General Electric suggests this circuit in an 80's documentation. The circuit makes use of PUTs that are not common components today. Note the timing components that may change.
The circuit shown is from Motorola's Linear Interface ICs from 1992. The circuit uses a...
This nice function generator circuit with the XR2206 was found in the May 1977 Radio Electronics...
This voltage inverter allows you to raise the voltage of a battery to values as high as 140 V...