This multiple cable test sequential circuit was found in Radio Electronics. The connector must be according to the type of cable to be tested.
This circuit was found in a 1967 RCA manual. The transistors are of the time. The adjustment is made to...
This flip-flop using two bipolar transistor was found in a publication of the year 1968. The...
Suggested to power the previous circuit, this power supply was found in the December 1990 issue of...