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Here's some info on the power question. The super six is the same as a Twin.
-dave
Roland Bettenville <> wrote:
briefly:
blackface twin: 85W
with the first silverface series they boosted the output up to 100W just by
increasing the voltage on the powertubes
for the 135W silverface they used the ultra linear output transformer.
Roland Bettenville
-------Original Message-------
From:
Date: woensdag 06 augustus 2003 11:54:33
To:
Subject: Re: [SurfGuitar101] 78 Silverface Twin vs. RI Blackface 65 Twin?
Now it gets interesting, I had almost the same discussion with an audio tube
fanatic friend of mine. When I told him about the "135watt/ 4x 6L6 twin, or,
for that matter, the "75 watt 2x6L6 Fender 75 combo", he just burst out in
laughter.
I'm not a technician, and I'll take anyones word that 4x6L6 give 85 watts
and no more. However, I didn't go around the world painting "135 watt" on
the back of all those Twins! so whats the story here? From what I get (from
ampwares and other info on the net), there are different breeds of SF twin,
commonly called "85watt twin" "100watt twin" and "135watt twin". I looked
at all the schematics and all I can tell is that the 85 and 100 watt seem to
differ a little, and the 135 seems to differ a lot, most notably the
different OT or OT-hookup.
If anyone could clear this up, it would be greatly appreciated, cause I'm
totally lost!
wannes
>From: dave wronski <>
>Reply-To:
>To:
>Subject: Re: [SurfGuitar101] 78 Silverface Twin vs. RI Blackface 65 Twin?
>Date: Tue, 5 Aug 2003 15:14:25 -0700 (PDT)
>
>On the Fender silverface amps, the "Master Volume" is kind of a design
>after thought. On these amps, turning the MV to 10 is pretty close to not
>having a MV. I think, but am not sure, that the Master Vol. in these
>Fenders can be removed by something almost as simple as cutting a wire.
>There may be a little more to it than that, I can ask a tech friend if you
>need to know. Most amps with master volume controls have a "voiced" pre-amp
>where they make a {usually lame} attempt to mimic the sound/eq of a
>non-master amp turned up loud. The silverfaced Fenders are not "voiced".
>
>I don't know why he's calling it a 135watt Twin. Four 6L6 power tubes with
>a solid stae rectifier gets around 85watts. Depends on quality of the tube
>brand, and how it's biasd.
>
>-dave
>
>rock verb <> wrote:
>Hi Dave,
>
>
>is the 135watt twin's OT actually the same as the 100W/85watt, but with
>more
>taps?
>what is the benifit of removing the master volume? Is that so much
>different
>from just setting it to 10?
>
>thanks,
>Wannes
>
>
> >From: dave wronski <>
> >Reply-To:
> >To:
> >Subject: Re: [SurfGuitar101] 78 Silverface Twin vs. RI Blackface 65 Twin?
> >Date: Mon, 4 Aug 2003 04:00:01 -0700 (PDT)
> >
> >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 <> 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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