[AMRadio] Screen Regulator Circuits, 20a, etc.

[Brett Gazdzinski]

I use a circuit out of the Bill Orr handbook that uses a big Vr tube,
some small octal tube, and a big triode (6as7??).
I forget the tube numbers, but the circuit is adjustable voltage output,
I use it on the screens of my 4cx250b modulator tubes.
Works very well, and has been 100% reliable for over 10 years now.

The 4cx250b mod deck is the one of choice for the 813 pair, its very clean
and runs 600 watts in ab1, so the circuit gets a good workout.

Brett
N2DTS


> -----Original Message-----
> From: amradio-admin at mailman.qth.net
> [mailto:amradio-admin at mailman.qth.net]On Behalf Of Geoff/W5OMR
> Sent: Wednesday, November 19, 2003 8:36 AM
> To: amradio at mailman.qth.net
> Subject: Re: [AMRadio] Screen Regulator Circuits, 20a, etc.
>
>
> > Jim, the websites that you gave cannot be downloaded.
> >
> > Thank you.
> >
> > Dave, W3ST
> > Secretary to the Collins Radio Association
> > Publisher of the Collins Journal
> > www.collinsra.com
>
> Worked for me.
>
> you have to re-join the link... or, at least know that the
> rest of the link, is
> on the next line ;-)
>
> > > My two circuits are here:
> > >
>  > Tube version:
> http://pages.prodigy.net/jcandela/CentralElectronics20AModific
ations/CE_20A_QRO_Power_Supply.jpg

> Solid State version:
http://pages.prodigy.net/jcandela/Sherwood_S8000/HV_REG/SS_HV_VOLTAGE_REGULA
TOR.jpg

>> The ripple from it is unmeasurable (with my
>> equipment), and dynamic load response is
>> excellent, although I cannot  remember exactly
>> what the results were, as that was last winter.
>> The rest of my 20a info on the web is at:

 http://pages.prodigy.net/jcandela/CentralElectronics20AModifications/

If the links are still broken, then cut-n-paste the first line of the link
into
your browser (you can copy the whole link, but if it's split, you'll only
get
the first line, anyway) then past the 2nd line.

Why does it do that?  I really don't want to get into an OS bash-session.

73 = Best Regards,
-Geoff/W5OMR


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