BF Goodrich R421 Schematic purchase

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

Saturday 27/4/2024 18:55
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
BF Goodrich R421 (Rider : BF Goodrich 12 P: 2 15 7)
£1.80 (~ $2.20 or €2.10)
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The schematic will be taken from Rider-Vol 12-1941

Rider-Vol 12-1941 preview

BF Goodrich R421 Specification spec data sheet

These notes are automatically scraped from Google, Bing, Yahoo, Yandex
by an Artificially (not so) Intelligent algorithm
CountryUSA
ManufacturerGoodrich, B.F.; Akron,Ohio
Brand Mantola
ModelModel R-421 - Goodrich, B.F.; Akron,Ohio
Year: 1940Category: Broadcast Receiver
Valves6: 6D8G 6S7G 6T7G 30 30 19
TechnologySuperhet IF 456 kHz
Tuned Circuits6 AM circuit(s)
Wave BandsBroadcast, Short Wave(s) and Police.
Power typeStorage Battery for all (e.g. for car radios and amateur radios) / 6 Volt
SourceMyFile: bf goodrich_mantola-r399_r400_r404_r405_r419_r421_r424-1941.rider.radio.pdf
SourceBook: rider Vol: 12 Page: 2&15&7