This circuit was found in a Philips documentation from 1970. The components are of the time, difficult to find today, but the configuration can be adapted to use modern equivalent components.
The sensor of this circuit is an NTC of 20 to 50 k resistance at room temperature. The circuit is from a...
This different power control circuit with SCR was obtained from a 1967 magazine. The SCR can be...
Mouser Electronics is providing the MGA-622P8 low noise amplifier for frequencies from 1.5 to 2.7...