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88 Ch= 87

88 Ch= 87; Patterson Radio Corp (ID = 1630350) Radio 88 Ch= 87; Patterson Radio Corp (ID = 1630351) Radio
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88 Ch= 87; Patterson Radio Corp (ID = 1630350) Radio
Patterson Radio Corp: 88 Ch= 87 [Radio] ID = 1630350 725x933
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For model 88 Ch= 87, 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 8: 6K7 6A6 6K7 6K7 6G5 6Q7 6F6 5X3
Main principle Superhet with RF-stage; ZF/IF 465 kHz; 2 AF stage(s)
Tuned circuits 9 AM circuit(s)
Wave bands Broadcast plus more than 2 Short Wave bands.
Power type and voltage Alternating Current supply (AC) / 110 - 125; 220 - 250 Volt
Loudspeaker Electro Magnetic Dynamic LS (moving-coil with field excitation coil) / Ø 8 inch = 20.3 cm
Power out 4 W (unknown quality)
from Model: 88 Ch= 87 - 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

It has three bands covering 15 to 550 meters, with an optional band covering 750 to 2300 meters. It is equipped with a tuning eye tube. 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.

There is a tube lineup conflict between Riders and a Patterson advertising brochure, with the  Riders showing the rectifier tube as a 4 pin 5X3 while the brochure showing an octal 5Y4G.  Also, the brochure states that all tubes are the new "G" type tubes (6K7G, 6A8G, etc..) while Riders does not show the G tubes in the schematic. The model reflects the Riders tube lineup.

Price in first year of sale 69.50 USD
Literature/Schematics (1) Rider's Perpetual, Volume 8 = 1937 and before (Riders 8-7, 8)

Model page created by Stephen Masek. See "Data change" for further contributors.

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.