Columbia 621 Schematic purchase

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

Friday 15/5/2026 20:22
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 621 (Trader : Radio 39 P: pdf)
£1.80 (~ $2.20 or €2.10)
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Trader-0039-1935 preview

Columbia 621 Specification spec data sheet

These notes are automatically scraped from Google, Bing, Yahoo, Yandex
by an Artificially (not so) Intelligent algorithm
CountryUSA
ManufacturerCBS-Columbia Inc.; New York, NY
Alternative Name CBS Electronics || Columbia Phonographs || Columbia Records
Model3T621 Chassis = 1611 - CBS-Columbia Inc.; New York,
Year: 1935TV
Valves16: 4BQ7A 5AT8 3CB6 3CB6 3CB6 12BY7A 3AU6 3BN6 12L6GT 7AU7 12BH7A 6SN7GT 12CU6 12AX4GT 1B3GT 21AUP4A
TechnologySuperhet with RF-stage
Wave BandsWave Bands given in the notes.
Power TypeAC / 60 cycles, 117V = 110 -120 Volt
SourceBook: Trader Vol: 39.pdf
SourceBook: Trader Vol: 577.pdf