2. amps-preamps
  3. 161870-14508

DYNACO Pre-Amp PAT-4...with an added Volume knob

I just purchased this pre-amp
It sounds good but someone added a volume knob in substitute of 
the input headphone jack.
I looked inside of unit , there is a volume pot installed instead of input jack.
Has anyone ever seen this modification before?...if so , what is it used for?
Thank you
rocky1313

Showing 2 responses by oldhvymec

oldhvymec
5,101 posts
 
So you have 2 volume pots, and NO headphone jack, or is there still a headphone jack there, inside or moved?

Second:  what is the volume pot hooked to? I'm thinking someone used it for a trim pot, on a line source input, like a Reel to Reel. Is it a pot or an analog, off/on switch of old.. 4-6" long with disk full of resistors/caps and a common shaft?

Does the unit work?

Regards
oldhvymec
5,101 posts
 
WOW that is a of of information. One heck of an upgrade too.

I have a PAT II all valve unit.. I bought the kits over 2 years ago.
(my interest in this thread)

Distortion reduced from .02 to .002 10X reduction.. lot of work!

Regards
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