This circuit is intended to switch high frequency antennas using common diodes. The circuit is from an 80's documentation appearing in other versions in this same section of the site.
This power supply can supply symmetrical voltages of 5, 6, 9 and 12 V according to the xx of the...
We found this circuit with SCRs and unijunction in a Radio Electronics magazine from June 1969. The...
This timer triggers high-powered loads powered by the power grid. Times are given by C1 and the...