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AP-4

AP-4; Atlantic-Pacific A-P (ID = 1905565) Radio AP-4; Atlantic-Pacific A-P (ID = 1905567) Radio
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AP-4; Atlantic-Pacific A-P (ID = 1905565) Radio
Atlantic-Pacific A-P: AP-4 [Radio] ID = 1905565 1400x1653
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For model AP-4, Atlantic-Pacific (A-P) Radio Supplies Co, Inc.;San Francisco:
July 1922, Radio magazine advertisement page 98 (rear cover)
 
Country:  United States of America (USA)
Manufacturer / Brand:  Atlantic-Pacific (A-P) Radio Supplies Co, Inc.;San Francisco
alternative name
 
Oard Radio Laboratories; Stockton (CA)
Year: 1922 Category: Broadcast Receiver - or past WW2 Tuner
Valves / Tubes 1:
Main principle TRF with regeneration
Wave bands Broadcast only (MW).
Details
Power type and voltage Storage and/or dry batteries
Loudspeaker - For headphones or amp.
Power out
from Radiomuseum.org Model: AP-4 - Atlantic-Pacific A-P Radio
Material Wooden case
Shape Tablemodel, Box - most often with Lid (NOT slant panel).
Notes

Two dial primary tuning.

Wave length tuning range 175 to 500 meters. 

Price in first year of sale 45.00 $
External source of data Ernst Erb
Source of data Radio Collector`s Guide 1921-1932
Mentioned in July 1922, Radio magazine advertisement page 98 (rear cover)


All listed radios etc. from Atlantic-Pacific (A-P) Radio Supplies Co, Inc.;San Francisco
Here you find 16 models, 14 with images and 0 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.



  
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