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phew, glad its over!
Posted: Wed Oct 27, 2010 10:47 pm
by Fran
Well tonight I finished (at long last) my new Pass Xono phonostage. It's been a really long build - I encountered a good few niggedly details along the way. But at last its built, boxed, powered and playing!
[Proud papa] And sounding bloody nice too [/proud papa].
This one will do mm and mc carts, variable loading, variable gain, balanced and single ended outputs. Power supply is a really nice super quiet shunt regulator. Transformer in a second box with a 1m umbilical. All wiring is silver in teflon. All nicely selected audiophile parts etc.... in other words it panders nicely to all our fetishes!
I'm kinda hoping that this is the last phonostage I build! Now I can get back to doing the other stuff I've long fingered.......
Fran
Re: phew, glad its over!
Posted: Thu Oct 28, 2010 11:13 am
by cybot
Well done Fran :-)
Re: phew, glad its over!
Posted: Thu Oct 28, 2010 11:58 am
by DavidMc
I'm kinda hoping that this is the last phonostage I build! Now I can get back to doing the other stuff I've long fingered.......
till the next one :-)
Any pics Fran?
Re: phew, glad its over!
Posted: Thu Oct 28, 2010 12:01 pm
by Ivor
Fran wrote: I'm kinda hoping that this is the last phonostage I build!
Fran
Are ye not going to make one for yourself as well? ;)
Re: phew, glad its over!
Posted: Thu Oct 28, 2010 10:18 pm
by Matt
Congratulations Fran. Wouldn't mind seeing some pics :)
Re: phew, glad its over!
Posted: Thu Nov 04, 2010 9:41 pm
by Fran
Some pics for you:
First up shows the phonostage on the left and the raw power supply on the right. Power supply is in an old PC power supply cage with a wooden front. Actual phonostage is in an old router case - actually a thing of beauty in itself.
- IMG_7897.jpg (135.5 KiB) Viewed 1105 times
This one shows the inside of the phonostage. The shunt power supply is that board with the big heatsinks to the front, and then the other 2 boards are the actual phonostage, one for each channel. There's facility for MM, MC with variable loading and capacitance, and for balanced and single ended output. I only wired it for MC and single ended output.
- IMG_7898.jpg (235.95 KiB) Viewed 1105 times
Another view of the same:
- IMG_7899.jpg (198.74 KiB) Viewed 1105 times
Fran
Re: phew, glad its over!
Posted: Thu Nov 04, 2010 10:13 pm
by Ivor
It's a dual mono design? Looks lovely... where do the valves go? ;)
Re: phew, glad its over!
Posted: Fri Nov 05, 2010 1:58 am
by Fran
In your ears!
Re: phew, glad its over!
Posted: Fri Nov 05, 2010 1:05 pm
by cybot
Fran wrote:In your ears!
LOL :-)
Re: phew, glad its over!
Posted: Fri Nov 05, 2010 10:16 pm
by DavidMc
Looks great(As usual :-))How does it sound? Are the old psu power supplies a usefull sources of clean power? What sort of modifications do they need to be put to good use?