Echophone S4 Schematic purchase

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

Friday 19/4/2024 17:08
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
Echophone S4 (Gernsback : Radio 2 P: 222)
£1.80 (~ $2.20 or €2.10)
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The schematic will be taken from Gernsback-Manual-1936

Gernsback-Manual-1936 preview

Echophone S4 Specification spec data sheet

These notes are automatically scraped from Google, Bing, Yahoo, Yandex
by an Artificially (not so) Intelligent algorithm
CountryUSA
ManufacturerEchophone Radio, Inc. - see also (The) Radio Shop or Hallicrafters Inc.
Brand Ufonic
ModelS-4 - Echophone Radio, Inc. - see
Year: 1930Broadcast Receiver
Valves6: 224 224 224 227 245 280
TechnologyTRF without regeneration; Screengrid 1926-1935
Tuned Circuits3 AM circuit(s)
Wave BandsBroadcast only (MW).
Power TypeAC / 115; 125 Volt
Dimensions14 x 17 x 7 inch / 356 x 432 x 178 mm
SourceBook: Rider Vol: 1 Page: 4
SourceMyFile: Echophone-S4-1931.Gernsback.Radio.pdf
SourceBook: Gernsback Vol: 2 Page: 222