Re: Slow power-up on black face vibro champ
- Subject: Re: Slow power-up on black face vibro champ
- From: "Hambone Hamilton" <harpmanx@xxxxxxxxxxx>
- Date: Thu, 19 Feb 2004 16:38:36 -0500
Capacitors dry out as they sit unused, and get rotten. If an amp sits for
five years, the wise thing to do is get a cap job. The tubes, as I said,
are probably fine, but I would probably change them because I like fresh
tubes. But you're correct, it probably will still take the same amount of
time to warm up.
>From: fjm <2738540@xxxxxxxxxxx>
>Reply-To: fjm <2738540@xxxxxxxxxxx>
>To: h-l <harp-l@xxxxxxxxxx>
>Subject: Re: Slow power-up on black face vibro champ
>Date: Thu, 19 Feb 2004 14:31:11 -0700
> > >but I'm worried about something. When i turn the amp on, it takes about
> > >seconds before i get any sound out of it with my mic. After that it's
> > >and
> > >sounds great. Is this normal for an old amp like this ? Would new tubes
> > >help ?
> > If it hasn't been plugged in for five years, I'd say it needs a cap job.
> > New tubes would be a great idea too, but may not be absolutely
> > cap job for a VC is probably $75 or less. I'd highly recommend, also,
> > new JJ 6V6 tube, but there are many, though more expensive choices, in
> > tubes.
> A classic case of asking the time and getting told how to build a
>watch. Tube amps are not instant on. They take in the neighborhood of
>10 seconds to warm the plates enough that they start to make sound. Is
>this normal for an old amp like this? It's normal for any tube
>maplifier. Changing the tubes will not improve the warm up time. fjm
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