Columbia C4 Schematic purchase

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

Friday 15/5/2026 20:43
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 C4 (Rider : - 1 P: 2)
£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 C4 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
ModelC-4 - Columbia Phonograph, American
Year: 1930Broadcast Receiver
Valves9: 26 26 26 26 27 26 71A 80 81
TechnologyTRF
Tuned Circuits4 AM circuit(s)
Wave BandsBroadcast only (MW).
Power TypeAC / 110 Volt
Dimensions23 x 47 x 16 inch / 584 x 1194 x 406 mm
Net Weight116 lb (116 lb 0 oz) / 52.664 kg
Initial Price285.00 $
SourceBook: Rider Vol: 1 Page: 2