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+/- 15 V Voltage reference point
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jurekprzezdziecki



Joined: Mar 22, 2016
Posts: 68
Location: warsaw

PostPosted: Thu Dec 12, 2019 8:55 am    Post subject: +/- 15 V Voltage reference point Reply with quote  Mark this post and the followings unread

Hello,

I need to stabilise my Tune and Fine-Tuning potentiometers with a stable voltage reference point. These pots are connected to voltage supply. I can't find any solution. Anyone can advise me a good solution?

Thanks Jurek
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flagada



Joined: Dec 15, 2016
Posts: 39
Location: Amsterdam

PostPosted: Thu Dec 12, 2019 11:46 am    Post subject: Reply with quote  Mark this post and the followings unread

You can find some information here:
https://www.muffwiggler.com/forum/topic-122350.html&highlight=
and here:
https://www.muffwiggler.com/forum/topic-135837.html&highlight=
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ixtern



Joined: Jun 25, 2018
Posts: 145
Location: Poland

PostPosted: Fri Dec 13, 2019 11:00 am    Post subject: Re: +/- 15 V Voltage reference point Reply with quote  Mark this post and the followings unread

jurekprzezdziecki wrote:
Hello,

I need to stabilise my Tune and Fine-Tuning potentiometers with a stable voltage reference point. These pots are connected to voltage supply. I can't find any solution. Anyone can advise me a good solution?

Thanks Jurek

Look at my modding of TH VCO Maximus (part3):
http://electro-music.com/forum/topic-70913.html

I've also modded TH VCO 4046:
http://electro-music.com/forum/topic-71302.html

In both cases reference voltages were added for the pitch pots.

Other -+5V source of reference voltages for pitch pots below.

And last but not least my +10V/-5V reference voltages for VCO on the bottom.


5Vref.png
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10_5V_ref.png
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