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To find out if you might have a tube problem, tap on each one while the volume
is turned up to a moderate leval. If you hear feedback - type microponics and
loud rattling, change the noisy ones. The power tubes {large tubes} should not
make any loud noises when tapped. If they do, they might be arcing internally
and should be replaced. The GrooveTubes 6L6GE are made by them in California
using the old GE machines. See them on their web site in the 6L6GE section.
NOS tubes like RCA, Mullard, Telefunken are real nice, and a bit pricey. When
you put them in a combo amp the proximity to the speakers shortens thier life.
But they are better sounding than anything made today. For tubes that are cheap
and sound good, I have been using the JJ brand. www.eurotubes.com Bob can help
make choices, he's a player, too.
I don't know what speakers, etc. you are using so I don't know why you have a
"piercing high" problem. The silverfaced amp probably does have a better high
freq. response than the re-issue. So, if your guitar has some rattles, you just
may be hearing them more clearly.
We would love to come to Austin, and San Antonio. We came to Austin last Oct.
and it was a great time. Any contacts you have, pass along.
-dave
Landlocked <> wrote:
Thanks for the input Dave! Any advice on how to eliminate the
peircing highs? Maye a different tube? Would NOS be a good
investment? This is off the subject but, we need Slacktone in San
Antonio (just an gour and a half south of Austin) any chances? I
could set up the gig. Just thought I'd ask.
Thanks--Phillip
In , dave wronski <stickmandw@y...>
wrote:
> The silverface Twin is alot closer to a blackface than the re-issue
ever will be. It's got the same transformers, chassis, point to point
wiring, and quality construction. The master volume is not that
invasive, but, it is easy to remove. They didn't make the cabinets as
good in '78, but they're OK. They use Orange drops caps instead of
Mallorys, so the tone/response is a little different from a BF. The
driver stage in a silver face can easily be change to BlackFace spec,
if preferred.The speakers are probably better, too. If they haven't
been damaged.
> -dave
>
>
>
>
>
> Landlocked <thee_surrealist@h...> wrote:
> For the past year I've been playing through a RI 65 Twin. The other
> day I spotted a sharp looking 78 Silverface Twin(135 rms & Master
> Volume knob) The shop owner agreed to do an even swap if I desired
> even agreeing to let me take it to practice that night. So I did,
and
> it sounds great. Now, I'm no amp geek but I've read certain reviews
> online even dug through the archives of Surf 101.I've read to stay
> away from these amps from some people, others love em-especially if
a
> clean tone is desired.(I play surf, the second applies to me) Is
this
> a wise decision? The amp definitely has a fatter sound but the
highs
> are a bit piercing. Has anyone had any experience with the 78 TR?
If
> so, your inpit is greatlt appreciated!
> Thanks, Phillip
>
>
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