Columbia C90B Schematic purchase

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

Thursday 25/4/2024 9:37
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 C90B (Gernsback : Radio 2 P: 210C)
£1.80 (~ $2.20 or €2.10)
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The schematic will be taken from Gernsback-Manual-1936

Gernsback-Manual-1936 preview

Columbia C90B Specification spec data sheet

These notes are automatically scraped from Google, Bing, Yahoo, Yandex
by an Artificially (not so) Intelligent algorithm
so they might not pertain to the correct model! (confidence level=85.71%)
CountryUSA
ManufacturerColumbia Phonograph, American / Volta Graphophone Company; USA
Alternative Name American Graphophone || Columbia Recording
ModelC-90 - Columbia Phonograph, American
Year: 1932Category: Broadcast Receiver
Valves11: 58S 56 58S 58S 4S 57S 57S 58S 47 47 82
TechnologySuperhet with RF-stage; IF 175 kHz
Tuned Circuits6 AM circuit(s)
Wave BandsBroadcast only (MW).
Power typeAC
SourceBook: rider Vol: 3 Page: 5&7