Re: YBA 2 Help
- From: Mike Schway <mschway@xxxxxxx>
- Date: Wed, 30 Apr 2008 09:48:58 -0700
In article <h55h14t2klaenah2rqvmuti0lgbp2c1854@xxxxxxx>,
Dave Curtis <dbaudiotech@xxxxxxxxxxxxxx> wrote:
On Tue, 29 Apr 2008 19:49:58 -0700 (PDT), Razordance
<blinky130@xxxxxxxxxx> wrote:
I just picked up an old Traynor YBA-2 bass amp, which I was given for
$25 CDN because it's not working. No sound from the amp, I haven't
opened the back yet, but it seems like one of the power tubes is dead,
and the other is glowing but really struggling. I can't easily see
what the preamp tubes are or aren't doing. Does anyone have any
suggestions on where to begin with getting this amp back to working
order? There are a couple of people I know of around town who are into
restoring vintage amps, but for all I know it could just need new
tubes. I'll likely take it to one of the experts so I don't kill
myself with it, but does anyone have any suggestions or advice? When I
asked the guy if it had been unplayed for a while, he said yes, but he
then gave me the impression that he was talking about a month or so,
not years. He really didn't seem to know much about the amp. I expect
it will probably need tubes and caps, but other than that...?
A cap job and a 3-wire cord wouldn't hurt.
See if your tech can do this:
http://www.flickr.com/photos/8993818@N05/sets/72157600381416831/
If so, he should be able to make it sound great.
(BTW, the new ground should be lugged under a tranny nut, not just
soldered)
-DC
Nice pix, Dave.
Reminds me that although the old YBAs usually clean up quite nicely,
their Achilles' heel is that if there has been a near catastrophic
failure in their past, the eyelet board is subject to real burn damage.
The board is made of uncoated hardboard (a step down from Masonite) and
if there have been any overheated components, there can be some charring
in the vicinity of the connections. That can make a repair strategy a
little more of a creative exercise. I've seen cases where the eyelets
have completely detached from the board before.
--Mike
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