This circuit uses a diode as a radiation sensor. The operational ones are old because the publication is from the 80's, but modern low voltage equivalents can be tested.
May 2017 - This new Ricoh 4 A current device is now available from Mouser Electronics. The device...
The purpose of this circuit is to disconnect the battery in case of an excessive charge current,...
This circuit produces signals that depend on the input control voltage. It is a Voltage Controlled...