This bench circuit was found in Radio Electronics magazine from June 1958. The circuit does not have an external power supply. The circuit generates signals from 12 Hz to 180 kHz in 4 bands.
What this circuit does is to stretch a pulse, increasing its duration. The integrated circuit is...
This circuit is designed to measure very weak currents, in the order of picoamperes. We found it...
Found in an American documentation from the 90s, this circuit uses small low voltage lamps (6 to...