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128 Ch= 127

128 Ch= 127; Patterson Radio Corp (ID = 1630565) Radio
128 Ch= 127; Patterson Radio Corp (ID = 1630566) Radio
128 Ch= 127; Patterson Radio Corp (ID = 541357) Radio 128 Ch= 127; Patterson Radio Corp (ID = 1630279) Radio
128 Ch= 127; Patterson Radio Corp (ID = 1630280) Radio
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128 Ch= 127; Patterson Radio Corp (ID = 541357) Radio
Patterson Radio Corp: 128 Ch= 127 [Radio] ID = 541357 323x380
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For model 128 Ch= 127, Patterson Radio Corp.; Los Angeles:
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Country:  United States of America (USA)
Manufacturer / Brand:  Patterson Radio Corp.; Los Angeles
Year: 1937 Category: Broadcast Receiver - or past WW2 Tuner
Valves / Tubes 12: 6K7 6K7 6L7 6K7 6G5 6K7 6K7 6Q7 6C5 6F6 6F6 5X4
Main principle Superhet with RF-stage; ZF/IF 465 kHz; 2 AF stage(s)
Tuned circuits 10 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 12 inch = 30.5 cm
Power out 10 W (unknown quality)
from Model: 128 Ch= 127 - Patterson Radio Corp.; Los
Material Wooden case
Shape Tablemodel, high profile (upright - NOT Cathedral nor decorative).
Dimensions (WHD) 17 x 18 x 11 inch / 432 x 457 x 279 mm

It has two RF amplifier stages, covers 12 to 550 meters in four bands, plus an optional European or Weather Band covering 750 to 2300 meters, a tuning eye tube, a Beat Frequency Oscillator (BFO), push-pull audio amplifier, 9KC separation, and a high fidelity switch to broaden the response curves of the intermediate frequncy transformers.  The chasss is "climate proof" with all transformers, oils, and condensers (capacitors) vacuum impregnated.   

Price in first year of sale 99.50 USD
External source of data Ernst Erb
Circuit diagram reference Rider's Perpetual, Volume 8 = 1937 and before
Mentioned in Rider's 8-7, 8-8

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.