This is a very common circuit in the days of xenon flashes for cameras. This is from a Radio Electronics magazine from November 1965. It uses an SCR and has manual triggering.
Closing and opening S1 for a moment to charge the capacitor, the transistor conducts the load. The...
The basic component of this circuit is a general-purpose SCR. The voltage is according to the...
This simple preamplifier was published in Radio Electronics magazine in February 1958. The battery...