This configuration can be applied to other operational amplifiers to increase the current capacity. The circuit is from the 80s. The transistors used are from that time.
We found this circuit with unijunction transistor in an old publication from the 80's. The circuit...
This simple emitter can be used in animal conditioning, to scare animals and even in biology...
Found in an older Radio Craft, this circuit covers the aerial band from 118 to 136 MHz. No...