We found this circuit in a 1969 General Electric documentation. The circuit uses transistors of the time and the diodes in the dotted board must be mounted on the output transistor heatsinks.
We found this circuit in the 2005 Linear Technology component manual. The circuit can be used as a...
This circuit was found in an 80's Electronic Design. The frequency depends on the crystal and the...
This circuit appears in other configurations on this site. Its purpose is to operate a small water...