This sensitive 5-band circuit was found in a September 1995 issue of Electronics Now magazine. The headphones, for greater sensitivity, should be high impedance.
This simple 80's CMOS game was found in an English magazine of the time. It appears elsewhere on this...
This nuclear radiation detector was found in a 1977 FET publication. The circuit requires a 900 V...
This circuit limits the intensity of the output signal to a level given by the zener diodes. The...