This 555 IC circuit was found in the November 1994 issue of Radio Electronics magazine. The circuit can be powered by voltages from 12 to 24 V.
We found this amplifier circuit for inductive audio pickups in a documentation from the 70s. The...
The presented circuit uses two old germanium transistors. We found this configuration in a...
This high stability circuit was found in old documentation. The operational can be a modern...