The integrated circuit used in this Electronics Now amplifier is not very common today. However, this configuration can be found in commercial equipment of the time.
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...