The circuit we show is part of an article that taught its complete assembly. The article is from the Radio Electronics magazine of August 1983. The thermometer was indicated for automotive applications.
The purpose of this circuit is to eliminate RF picked up by a turntable. The circuit is from a...
This circuit synchronized by the power grid can be used as a shield. We found it in an 80's...
This is a very simple version in which we simply fit the jacks, plugs with red and green LEDs,...