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A-P_Transmitter

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ID = 28990
       
Country:
United States of America (USA)
Brand: Moorhead Laboratories (Pacific); San Francisco
Tube type:  Triode, vacuum 
Identical to A-P_Transmitter
First year Dec.1920 Saga of the Vacuumtube, Tyne page 176, 177

Base UV-Base (4 Pins+Bayonet, USA 1914 WE)
Filament
Description Priced at $7.50 in Dec 1921 from Atlantic Pacific Radio Supplies Co. 
Text in other languages (may differ)
Literature Saga of the Vacuumtube, Tyne   page 176, 177
Radio News   Advt Dec 1921 p555
 
uv~~89.png
A-P_Transmitter: Fin Stewart
Fin Stewart

 

Usage in Models 3= 1921

Quantity of Models at Radiomuseum.org with this tube (valve, valves, valvola, valvole, válvula, lampe):3

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