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Post subject: Bought a '60 Super yesterday.
Posted: Thu Sep 30, 2010 12:39 pm
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Some of y'all will remember my thread asking about the vintage Supers,well yesterday I bought a brown Aug. '60 Super,it's the 5G4 circuit that there's no schematic for from what I've read...it's in good shape with some changes over the years...it was owned by an amp tech.
I haven't pulled the chassis yet but the guy emailed me pictures of the inside and there are a few orange drops along with some original yellow Astrons and the original filter caps are there.
The speakers are not original,maybe Eminence,and the power trannie has been replaced with a '67 (606742),code 022814 which I think was for some Pros and Bassmans and the tube rectifier has been replaced with something,I'm not sure what,but the socket is blocked off...I'll check that out when I pull the chassis.
The amp sounds really good but I'll replace the speakers with some good alnicos,put in new tubes and I want to restore it back to a GZ34 tube rectifier.
What about the PT should it be replaced?
Sorry no pics...maybe I'll be set up someday to post some bragging pics of some of my stuff. 8)


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Posted: Thu Sep 30, 2010 2:09 pm
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The 022814 power tranny corresponds to that used in the AB763 Bandmaster and Concert, and the AB165 Bassman. It's a more-than-adequate hunk of iron for your 6G4. If you send me some chassis pics I may be able to ascertain other details.

Incidentally, I recently learned on another forum that there were in fact some early Supers equipped with a diode array in lieu of the tube rectifier. It's possible that your amp may have been originally so configured (yes, it was big news to me as well.).

Good luck with the new "brownie"......I am envious!

Arjay

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Posted: Fri Oct 01, 2010 5:06 am
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Arjay,thanks,I figured the PT would be okay but wanted to check.
I had read that about some Supers with the rectifier being a diode type of some sort like the bigger brothers in the professional line...I've never seen one before.
Also last night I was looking at the bottom of the chassis and the OT has been replaced with a '62 Super OT....I know some of the caps inside have been replaced with some Sprague od's.
I'll pull it this weekend and look inside,like I said the guy I bought it from took a couple of shots and emailed them to me...if I could figure out a way to email them to you I will...I guess the personal message here at the forum is disabled and I use my computer here at work to get on the forum,I'm blocked out of some things,and so far I've been spending money on music equipment rather than buying a new home PC...wonder why? :wink:
Hey,I looked at your profile...will that email addr. work?


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Posted: Fri Oct 01, 2010 9:27 am
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Yeah that e-mail addy will work. Or you can use my primary......

<phantoms4ever(at)cox(dot)net>

How's the trem in that amp sound -- any "ticking"?

Arjay

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Posted: Fri Oct 01, 2010 10:27 am
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The trem sounds great,more rich than a BF...no ticking that I've heard for the short time I've had it....it's a very clean sounding amp....brighter than I figured it would be,maybe because of the orange drops?
I'll shoot you an email with the few pics I have.


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Posted: Fri Oct 01, 2010 3:04 pm
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Rebelsoul asked me to help him out so here are some pics of his newly-acquired 1960 Super Amp......

Image

Image

Image

Image

Image

Aside from the replaced power tranny and some routine maintenance on the circuit board, the chassis is remarkably pristine with only fifty years of routine road grime to sully the cabinet's exterior cosmetics. Usually there are corrosion and other moisture-related issues on something this old but this one is nice. And it's all there as far as the original Tolex, transition-era grill cloth, and hardware goes (the handle strap may be a replacement).

I wish I was in as good a shape as this amp!

:mrgreen:

Arjay

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"Here's why reliability is job one: A great sounding amp that breaks down goes from being a favorite piece of gear to a useless piece of crap in less time than it takes to read this sentence." -- BRUCE ZINKY


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Posted: Fri Oct 01, 2010 3:36 pm
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Nice score. Looks like a keeper. Love those Brownies...... 8) Mike

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Posted: Thu Oct 07, 2010 6:53 am
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Nice amp, and another example of a hybrid/one-off Brown Super circuit. RIght in that date range Leo and friends were trying a lot of different circuits and were phasing in the later "-A" circuits with the cool vibrato.

More to the OP's question, unfortunately that's not a factory original SS rectified Super. A few have shown up and are really Bandmaster/Concert/Pro chassis, which Leo often used interchangeably with an OT change if necessary. If it was original it would have the diodes on the bias cap board up by the pilot light, same as a brown Bandmaster/Concert/Pro. We'd have to surmise that the tech who put in the Bandmaster PT set it up that way because it didn't have wiring for a tube rectifier. This is easily undone, however, with a more appropriate PT.

The orange drops wouldn't be my choice fro a coupling cap replacement, but replacing yellow Astrons is becoming more necessary as they are failing due to age. I'm not sure why he would not have replaced the filter & bias caps, but you should consider it.

These 1960 brown amps are fascinating amps and a glimpse into Leo's mind as he transitioned from the tweeds to the "-A" browns.


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Posted: Fri Oct 08, 2010 9:54 am
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Thanks for weighing in here on this, SoK.

More expertise on the brownface era is eagerly welcomed on this forum -- I've only recently began to study them.

I've owned a tweed in the past (5F6-A) and beau coup blackfaces and silverfaces but never a "brown".

Arjay

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Posted: Fri Oct 08, 2010 10:04 am
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No sweat. The early brown amp era, particularly 960, is packed full of one-offs & other surprises. The earliest 5 preamp tube "5G*" + "6G*" amps with the so-called "center volume" control are closest to the weeds, and then slowly morph into the 6 preamp tube "6G*-A" amps of '61 - '63. We've seen many variations in the tone circuit, layout and component values that never got documented via schematic/layout diagram.


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Posted: Fri Oct 08, 2010 11:07 am
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Indeed. Much "undiscovered territory" yet to be explored.

Arjay

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"Here's why reliability is job one: A great sounding amp that breaks down goes from being a favorite piece of gear to a useless piece of crap in less time than it takes to read this sentence." -- BRUCE ZINKY


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Posted: Fri Oct 08, 2010 11:34 pm
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Man, that is a CLEAN chassis. At least whomever put those OD caps in seem to do a neat job. I wonder why he didn't replace all the 'lytics, though? Esp in the bias power supply. Personally, the OD that I like are the original Sprague "Mylar" 6PS and 12PS. They just sound better from the get go. New SBE 715P & 716P sound "tight" and need quite a long break-in period (IHMO).


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Post subject:
Posted: Sat Oct 09, 2010 6:11 am
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I prefer Mallory 150s or Sozo caps as yellow Astron replacements. Sozo has recently introduced a blue cap he claims is a transparent replacement fro yellow Astrons & blue moldeds. I'm going to try them in a clone kit amp this year.


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Posted: Sat Oct 09, 2010 9:03 am
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SoK1966 wrote:
I prefer Mallory 150s or Sozo caps as yellow Astron replacements. Sozo has recently introduced a blue cap he claims is a transparent replacement fro yellow Astrons & blue moldeds. I'm going to try them in a clone kit amp this year.


Let us know how those Sozo's work out, SoK......I may have a need for those.

BTW I checked out your profile pics on the FDP forum -- you've got a real sweet collection, my friend. Very similar to my own.

And what color is that gorgeous "sparkle-finish" Tele? Looks very groovy!

Arjay

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"Here's why reliability is job one: A great sounding amp that breaks down goes from being a favorite piece of gear to a useless piece of crap in less time than it takes to read this sentence." -- BRUCE ZINKY


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Post subject:
Posted: Sat Oct 09, 2010 9:28 am
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Thanks for the tip on Sozo caps. Is there any issues using them in places where there are usually 600 VDC rated coupling caps? The only site I found displayed 400 VDC rated products.

Thanks!


http://www.sozoamplification.com/purchaseBM.html


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