Re: (re)building an inexpensive tube phono stage
- Hi Paul,
It can be for sale if I build two more! I need one each for my two
systems. Only have this one at this time. jim...
--- In firstname.lastname@example.org, pdtt Houston <pdtt75@...>
>day on emergency.
> Is it for sale?
> Sorry I could not meet you for lunch. I had to go back the next
> Paultube phono stage
> Jim <jim@...> wrote:
> Building a great sounding, (relatively) inexpensive
>under "Dyna PAS Phono only"
> Home page photo and in our Photos section
> The first leg (of the PS) has two 47 uf at 250 volt in serieswith resistors across them to equalize the voltage drop over each
cap. Making it about 24 uf at 500 volt. Well above Dyna's B+ for
> The second leg is 33 uf at 630 volt. Making it 33 uf at 630 voltuf at 400 volt. Voltage on this leg of the circuit is below 250
> The last leg is two 20 uf at 400 volt in parallel. Making it 40
volts even at turn on.
> This is similar to the original capacitance rating. But noticeeach leg consecutive has a higher capacitance rating in uf than the
former. This gleaned from an article, with measurements. I read that
if you make each leg larger than the last, you have a smoother, more
> www.tubesandmore.com sells 630 volt Solens.Solens. Also hand matched Holco and PRP brand resistors from here.
> http://www.partsconnexion.com/ is where I got the 400 volt
> The board is populated with Sprague 716P film and foilpolypropylene caps from www.tubesandmore.com These were also hand
matched from a large quantity.
> The phono eq caps are from Tanner's. Hand matched.long grain copper cable.
> The white wire in this build is from stripped apart Audioquest
> I've built several of these. In two others I used Chimera Labssourced CCC wire and RCA's.
> The transformer is on rubber feet. Sourced from Tanner's. Mosttweaks I've learned from John Camille, Dennis Boyle and Walter
Delesandri. Slight change in phono eq from Walter.
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