hiwatt Schematic £1.80 ($2.30, €2.0)




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60 Hiwatt models


Model
Click to Order!		 Year Book/
Source		 File Type/
Volume		 Page/
Ext		 Preview/Status
Hiwatt DR1031979FileHiwatt_SoundCity
-DR103_DR112_SA112FL
_SA115FL-1979.Amp		AmppdfHiwatt DR103 schematic circuit diagram
Hiwatt DR1031979FileHiwatt_SoundCity
-DR103_DR112_SA112FL
_SA115FL_DR504_DR112 ;100W
-1979.Amp		AmppdfHiwatt DR103 schematic circuit diagram
Hiwatt DR103 ;100W-FileHiwatt_SoundCity
-DR103 ;100W.Amp		AmppdfHiwatt DR103 ;100W schematic circuit diagram
Hiwatt DR103 ;PreAmp1979FileHiwatt_SoundCity
-DR405 ;400W_DR504 ;PreAmp
_DR103 ;PreAmp_DR201 ;PreAmp
_DR405 ;PreAmp-1979		FilepdfHiwatt DR103 ;PreAmp schematic circuit diagram
Hiwatt DR1121979FileHiwatt_SoundCity
-DR103_DR112_SA112FL
_SA115FL-1979.Amp		AmppdfHiwatt DR112 schematic circuit diagram
Hiwatt DR1121979FileHiwatt_SoundCity
-DR103_DR112_SA112FL
_SA115FL_DR504_DR112 ;100W
-1979.Amp		AmppdfHiwatt DR112 schematic circuit diagram
Hiwatt DR1121979FileHiwatt_SoundCity
-DR112_DR203_STA200 ;200W
-1979.Amp		AmppdfHiwatt DR112 schematic circuit diagram
Hiwatt DR112 ;100W1979FileHiwatt_SoundCity
-DR103_DR112_SA112FL
_SA115FL_DR504_DR112 ;100W
-1979.Amp		AmppdfHiwatt DR112 ;100W schematic circuit diagram
Hiwatt DR201 200W-FileHiwatt_SoundCity
-DR201 200W.Amp		AmppdfHiwatt DR201 200W schematic circuit diagram
Hiwatt DR201 ;PreAmp1979FileHiwatt_SoundCity
-DR405 ;400W_DR504 ;PreAmp
_DR103 ;PreAmp_DR201 ;PreAmp
_DR405 ;PreAmp-1979		FilepdfHiwatt DR201 ;PreAmp schematic circuit diagram
Hiwatt DR2031979FileHiwatt_SoundCity
-DR112_DR203_STA200 ;200W
-1979.Amp		AmppdfHiwatt DR203 schematic circuit diagram
Hiwatt DR405 ;400W1979FileHiwatt_SoundCity
-DR405 ;400W_DR504 ;PreAmp
_DR103 ;PreAmp_DR201 ;PreAmp
_DR405 ;PreAmp-1979		FilepdfHiwatt DR405 ;400W schematic circuit diagram
Hiwatt DR405 ;PreAmp1979FileHiwatt_SoundCity
-DR405 ;400W_DR504 ;PreAmp
_DR103 ;PreAmp_DR201 ;PreAmp
_DR405 ;PreAmp-1979		FilepdfHiwatt DR405 ;PreAmp schematic circuit diagram
Hiwatt DR5041979FileHiwatt_SoundCity
-DR103_DR112_SA112FL
_SA115FL_DR504_DR112 ;100W
-1979.Amp		AmppdfHiwatt DR504 schematic circuit diagram
Hiwatt DR504 ;50W1979FileHiwatt_SoundCity
-DR504 ;50W-1979
.Amp		AmppdfHiwatt DR504 ;50W schematic circuit diagram
Hiwatt DR504 ;PreAmp1979FileHiwatt_SoundCity
-DR405 ;400W_DR504 ;PreAmp
_DR103 ;PreAmp_DR201 ;PreAmp
_DR405 ;PreAmp-1979		FilepdfHiwatt DR504 ;PreAmp schematic circuit diagram
HiWatt L100R-FileHiWatt-L100R_L50R
.Amp		AmppdfHiWatt L100R schematic circuit diagram
HiWatt L50R-FileHiWatt-L100R_L50R
.Amp		AmppdfHiWatt L50R schematic circuit diagram
Hiwatt Lead 105-FileHiwatt_SoundCity
-SC105_Lead 105
.Amp		AmppdfHiwatt Lead 105 schematic circuit diagram
Hiwatt SA112 ;PSU-FileHiwatt_SoundCity
-SA115 ;50W_SA112 ;PSU
_SA115 ;PSU_SA212 ;PSU
.Amp output Stage		AmppdfHiwatt SA112 ;PSU schematic circuit diagram
Hiwatt SA112-FileHiwatt_SoundCity
-SA112_SA115_SA212 ;50W
.Amp		AmppdfHiwatt SA112 schematic circuit diagram
Hiwatt SA112FL1979FileHiwatt_SoundCity
-DR103_DR112_SA112FL
_SA115FL-1979.Amp		AmppdfHiwatt SA112FL schematic circuit diagram
Hiwatt SA112FL1979FileHiwatt_SoundCity
-DR103_DR112_SA112FL
_SA115FL_DR504_DR112 ;100W
-1979.Amp		AmppdfHiwatt SA112FL schematic circuit diagram
Hiwatt SA115 ;50W-FileHiwatt_SoundCity
-SA115 ;50W_SA112 ;PSU
_SA115 ;PSU_SA212 ;PSU
.Amp output Stage		AmppdfHiwatt SA115 ;50W schematic circuit diagram
Hiwatt SA115 ;PSU-FileHiwatt_SoundCity
-SA115 ;50W_SA112 ;PSU
_SA115 ;PSU_SA212 ;PSU
.Amp output Stage		AmppdfHiwatt SA115 ;PSU schematic circuit diagram
Hiwatt SA115-FileHiwatt_SoundCity
-SA112_SA115_SA212 ;50W
.Amp		AmppdfHiwatt SA115 schematic circuit diagram
Hiwatt SA115FL1979FileHiwatt_SoundCity
-DR103_DR112_SA112FL
_SA115FL-1979.Amp		AmppdfHiwatt SA115FL schematic circuit diagram
Hiwatt SA115FL1979FileHiwatt_SoundCity
-DR103_DR112_SA112FL
_SA115FL_DR504_DR112 ;100W
-1979.Amp		AmppdfHiwatt SA115FL schematic circuit diagram
Hiwatt SA200 ;200W-FileHiwatt_SoundCity
-SA200 ;200W.Amp		AmppdfHiwatt SA200 ;200W schematic circuit diagram
Hiwatt SA212 ;50W-FileHiwatt_SoundCity
-SA112_SA115_SA212 ;50W
.Amp		AmppdfHiwatt SA212 ;50W schematic circuit diagram
Hiwatt SA212 ;PSU-FileHiwatt_SoundCity
-SA115 ;50W_SA112 ;PSU
_SA115 ;PSU_SA212 ;PSU
.Amp output Stage		AmppdfHiwatt SA212 ;PSU schematic circuit diagram
Hiwatt SA4121974FileHiwatt_SoundCity
-SA412-1974.Amp		AmppdfHiwatt SA412 schematic circuit diagram
Hiwatt SC105-FileHiwatt_SoundCity
-SC105_Lead 105
.Amp		AmppdfHiwatt SC105 schematic circuit diagram
Hiwatt STA1001979FileHiwatt_SoundCity
-STA100_STA200_STA200R
_STA200D-1979.PreAmp		AmppdfHiwatt STA100 schematic circuit diagram
Hiwatt STA2001979FileHiwatt_SoundCity
-STA100_STA200_STA200R
_STA200D-1979.PreAmp		AmppdfHiwatt STA200 schematic circuit diagram
Hiwatt STA200 ;200W1979FileHiwatt_SoundCity
-DR112_DR203_STA200 ;200W
-1979.Amp		AmppdfHiwatt STA200 ;200W schematic circuit diagram
Hiwatt STA200D1979FileHiwatt_SoundCity
-STA100_STA200_STA200R
_STA200D-1979.PreAmp		AmppdfHiwatt STA200D schematic circuit diagram
Hiwatt STA200R1979FileHiwatt_SoundCity
-STA100_STA200_STA200R
_STA200D-1979.PreAmp		AmppdfHiwatt STA200R schematic circuit diagram
Hiwatt STA2501979FileHiwatt_SoundCity
-STA250_STA250R ;200W
-1979.Amp		AmppdfHiwatt STA250 schematic circuit diagram
Hiwatt STA250R ;200W1979FileHiwatt_SoundCity
-STA250_STA250R ;200W
-1979.Amp		AmppdfHiwatt STA250R ;200W schematic circuit diagram
Hiwatt STA400 ;400W Slave1979FileHiwatt_SoundCity
-STA400 ;400W Slave
-1979.Amp		AmppdfHiwatt STA400 ;400W Slave schematic circuit diagram
Watt 4-FileWatt-4.RadioRadiojpgWatt 4 schematic circuit diagram
Watt Auditorium-FileWatt-Auditorium
.Radio		RadiogifWatt Auditorium schematic circuit diagram
Watt Augusto-FileWatt-Augusto.RadioRadiogifWatt Augusto schematic circuit diagram
Watt AureaPiccolo-FileWatt-AureaPiccolo
.Radio		RadiogifWatt AureaPiccolo schematic circuit diagram
Watt Cadetto-FileWatt-Cadetto.RadioRadiogifWatt Cadetto schematic circuit diagram
Watt Fonetto718-FileWatt-Fonetto718
.Radio		RadiopdfWatt Fonetto718 schematic circuit diagram
Watt Freccia-FileWatt-Freccia.RadioRadiopdfWatt Freccia schematic circuit diagram
Watt Gemma-FileWatt-Gemma.RadioRadiopdfWatt Gemma schematic circuit diagram
Watt Imperiale-FileWatt-Imperiale.RadioRadiogifWatt Imperiale schematic circuit diagram
Watt Piccolo-FileWatt-Piccolo.RadioRadiojpgWatt Piccolo schematic circuit diagram
Watt PiccoloSport-FileWatt-PiccoloSport
.Radio		RadiojpgWatt PiccoloSport schematic circuit diagram
Watt PiccoloSupersport-FileWatt-PiccoloSupersport
.Radio		RadiojpgWatt PiccoloSupersport schematic circuit diagram
Watt PiccoloTaurus6-FileWatt-PiccoloTaurus6
.Radio		RadiojpgWatt PiccoloTaurus6 schematic circuit diagram
Watt Siderodina-FileWatt-Siderodina
.Radio		RadiojpgWatt Siderodina schematic circuit diagram
Watt SuperSport-FileWatt-SuperSport
.Radio		RadiopdfWatt SuperSport schematic circuit diagram
Watt Tesoro-FileWatt-Tesoro.RadioRadiojpgWatt Tesoro schematic circuit diagram
Watt Transset-FileWatt-Transset.RadioRadiojpgWatt Transset schematic circuit diagram
Watt Vittoria-FileWatt-Vittoria.RadioRadiogifWatt Vittoria schematic circuit diagram
Watt wr8-FileWatt-wr8.RadioRadiogifWatt wr8 schematic circuit diagram

These radio, TV, record player 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 here (it is 06:01 in the UK) it may take a little longer!
If more than one schematic is listed for a model I will 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 Thanks for looking, Mike.
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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.
More explanation here. Some sources searched :-
J.F. Rider's Perpetual Rider 1920-54
Trader Service sheets Trader 1933-81
Beitman's Radio Diags Beitman 1926-69
Beitman's TV Diagrams Beitman 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
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".

(286957 schematics* by 2153 different manufacturers indexed!)
Updated 22nd. Apr 2021

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