KolsterBrandes K21 Schematic purchase

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

Thursday 18/4/2024 18:06
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
KolsterBrandes K21 (File : 0 KolsterBrandes_ITT-K21_K23_K28-1933.Rider
£1.80 (~ $2.20 or €2.10)
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KolsterBrandes K21 Specification spec data sheet

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by an Artificially (not so) Intelligent algorithm
CountryUSA
ManufacturerKolster; USA
Brand International
ModelModel K-21 - Kolster; USA
Year: 1928Category: Broadcast Receiver
Valves8: 26 26 26 26 27 26 71A 80
TechnologyTRF
Tuned Circuits4 AM circuit(s)
Wave BandsBroadcast only (MW).
Power typeAC / 110 Volt
Initial Price160.00 $
SourceBook: gernsback Vol: 1 Page: 218&218a
SourceBook: rider Vol: 1 Page: 4
SourceBook: gernsback Vol: 3 Page: 299
SourceMyFile: kolsterbrandes_itt-k21_k23_k28-1933.rider.radio.pdf