The circuit is from a Radio Electronics magazine from October 1987. The Triac must be equipped with a heatsink and the transistors are general purpose.
This 80's circuit makes use of a photomultiplier valve. The circuit also requires a scintillation...
This stereo meter-indicator was found in the August 1971 issue of Radio Electronics magazine. The...
With the values of the components indicated, the circuit generates a 1 kHz signal. The power...