Found in EEE documentation, this circuit can have the duration and frequency adjusted separately. SCRs can be modern equivalent types.
Found on a Radio Electronics this 80's circuit uses two common SCRs driving lamps. This setting...
This reflex receiver was obtained from a 1963 documentation. The transistors are germanium, and...
The maximum current of this circuit is 1 A. The circuit is from Motorola Linear Interface ICs from...