This TTL circuit was found in the December 1990 issue of Radio Electronics magazine. The circuit has a 50% duty cycle. It must be powered by 5 V.
We found this circuit in an old American manual. The formulas allow the gain to be calculated as a...
This circuit was obtained in a 90s documentation from Analog Devices. The sensitivity is in the...
This high input impedance and high output current circuit was found in 702 Motorola documentation. The...