This sensitive Japanese mid-wave receiver from the 1960s has an output power of 45 mW and is powered by 3 batteries (4.5 V). The circuit is superheterodyne with an IF of 455 kHz.
Offset Adjustment on an Amplifier with the LM139 (CB14245E) In the figure we have the way of...
This circuit compares the voltages of the two inputs giving as output 0 or 1 according to the...
This circuit was suggested by Signetics in 1980s documentation. The circuit makes use of the...