This circuit was found in a 90s Radio Electronics. MOSFETs must have excellent heat sinks and heat and the board layout carefully planned to withstand high currents.
This circuit generates a pulse of duration determined by the capacitor when an object interrupts the...
This “people detector” with pyroelectric sensor was found in the April 1991 issue of Radio...
This wideband circuit with the 4046 PLL was found in the December 1989 Radio Electronics magazine. The...