This circuit was obtained from a Philips documentation from 1970. It can be built on modern operational amplifiers.
This circuit is from a 1975 Motorola manual. The FET can be the BF245 and the output voltage...
This circuit for shunt motors was found in an American 1980s documentation. The SCR should be rated...
March 2017 - The new ERB-RD, ERB-RE and ERB-RG fuses from Panasonic's Micro Chip Fuses can now be...