This instrumentation circuit was found in the September 1989 Radio Electronics magazine. The circuit uses an analog indicator and the power supply must be symmetrical.
This unusual circuit, from a documentation for radio amateurs from the 70s, can oscillate in other...
With this regulator we can have currents of up to 4 amps with 5V at the output. The transistor can be...
This circuit is from Mullard documentation from 1969. Transistors support current equivalents. Output...