Found in a 1967 Electronic Design, this circuit can detect pulses as narrow as 0.2 us. Active components can be replaced with modern equivalents.
We found this circuit in a Radio Electronics from January 1967. The SCR is already the C106, which...
We found this circuit in a 1975 technical publication. Its purpose is to compress the dynamic...
This circuit is suggested by Texas Instruments allowing the modulation of a transmitter from TTL...