1-quadrant logarithmic converter (CB7333E)

This temperature compensated circuit was found in a Popular Electronics from the 90s. Integrated circuits and transistors are from that time.

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Lights on and ice alarm (CB9525E)
Found in a 90s American documentation, this circuit that was used in cars of the time, detects low...
Kinescope Rejuvenator (CB4405E)
Kinescopes are no longer found on modern video monitors and televisions. However if the reader has...
Tactical Switches KXT Series
June 2017 - The new touch switches C & K KXT series can now be obtained from Mouser Electronics. These...