We found this circuit in an American documentation from 1969. The circuit works with the polarized transistor in reverse in the avalanche mode.
With this circuit it is possible to obtain an input resistance of 100Gohms for a multimeter, with...
A delay of a few seconds to a few tens of seconds can be achieved with this circuit found in a...
This bridge circuit is designed for 8-ohm speakers delivering a few watts of power. The circuit is from...