Infrared detector (CB20976E)

This simple detector was found in Popular Electronics from the 1990s. Both the phototransistor and the PNP transistor admit many equivalents.

Electric Photosensor (CB17154E)
This circuit can be used in traffic alarm systems. The relay trips when the light falling on the...
Unit gain high pass filter (CB7573E)
This filter was found in documentation from the 90s. The cutoff frequency is 2900 Hz. Changes can be...
Series MT Micro Switches
June 2017 - New Honeywell MT MICROSWITCH Series can be ordered from Mouser Electronics for...