The speed indication of this circuit is made on an analog instrument. The circuit is used to count pulses (rpm) and was found in April 1976 Radio Electronics magazine.
This circuit is from an old American documentation. The circuit generates 20 to 200 ms steps for...
This inverter bistable buffer circuit was obtained in a Hands On of the 90's. Next to the circuit we...
This circuit was obtained from a 1965 Radio Electronics. The semiconductors used admit modern...