This PLL with operational amplifiers was found in 1969 documentation. The configuration can be adapted to use modern components. The circuit has a gain of 15 V / V and can operate with 10 kHz signals.
We found this circuit in an American documentation from the 90's. The circuit makes use of general...
This circuit provides a pulse train of 4 MHz or at another frequency determined by the crystal during...
This effect for guitar was found in an English magazine from 1978. The transistors can be the most...