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Yahoo Group Archives »

Re: Tone death...

Brian Neal (xarxas) - 26 Jul 2004 19:30:00

Some follow-ups come to mind immediately:
> ...if you have a ground plug on your tank AND on your
> amp, you have the potential (pun intended) for a ground loop. This
> could happen if you plug your amp into one outlet and your tank
into
> another, and the two outlets were not using the same physical
ground
> path.
This scenario I described above should not normally happen. If it
does, the venue has crappy (and dangerous) wiring, and you may get
shocked if you grab your guitar strings and, say, a mic stand. All
of the outlets should (in a perfect world) have their grounds at the
same potential.
> I am not an electrician, nor do I play one on TV, so I won't
comment
> on the merits of removing the ground (third) plug from your tank.
> But I think Dave is right, since you never use the tank by itself
> (!) you will be grounded by virtue of your amp. If you have an old
> Fender amp, like your Super, you could plug your tank into it (but
> then again your amp probably has a 2 prong outlet) to keep
> everything on the same path.
>
All of this hinges on the fact that your Super does indeed have a 3
prong power cord. If it doesn't, get one!!!
(BTW, I saw Dick Dale get a zap when he grabbed the mic stand while
holding onto this guitar (touching the strings). He was using his
Showman amps WITH their original 2 prong cords!! His roadie had to
flip that 2 position ground switch on the back of the amp to fix
that problem. That switch becomes obsolete when you get a 3 prong
cord).
Again, all of this becomes a moot issue if you plug your 3 prong amp
AND your 3 prong reverb unit into the same outlet box. Hope that
helps.
BN

See this post in context.