We found this circuit in a 1964 Electronic Design. It provides 0.5 V signals from 4 kHz subcarriers. Transistors are from the era.
We found this circuit in an old documentation. It has a thermally compensated voltage reference. The...
Suggested by a Popular Electronics, this small amplifier that has a detector to follow RF...
The presented circuit generates a pulse whose delay in relation to the input depends on RC. These...