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Type of plug for backup power and hole values in the housing

Posted: Mon Nov 25, 2019 10:55 am
by batareika
On the oscilloscope board, you can (optionally) install a 9 volt power connector. Since I'm going to use this to power the transistor tester, I want to ask:
- what type of plug is needed for this connector (see photo);
- What is the best way to make a hole in the oscilloscope body for this? Maybe there are overall dimensions? Or can someone measure them on another version of the constructor? Thanks.