In this receiver the is formed by 80 turns of wire 28 or close in a ferrite rod. The handset is low impedance and powered by a standard battery.
This circuit is from a publication from 1980 and can be used as an amplifier to supply loads up to...
This adjustable source from 2 to 15 V uses transistors from the 60's, as indicated in the...
This circuit causes the neon lamps in a set to flash randomly. Capacitors determine the speed of...