This circuit for equipment adjustment and diagnostics was found in a Mullard transistors manual from 1960. Information about the transformers is given with the diagram.
This circuit is from old documentation but uses components still common in our market. The circuit...
August 2016 - It can be obtained from Mouser Electronics the battery protectors series bq7790x of...
This interesting touch dimmer was obtained in a 1993 publication, basically consisting of a...