This very low power amplifier is designed by Amperex for hearing aids. It is based on TAA370 which is not an integrated circuit that can be found today.
This PUT trigger circuit for SCR was found in 1967 General Electric documentation. The...
With a 22 V symmetrical power supply this amplifier provides 15 W of output power with excellent...
With this circuit it is possible to compare the gain of transistors to obtain a matched pair (of...