Columbia 902 Schematic purchase

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Schematics sent by Email £1.80 (~ $2.20 or €2.10)

Saturday 9/5/2026 15:31
I am away until Thursday evening 21/12/2023 I cannot send any schematics marked TO SCAN until home, pre-scanned ones will be sent probably in the evening UK time
Columbia 902 (Gernsback : Gram 1 P: 121)
£1.80 (~ $2.20 or €2.10)
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The schematic will be taken from Gernsback-Manual-1930

Gernsback-Manual-1930 preview

Columbia 902 Specification spec data sheet

These notes are automatically scraped from Google, Bing, Yahoo, Yandex
by an Artificially (not so) Intelligent algorithm
CountryUSA
ManufacturerColumbia Phonograph, American / Volta Graphophone Company; USA
Alternative Name American Graphophone || Columbia Recording
Model902 - Columbia Phonograph, American
Year: 1930Category: Sound/Video Recorder and/or Player
Valves6: C327 C327 CX350 CX350 CX381 CX381
TechnologyAudio-Amplification
Wave Bands- without
DetailsRecord Player (perh.Changer)
Power typeAC / 100-110; 110-120 Volt
SourceBook: gernsback Vol: 1 Page: 121
SourceBook: rider Vol: 1 Page: 5