This circuit was found in an 80's General Electric documentation. The circuit uses uncommon components today like the PUT. Unijunction admits equivalent.
This circuit was found in a Popular Electronics of the 90s. The resistor R4 determines the load...
This transmitter emits signals in the FM range, reaching a few meters away. The modulation...
This 80's circuit uses germanium transistors like the AC125, AC151, AC163, 2N506 and others to...