Found in a 1965 Radio Shack documentation this oscillator can be used with modern general purpose transistors like the BC558. The transformer is the output type for transistor radios.
This circuit makes use of a thermometric sensor that heats or cools according to a current of air....
This circuit sends signals to a shortwave radio (range 3 to 7 MHz) at a distance of a few tens of...
The VCC PML50 Panel Mount LED Indicator can now be purchased from Mouser Electronics. The new...