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78B Ch= 77B

78B Ch= 77B; Patterson Radio Corp (ID = 649842) Radio
78B Ch= 77B; Patterson Radio Corp (ID = 1630352) Radio 78B Ch= 77B; Patterson Radio Corp (ID = 1630353) Radio
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78B Ch= 77B; Patterson Radio Corp (ID = 1630352) Radio
Patterson Radio Corp: 78B Ch= 77B [Radio] ID = 1630352 725x933
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For model 78B Ch= 77B, Patterson Radio Corp.; Los Angeles
 
Country:  United States of America (USA)
Manufacturer / Brand:  Patterson Radio Corp.; Los Angeles
Year: 1937 Category: Broadcast Receiver - or past WW2 Tuner
Valves / Tubes 7: 6S7 6A8 6S7 6S7 6G5 6S8 6K6
Main principle Superhet with RF-stage; ZF/IF 456 kHz; 2 AF stage(s)
Tuned circuits 9 AM circuit(s)
Wave bands Broadcast plus more than 2 Short Wave bands.
Details
Power type and voltage Storage and/or dry batteries
Loudspeaker Permanent Magnet Dynamic (PDyn) Loudspeaker (moving coil) / Ø 8 inch = 20.3 cm
Power out
from Radiomuseum.org Model: 78B Ch= 77B - Patterson Radio Corp.; Los
Material Wooden case
Shape Tablemodel, Tombstone = decorative upright, not cathedral but can have rounded edges.
Dimensions (WHD) 16 x 18 x 10 inch / 406 x 457 x 254 mm
Notes

Tuning eye. Built-in vibrator. It has three bands covering 15 to 550 meters. It was advertised as being "climate proof," with all transformers, coils, and condensers (capacitors) vacuum impregnated. A high fidelity switch broadens the response curves of the intermediate frequency transformers.

Price in first year of sale 79.50 USD
External source of data Ernst Erb
Circuit diagram reference Rider's Perpetual, Volume 9 = 1938 and before
Mentioned in Rider's 9-1


All listed radios etc. from Patterson Radio Corp.; Los Angeles
Here you find 111 models, 43 with images and 66 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.



  
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