This 80's circuit uses an audio amplifier to obtain a symmetrical source from a single source. The maximum current is on the order of 1.3 A and the input voltage must not exceed 20 V.
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,...