This circuit uses only transistors and was found in a 2003 documentation. Transistor 2N3055 must be mounted on a heat sink and the voltage is set to R10.
The frequency of this circuit depends on the crystal. The transistor supports a modern equivalent. We...
We found this circuit in an old documentation. The operational amplifier used is uncommon today, but...
This configuration, which uses a transistorized circuit in the feedback, provides a logarithmic response...