collapse

Show Posts

This section allows you to view all posts made by this member. Note that you can only see posts made in areas you currently have access to.


Topics - Meshuggah333

Pages: [1]
1
Tubes and Hybrids / Proamplifiers VSQ 65 combo having a weird problem
« on: June 21, 2016, 04:39:41 AM »
History :
This amp is a gift from a friend, it took dust in a corner as he wasn't using it anymore. I don't really know what happened to it in the 26 years it's been out of the factory :D
I just know the preamp was retubed 2 years ago (some GT 7025 in V1,V4 and GT 12AX7 in V2, V3. Done by idiots and thieves but that another story)
It's from the Proamplifiers brand from Suffolk, England. The brand did a lot of amps in the 70's, 80's up to the mid 90's then did crash due to them being dependent of the US market (through the KMD brand) and basically loosing their only contract.

Problem :
If I cut all volume down, on any channels, I still hear a faint signal from the input.
Let me explain: it's as if even with the preamp completely cut off, I had a slight bit of input signal leaking through to the power amp.
This is even more obvious when I put a pedal that boost the input signal a lot, it sounds like a wet/dry signal (with distortion/fuzz pedals it's just horrible)

Do any of you have an idea of what ​​the problem might be?

The amp inputs 1/4" connectors are switching the preamp in and out of the signal path (they are switching connectors, I imagine it was done to prevent noises when nothing is connected to the amp), that might be coming from that but I'm not sure...

I'm certainly going to send it to a tech for a check up but I'm trying to solve most problems before that.


This is not mine but I have the exact same.

My first post and I already need help  ::)

Pages: [1]

* User Controls

 
 
Welcome, Guest. Please login or register.
Did you miss your activation email?

* Recent Posts

Info on Sunn Stinger 100 amp by Diablo_IV
[Today at 12:38:27 PM]


Ibanez TSA30 - buzzing by phatt
[November 12, 2019, 08:52:26 AM]


Intermittent loud crackle from Fender Deluxe 112 Plus by traxcontrols
[November 09, 2019, 01:23:37 PM]


So you need a preamp - here are your options by flester
[November 07, 2019, 05:03:55 PM]


Burned up cap by Den.
[November 07, 2019, 03:43:24 PM]

* Sponsors