Circuits similar to this can be found in this section. This is from 1967 General Electric documentation. The main SCR must be fitted with a heat sink.
This TTL circuit generates an 18 MHz signal modulated at 300 Hz. Its main use is as a test...
This transformerless low-current power supply circuit was found in the August 1998 issue of...
In the figure we have the way to obtain an operational amplifier with FETs at the input, using a...