Columbia 120B Schematic purchase

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

Friday 19/4/2024 20:14
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 120B (Rider : Columbia 3 P: 11)
£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 120B 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
ModelModel 120-B - Columbia Phonograph, American
Year: 1932Category: Broadcast Receiver
Valves6: 32 30 32 32 32 33
TechnologySuperhet with RF-stage; IF 175 kHz; 2 AF stage(s); Screengrid 1926-1935
Tuned Circuits6 AM circuit(s)
Wave BandsBroadcast only (MW).
Power typeBatteries / 2 & 135 & 22,5 Volt
SourceBook: rider Vol: 3 Page: 11