Columbia 931 Schematic purchase

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

Friday 19/4/2024 14:44
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 931 (Rider : - 1 P: 7)
£1.80 (~ $2.20 or €2.10)
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The schematic will be taken from Rider-Vol 01-1933

Rider-Vol 01-1933 preview

Columbia 931 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
Model931 - Columbia Phonograph, American
Year: 1930Category: Sound/Video Recorder and/or Player
Valves3: UX226 UX250 UX281
TechnologyAudio-Amplification
Wave Bands- without
DetailsRecord Player
Power typeAC / 110 Volt
SourceBook: gernsback Vol: 1 Page: 120
SourceBook: rider Vol: 1 Page: 7