The Lockheed Martin AN / ALR - 56M radar warning receiver is a superheterodyne receiver operating in the 2-20GHz band.
Jumping from radio to TV, the first pre-World War II RCA television receivers were superheterodynes with a picture IF of 12.75 MHz.
The public was not so receptive since superheterodynes were complicated devices requiring many controls, as well as lots of tubes and batteries.
When I began collecting pre-1930 superheterodynes , I had a lot of trouble finding information about them and their schematics.
The German superheterodynes were always very well screened and featured extensive selectivity before the mixer with three or more tuned circuits.
Its quality stood behind the commercial superheterodynes which were produced for marine and navy applications ten years ago.
He dabbled in radio sales back when they were dubbed superheterodynes , and he brought some of the earliest electric household appliances to San Antonio buyers.
Both radios are similar in design - five - tube superheterodynes with both broadcast and shortwave tuning.
It is a T.R.F. (Tuned Radio Frequency) receiver, which is a little unusual as the other receivers in the CR series are superheterodynes .
RF signal generators began to be available for radio servicing about the time that more complex ac radios appeared and superheterodynes became more common.