This circuit was found in Texas Instruments documentation from 1968. The transistors are from that time, admitting modern equivalents. The response ranges is from 20 to 20 000 Hz.
The coil of this analog composite video signal transmitter is formed by 6 or 7 splashes of 26 or...
This blocking oscillator was found in a publication from the 50's. The coils determine the...
I found this circuit in an English publication from 1989. This configuration can be mounted with...