Sparton 931 Schematic purchase

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

Friday 26/4/2024 23:50
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
Sparton 931 (RSS : Radio 1 P: 71)
£1.80 (~ $2.20 or €2.10)
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Sparton 931 Specification spec data sheet

These notes are automatically scraped from Google, Bing, Yahoo, Yandex
by an Artificially (not so) Intelligent algorithm
CountryUSA
ManufacturerSparks-Withington Co., (Sparton); Jackson, Michigan
ModelModel Sparton 931AC Equasonne - Sparks-Withington Co., Sparton
Year: 1929-1930Category: Broadcast Receiver
Valves9: 485_Sparton 485_Sparton 485_Sparton 485_Sparton 485_Sparton 485_Sparton 482-B 482-B 280
TechnologyTRF without regeneration
Tuned Circuits4 AM circuit(s)
Wave BandsBroadcast only (MW).
Power typeAC / 100-130 Volt
Initial Price179.00 $
SourceBook: beitman Vol: 1926 Page: 189
SourceBook: gernsback Vol: 1 Page: 280b
SourceBook: rider Vol: 1 Page: 22
SourceBook: gernsback Vol: 1 Page: 277&300(v3)
SourceBook: rider Vol: 1 Page: 22