Tube DIY Asylum Do It Yourself (DIY) paradise for tube and SET project builders.

---

[ Follow Ups ] [ Post Followup ] Thread: [ Display  All  Email ] [ Tube DIY Asylum ]

---

[ Alert Moderator ]

---

RE: Question about Power Supply

Posted by Tre' (P) on May 8, 2016 at 14:22:09

In Reply to: Question about Power Supply posted by Tubenstein on May 8, 2016 at 13:28:48:

Change the voltage divider that is made up of the 470k and the 270k resistors that feed the grid of the control tube.

Wait, that supply makes no sense to me.

Why would anyone want to build a series regulated power supply and then place series resistors (the 6k and the 200k) after the regulator which results in the voltage becoming unregulated again?

If you wanted to change the 300vdc regulated voltage a little either way then you could do what I said above but I don't think you can get it down to 180 regulated.

Edit, I see now that the 150vdc is just the reference voltage to "float" the heaters up.

That's a 300vdc series regulated supply and the 150vdc is not intended to operate the audio circuit. The 300vdc (fully regulated) is intended to operate the audio circuits.

If you need a 180vdc regulated supply to operate audio circuits I don't think this is the supply for you.

Tre'
Have Fun and Enjoy the Music
"Still Working the Problem"

Edits: 05/08/16

This post is made possible by the generous support of people like you and our sponsors:

Signature Sound

[ Signature Sound Lounge ]

---

[ Top of Page ] [ Contact Us ] [ Support/Wish List ] [ Copyright © 2024, Audio Asylum, all rights reserved ]

---

[ General ] [ Speakers ] [ Tubes ] [ Vinyl ] [ Digital ] [ Hi-Rez ] [ Video Asylum ] [ Cables ] [ Tweaks/DIY ] [ Music ] [ Films ]

---