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Posted: Sun Apr 11, 2010 9:08 am
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BigJay wrote:
I've just replaced my power tubes in my '76 bandmaster. The old ones were sovtek and I received many recommendations to continue using them for output tubes. Savage Audio, which makes vintage style amps (pro-grade only) rebuilt my amp and runs sovtek GT6l6's unless otherwise requested. Real workhorse tubes and not too expensive.

Incidentally, the "russian made" Groove Tubes are sovtek. So, you'll pay more for the Groove Tube label unnecessarily. You can buy Sovtek all over.

However, as I mentioned, Thumbs, that amp will be so loud and clean that you will have trouble getting that classic tube break without breaking out your windows. I dont think attenuators are a healthy alternative for your tubes and amp, so you may want to research some different tubes that break up earlier in the power curve.


No worries there. I have an assortment of distortion and fuzz pedals to get around that issue.

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Posted: Sun Apr 11, 2010 10:01 am
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Chuck Berry is perhaps the guitarist who was associated with the Dual Showman Reverb for about 3 decades. He runs his Gibson ES-345 through a pair of these silverface piggyback heads and a matching 4x12 cab.

Chuck sometimes uses regular Dual Showman heads and 2x12 cabs.

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Last edited by chromeface on Sun Apr 11, 2010 10:07 am, edited 1 time in total.

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Posted: Sun Apr 11, 2010 10:05 am
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Posted: Tue Apr 13, 2010 12:29 am
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No SF Dual Showman Reverb ever shipped from Fullerton with "a matching 4x12 cabinet".

From 1968 -- its first year of issue -- until 1980 -- when the model was retired --, the only specified speaker enclosure for the amp was a 30" x 45½" x 9½" behemoth containing two fifteen-inch speakers (JBLs initially, Gauss or EV from '77 until the end).

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Posted: Tue Apr 13, 2010 1:17 am
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Cool, "Retro", thanks for the info!

Chuck used (and still uses) Non-Master Volume SF DSRs.

Master Volume DSRs did not appear until the mid-1970s, I suppose. These mid-to-late 1970s tone monsters came with the infamous pull-out "boost" pot, with some having the normal tailless amp logo and 100W RMS and others a "scripted tailless" decal, Zodiac grillcloth and 135W.

I don't know the exact release dates of the so-called "scripted tailless" decals and the introduction of the Zodiac grillcloth on most silverface amplifiers.


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Posted: Tue Apr 13, 2010 9:13 am
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The changes to the DSR cosmetics would coincide with the timeline for the Twin Reverb, Quad Reverb, and Super Six Reverb, since all these amps shared a common chassis. The tailless logo appeared in late '72 or early '73, just about the same time as the separate-and-removable grill frame with velcro attactments and the MV control. The orange-stripe grill cloth came the following year but would revert back to the silver/white/turquoise in mid '77 when the "ultra-linear" 135-watt chassis was released. Apparently in 1980 (the final year for the DSR) there was a "blackface" option available but I have never personally seen one and cannot comment beyond that.

The P-P boost on the MV control is of dubious merit but if it is not used, the amp performs pretty much like the earlier versions......clean and loud!

Another artist with some affiliation with the DSR was the late Terry Kath of Chicago -- I saw Chicago at Kiel Auditorium in St. Louis in '71 and he played a pair of them. He was using a goofy guitar though......one of those Les Paul "Professional" models, with the low-impedance pickups. It really strangled his tone.

HTH

Arjay


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Posted: Tue Apr 13, 2010 10:48 am
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These blackface DSRs were designed by Paul Rivera.

The unscripted tailless decals officially debuted in 1972/73, although the CBS-owned Fender companies used them on the Bronco student amp in 1967.

My question concerns the exact release year of the scripted tailless logos.


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Posted: Tue Apr 13, 2010 5:23 pm
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chromeface wrote:
These blackface DSRs were designed by Paul Rivera.

The unscripted tailless decals officially debuted in 1972/73, although the CBS-owned Fender companies used them on the Bronco student amp in 1967.

My question concerns the exact release year of the scripted tailless logos.


The Rivera-designed "Dual Showman" (later as the Dual Showman Reverb) actually bears little resemblance -- cosmetically or electronically -- to the original AC568 version as produced by CBS/FMI.

As for the tailless logo, some examples of this were shown in the 1967/68 catalog -- primarily on the student models and small combos. This style of badge disappeared shortly thereafter, re-surfacing once again in the early '70s. Some of these are plastic rather than metal.

HTH

Arjay


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Posted: Tue Apr 13, 2010 8:13 pm
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OK, folks, thanks for the infos.

CBS started shipping all Fender amps with the scripted tailless decals in 1976/1977.

The scripted tailless decals are recognizable for the "Made in USA" script on their bottom side.The scripted tailless design officially lasted until 1985, however some post-CBS USA-made Fender amps made in the late 1980s/early-to-mid 1990s sported scripted tailless decals on their grilles.


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Posted: Tue Apr 13, 2010 10:34 pm
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The "MADE IN USA" caveat was added to Fender's tailless amp logos sometime in the '80s -- when they coincidentally began building some lower-tier (ie: entry-level) amps overseas, principally Japan and Taiwan. This difference in logos was an easy way for the informed to distinguish between the domestic and off-shore models.

HTH

Arjay


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Posted: Tue Apr 13, 2010 11:34 pm
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CBS had already added the "MADE IN USA" caveat on the bottom side of the silverface tailless amp decals in 1976/77 and not in the 1980s as mentioned above.

This silverface Super Reverb shown below was made in 1978 and sported the scripted tailless amp decals. It has also a master volume with pull boost pot, a 3-band EQ on the Normal channel and 70W RMS.


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The picture came from Sweetwater's website. This amp is not mine.


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Posted: Wed Apr 14, 2010 12:01 am
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Solid info, thanks for the update.

My '78 Twin Reverb has the tailless logo but without the "MADE IN USA" on the bottom. It also has the silver/white/turquoise grill cloth. Weird!

Arjay


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Posted: Wed Apr 14, 2010 1:32 am
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While the other silverface amps were shipped with light blue labels on their faceplate, the Bronco used red. Why?


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