This switched or switched regulator was suggested by Texas Instruments in one of its application manuals. The circuit converts 5 V input to 12 V output with a current up to 75 mA.
This circuit is from a 1978 publication. It can be assembled with BC548 transistors for NPN and...
Wired to the output of any amplifier this circuit makes an incandescent lamp flash according the...
Other operational amplifiers in the series, such as the MC34072, MC34074, MC35071, MC35072,...