Need help with grounded mounting holes on the CEM3340 VCO

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Hello!

I’m a complete beginner at building circuits and I have a question.

I’m currently building the CEM3340 VCO with the PWM mod and I have no idea where to put the mouting holes and if they should be grounded or not. If they should be grounded, how do I make sure that they are?

Would be extremly happy for some answers.

EDIT: I didn’t realize that the stripboard connections where horizontal and if I drill mounting holes on the edges of the stripboard, the circuit isn’t affected.

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On stripboard?

Physical mounting holes?

There is no harm in them being grounded, just wire them to any circuit ground point nearby.

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Yeah, I’m building it on stripboard and the mounting holes I’m talking about is where the M3 bolts should be screwed in place to fix the stripboard against the metal panel.

Thanks for the answer.

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First of all, welcome to the beasts cage :slight_smile:

Did you solder one of the potentiometers onto the board? Then you could attach your panel there. Otherwise you just have to make sure that you don’t short-circuit any copper strips with the screw. or you do it like in the picture, that’s the safest way.

BOHRLOCHERKLÄRUNG
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If you show me a picture of your circuit board I can also tell you where to make a hole.

I hope I understood you correctly and was able to help.

Greetings THOGRE

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Hahaha, thanks man. A pleasure to join you!

My pots while be soldered of board. The stripboard I bought have got alot of room where the screws won’t be connected to the circuit. That is something I just realized. But the question is if I decide to connect ground to if that affects anything.

Thanks for the answer!

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Usually there will be jacks mounted on the panel, and normally the jacks’ sleeve terminals will be connected to circuit board ground, and usually the jacks’ sleeve terminals will have a connection to the metal part of the jacks which contacts the circuit board. There are jacks that have insulated mounts, but most don’t. So usually the panel is automatically grounded via the jacks. You can verify that with a multimeter if you’re not sure.

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Ahh, now I understand you too. So I have not yet connected any of my mounting screws to GND, as analogoutput said, this is not necessary !

Greetings THOGRE