scott2000

Re: PRR 176 vari-mu (check first post for docs)
« Reply #820 on: July 16, 2018, 05:59:23 AM »
Thanks!

Did you do your own pcbs ?


saint gillis

Re: PRR 176 vari-mu (check first post for docs)
« Reply #821 on: July 16, 2018, 07:19:06 AM »
Yes eagle cadsoft, iron perchloride, and go. Also I had thoose esoteric lundahls hanging around

scott2000

Re: PRR 176 vari-mu (check first post for docs)
« Reply #822 on: July 16, 2018, 07:30:47 AM »
Yes eagle cadsoft, iron perchloride, and go. Also I had thoose esoteric lundahls hanging around

Yeah... I like how you did  it. You used every inch of that chassis....How would you say you feel about it? Are you really happy with the way it operates and sounds? 

saint gillis

Re: PRR 176 vari-mu (check first post for docs)
« Reply #823 on: July 16, 2018, 07:37:05 AM »
Yes definitely! It's awesome. Thanks to PRR for the sidechain circuit.

scott2000

Re: PRR 176 vari-mu (check first post for docs)
« Reply #824 on: July 16, 2018, 08:22:27 AM »
Definitely! Thanks so much for sharing your project! It's really inspiring!

shabtek

Re: PRR 176 vari-mu (check first post for docs)
« Reply #825 on: July 20, 2018, 05:57:32 AM »
Another beautiful diy project!congrats
Definitely! Thanks so much for sharing your project! It's really inspiring!
indeed
"really fine players do not use stomp boxes or master volume, they match the amp to the room and turn it up to 11.  Stevie Ray, BB King, Albert King, Duane Allman, Dicky Betts, Louis Armstrong"
   -CJ

ravachol

Re: PRR 176 vari-mu (check first post for docs)
« Reply #826 on: January 10, 2019, 12:10:35 AM »
Is the AC Sound website still up and running? The last time I looked, it seemed kinda sketchy.
Never say "potato" — but you can have one!

weiss

Re: PRR 176 vari-mu (check first post for docs)
« Reply #827 on: March 20, 2019, 06:24:37 PM »
Is the AC Sound website still up and running? The last time I looked, it seemed kinda sketchy.

seems offline. just wanted to order some pcb's...  :(

scott2000

Re: PRR 176 vari-mu (check first post for docs)
« Reply #828 on: March 21, 2019, 12:39:27 AM »
Didn't someone take the remaining boards from Abe? Was it collective cases???? I'm not sure if that's right or even relevant in timing but, I remember seeing some boards not too terribly long ago......



edit//////maybe it was the clx160....now that I just looked.... :-[

http://collectivecases.com/?product_cat=pcb


guess you could always reach out to Dan and ask if he knows anything about some being around??
« Last Edit: March 21, 2019, 12:45:59 AM by scott2000 »

weiss

Re: PRR 176 vari-mu (check first post for docs)
« Reply #829 on: March 21, 2019, 03:02:09 AM »
Thank you!


Jeremy.Starseed

    Currently Sweden, oftentimes San Francisco
  • Posts: 90
Re: PRR 176 vari-mu (check first post for docs)
« Reply #830 on: May 02, 2019, 03:29:48 PM »
Does anyone have the original documents for this? i have a PCB i'd like to finally build.

I also have a PCB slowly filling up (OK, so really slowly). A 2011 "Rev 176", and well, I'm wondering if anyone here has the documents still?

None of the documents are online, I notice (and I never received the other PCB's I paid for, nor heard anything back). Probably a good reason for that...I remember there was even a "build butler" online at one point, such a bummer things went off track.

Mothership Mastering

" You won't believe how good you sound! "

scott2000

Re: PRR 176 vari-mu (check first post for docs)
« Reply #831 on: May 03, 2019, 07:21:36 AM »
Some rev4 docs/links here... not sure how relevant to you  though??.... guess should be useful...

There's a build butler link in there somewhere that works as well afaik....

https://groupdiy.com/index.php?topic=54563.580

Jeremy.Starseed

    Currently Sweden, oftentimes San Francisco
  • Posts: 90
Re: PRR 176 vari-mu (check first post for docs)
« Reply #832 on: May 05, 2019, 01:36:08 PM »
Unfortunately it all got taken down before I got to the project. I got a Rev 2 board which I don't have access to now, and decided to finish the rev 1, or "rev 176" as is printed on the PCB. That's this thread, I believe.

Looking around for parts for it now. Does this ( https://www.don-audio.com/Edcor-PCW10K-7K-300-32 ) look like the right output transformer?

In the Rev4 BOM it says "Edcor PWC"  in a couple of places. This one has the  code Edcor PCW10K-7K/300-32 and is the closest, linguistically speaking.  As for function, it looks about right to me, but hey...wiser to ask.

Another question is:  where the funkiest-sounding OP amps are to be found these days?

Clean, OK...but not sterile, or I will regret the whole build. The behavior of the PRR-176 is a little on the "spitty" side, from what I can tell, so something with a smooth and sweet response would make sense.

Thank you

JB I I
Mothership Mastering

" You won't believe how good you sound! "

Jeremy.Starseed

    Currently Sweden, oftentimes San Francisco
  • Posts: 90
Re: PRR 176 vari-mu (check first post for docs)
« Reply #833 on: May 05, 2019, 02:57:51 PM »
Thanks for chiming in, I just found the correct reference, and you're right, 1:1...but, it says 4:1 on this early version, and there are two footprints, marked Edcor and 4:1. I am guessing they fit the PC and PCW versions, having found references to those types in the original thread. 

The thing is, I want to interface old 600 Ohm gear, and this unit is said to have a ton of gain inherent, no? My sound card and one other piece of gear are my only typical 10K devices.  Perhaps that one I asked about is a good fit?
Mothership Mastering

" You won't believe how good you sound! "


 

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