This circuit was found in a 1967 RCA manual. The transistors are of the time. The adjustment is made to read 7.15 V on the charged battery and the charging current is 3.2 A.
Suggested by a 1965 Electronic Design, this circuit has a gain of 15 dB at 45 MHz and can be...
This circuit was found in an English magazine from 1979. The magazine no longer exists, but the...
This direct coupled amplifier using 3 transistors and low voltage power was found in the April 1961...