Suggested by Radio Electronics from the 90s, this circuit is suitable for NiCAd batteries with a low battery indicator and a charge indicator.
This circuit is suggested by a 1965 General Electric documentation. The triac must be in...
We found this circuit in 1980s documentation. It can be used independently as CW or by exciting a...
This 80's Motorola circuit can generate 100 MHz signals, but they can reach 200 MHz with the...