This logic tester circuit was published in the November 1980 issue of Radio Electronics magazine. The circuit works with both TTL and CMOS logic and has several selectable functions.
The current drained by this circuit, from a 1976 documentation, is 3 mA and the cut-off frequency is...
This circuit for 12 V relays was found in the July 1992 Radio Electronics magazine. The circuit is set...
This circuit generates high pulses from a sinusoidal input, using SCRs for this purpose. The...