Found in a 1967 Ferranti documentation, this regulator makes use of an operational amplifier of the time. The output current is only 5 mA.
Using the LM170 integrated circuit, this circuit was found in the May 1970 Radio Electronics...
The purpose of this circuit is to increase the selectivity of receivers with ferrite antennas. The circuit...
This circuit found in Hands On Electronics only connects a load, which in this case is an LED. The...