Buy your "admiral" "20y4d" Schematic




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"admiral" "20y4d" Specification spec data sheet


The following notes are automatically scraped from Google,DuckDuckGo,
Yahoo and Yandex by an Artificial (not so) Intelligent algorithm
CountryUnited States of America (USA)
ManufacturerAdmiral (brand) Continental Radio & Television Co.; Chicago, IL
Alternative Name Continental Radio & TV
ModelModel C28B7 Sierra Chassis 20Y4D - Admiral brand Continental
Year: 1956Category: TV
Valves20: 6BC8 6J6 6BZ6 6BZ6 6AM8 6AW8 6BH8 6AU6 6AL5 6AV6 6BF5 6CS6 6AV5GT 6AL5 12AU7 6CD6G 6AU4GT 1B3GT 5U4GA 27RP4
TechnologySuperhet with RF-stage
Wave BandsWave Bands given in the notes.
Power typeAC / 60 cycles, 117V = 110 -120 Volt
SourceBook: beitman Vol: 1956 Page: 5-18


TypeConfigurationYearBaseEquivalents
6BC8Double Triode19566BZ8
6J6Double Triode1956B7GCV858 ECC91
6BZ6Pentode1955B7G6JH6
6BZ6Pentode1955B7G6JH6
6AU6Pentode1946B7G6AU6A 6AU6WA 6AU6WB 6AU6WC 6J4P 6P2 CV2524 EF94
6AL5Double Diode1945B7G6058 6D2 CV140 CV283 D152 D77 DD6 EAA91 EB91
6AV6Double Diode Triode1948B7G6BC32 CV2526 EBC91
6CS6Heptode1954EH90
6AL5Double Diode1945B7G6058 6D2 CV140 CV283 D152 D77 DD6 EAA91 EB91
12AU7Double Triode1951B9A6067 B329 CV491 E2163 ECC82
6CD6GBeam Tetrode1952IO
1B3GTEHT Rectifier1946IO1G3GTA 1Z7S CV1830