Found in a 90s R-E Experimenters Handbook, this circuit amplifies signals from 100 Hz to 3 MHz. The circuit has a gain of approximately 30 dB. Bipolar transistors are general-purpose types.
We found this guitar effects circuit in a 1997 documentation. As the components used are still...
This circuit, which can act as a shield, was found in a 1969 documentation. The circuit uses...
This circuit was found in an 80's Electronic Design. The frequency depends on the crystal and the...