We found this tube receiver in a 1950s Japanese publication. The circuit uses 5 tubes and has an RF amplifier stage for greater sensitivity. The power supply is not shown on the circuit.
This 1.5 A circuit is from the LM117 manual. The LM350 can be used for higher current, and the...
Using a CA3130 and a power transistor, this circuit can deliver a current of up to 500 mA with the...
This circuit was found in RCA and General Electric documentation from the 1980s. The circuit has...