This circuit was suggested by an article in the April 1988 Radio Electronics magazine. The flip-flop is of the JK type.
This amplifier with an OTA has a gain of 40 dB. The power supply must be symmetrical. Found in...
This circuit was obtained from a Popular Electronics of the 80's. It is set to a certain pulse...
In recovering vinyl media with turntables with magnetic capsules the circuit below can be useful. It...