This circuit of the 70's uses transistors of the time. The circuit can amplify signals from 10 Hz to 100 kHz and modern equivalent components can be used. The circuit is from Ferranti.
This circuit was found in a documentation from the 50's. The transistor is made of germanium and...
Here we show a configuration in which we have a control voltage applied from a voltage divider, which...
March 2017 - The new Texas Dual ISO762xxL digital isolators are available at Mouser Electronics...