FDP Forum / T'shooting Question - dual channel 40 watt VM Band-Master/ 5 messages in thread.

1 to 5 of 5 shown.


Rebrecs



USA/Texas

Mar 11th, 2017 05:10 PM        

Hope someone here can help. The fender site doesn't acknowledge the existence of this amp. Fender VM Band-Master.<br /> Two channel 40 watt tube amp with some effects gadgets. <br /> The clean channel started hissing. Happens with or without anything plugged in. The OD channel is fine.<br /> The discovery -- I took the face off expecting to change a 12AX7 or something for clean channel and found there is one set of tubes for both channels. <br /> That's a new one for me.. naturally they wouls both use the power tubes. But the pre's ?<br /> <br /> The question - how likely is it that a tube is the culprit when the symptom only shows up in one channel? Stated another way, are the clean and OD channels so different that a tube induced hiss would appear in one and not the other ?<br /> <br /> Thanks in advance -- any tips are appreciated



swampyankee

Contributing Member
**********
*

olde New England

If you can't play good, play loud
Mar 11th, 2017 06:07 PM        

I gig a Bandmaster VM. Head-cab version of a Deluxe VM. <br /> The clean channel is solid state running through the DSP effects, outputting through the 6L6 power stage. Not sure where the hiss might be coming from. You could search earlier posts for info on either the BMVM or Deluxe VM.



reverendrob

FDP Data Goon
Moderator

We all want

our time in hell
Mar 12th, 2017 12:34 PM        

When in doubt, swap tubes. <br /> <br /> If that solves the problem, boom!<br /> <br /> It *should* be step one on any tube amp troubleshooting list!



Rebrecs



USA/Texas

Mar 13th, 2017 05:11 AM        

Thanks swampyankee, <br /> There is a link to the schematic on Steve Dallman's reply, however, fender has removed the page that the link points to (sigh)<br /> I'm going to call their support phone number today. If for nothing else than to provide them with the painful reminder that they made and sold this amp.<br /> <br /> So, the clean channel is an imposter. That is disappointing news, and goes far in answering questions about some other weirdness I noticed.<br /> <br /> ps... what is a Swamp Yankee ? (smile)



swampyankee

Contributing Member
**********
*

olde New England

If you can't play good, play loud
Mar 14th, 2017 01:32 PM        

Before i bought my BMVM, I did alot of googling for info, reviews, discussion, etc. Despite what i found (not the highest opinions and it being orphaned by Fender), i bought mine anyway. I figured it had features i wanted for gigging, and it was cheap enough, bought used.<br /> <br /> A swamp Yankee is basically a New England redneck. It's a reference to my residence in rural towns here in New England, one of which is in fact, 30% swamp.



Copyright 1999-2003 Fender Discussion Page, LLC. Visit the web site at http://www.fenderforum.com