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Country:  United States of America (USA)
Manufacturer / Brand:  Collins Radio Company; Cedar Rapids (IA)
Year: 1949 Category: Commercial Receiver (may include amateur bands)
Valves / Tubes 16: 6AK5 6BE6 6BE6 6BA6 6BA6 6SJ7 6BA6 6BA6 6BA6 12AX7 12AX7 12AX7 6AQ5 6BA6 6BE6 5V4
Main principle Superhet, double/triple conversion; ZF/IF 2500/500 kHz
Wave bands Wave Bands given in the notes.
Power type and voltage Alternating Current supply (AC) / 115 Volt
Loudspeaker - For headphones or amp.
Power out 1.5 W (unknown quality)
from Model: 51J-1 - Collins Radio Company; Cedar
Material Metal case
Shape Rack
Dimensions (WHD) 19 x 13 x 10.5 inch / 483 x 330 x 267 mm
Notes This is common for the 51J-1 and 51J-2, which both show on their faceplate only 51J without suffix. The difference is minor: the 51J-2 has an additional toggle switch left of the meter.
0.5 - 30 MHz, AM/CW/MCW.
Price in first year of sale 875.00 $
Source of data Communications Receivers
Mentioned in The Pocket Guide to Collins Amateur Radio Equipment 1946 to 1980
Literature/Schematics (1) Shortwave Receivers - Past & Present (3rd ed.)

Model page created by Vitor Oliveira. See "Data change" for further contributors.

All listed radios etc. from Collins Radio Company; Cedar Rapids (IA)
Here you find 94 models, 69 with images and 33 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.