[ARC5] Anybody Know Good Regulator Circuit?

[Brooke Clarke]

Hi Wayne:

What is the max output current of this supply.  If it is more than tens of mA then there will be a high power pass 
regulator, maybe in a TO-3 case.

-- 
Have Fun,

Brooke Clarke, N6GCE
https://www.PRC68.com
axioms:
1. The extent to which you can fix or improve something will be limited by how well you understand how it works.
2. Everybody, with no exceptions, holds false beliefs.

-------- Original Message --------
> Some years ago I bought a Tema 0-20VDC power supply on ebay.  The seller reported that it seemed to have been modified to produce a steady 25 VDC output by a change to a trimpot.  I finally got around to replacing that "bad" trimpot but that had no effect.  I then realized that the 25 VDC output is simply the unregulated output of the rectifier.  Obviously the regulator section had failed, so I replaced the HA17324 op amp, the only active component in the regulator board, but that did not fix it.
>   
> Lacking any schematics or other troubleshooting info, I think the simplest thing is to simply build a new regulator section using a suitable circuit; it simply feeds the bases of a bank of power transistors.  Any of y'all have a favorite IC for that application?
>   
> Thanks!
>
> Wayne
> WB5WSV
> ______________________________________________________________
> ARC5 mailing list
> Home: http://mailman.qth.net/mailman/listinfo/arc5
> Help: http://mailman.qth.net/mmfaq.htm
> Post: mailto:ARC5 at mailman.qth.net
>
> This list hosted by: http://www.qsl.net
> Please help support this email list: https://www.qsl.net/donate.html

-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://mailman.qth.net/pipermail/arc5/attachments/20220516/7e04d69d/attachment.html>