We found this cable tester in a Popular Electronics from the 90s. The circuit uses a connector according to the cable to be tested. Adaptations can be made for different types of cables.
This circuit uses a resonant reed relay to recognize the frequency of an input signal. Adaptations...
May 2017 - Vishay's new AC0x..CS series safety wirewound resistors can now be obtained from Mouser...
It can be obtained from Mouser Electronics, sensors (receivers) transmitters and benders for...