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Post subject: Re: Road worn 1974 Super Reverb restoration
Posted: Fri Aug 21, 2015 12:50 pm
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Look what showed up for the 74 Super reverb !
A temp buffer speaker as i wait for my recones from Weber
It was a blem so i got it for 39 shipped YA !
its a 50 watt 8 ohm Eminence Lil Buddy Hemp cone
Should take some pressure off the other two CTS alnicos while we wait
Cause i just can't stop playing this amp !!! LOL

Image
Image

Image

Here is that sound clip video for anyone who missed it
https://youtu.be/dps_ZLJIWhc

PS the GZ34 is now a mullard

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Post subject: Re: Road worn 1974 Super Reverb restoration
Posted: Sun Aug 23, 2015 3:10 pm
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Chris,

Man! That really sounds good. Bet, much better live & in person. Super Reverbs are such great amps.

Enjoy! :D


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Post subject: Re: Road worn 1974 Super Reverb restoration
Posted: Sun Aug 23, 2015 3:58 pm
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Thanks Beemer !
Couldn't have done it without Guys like you who guided me through the learning curve (not that i have arrived)
Tweaking amps has turned into a big part of my guitar life ! I get a Huge kick out of taking so so sounding amps and bring back the authority to it, make it sing LOUD !

Ya the last super I had was a Master volume without the tube rectifier (I think), been a few too many years
However I'm sure its in a thread here somewhere :lol:

This one has found a spot in my personal line up and hopefully it will stay for the long haul.
The recone guy at Weber says next week, i'm tempted to drive down and get em, Its only about a two hour drive and Kokomo is pretty cool.
Amazing antique store !!! even had some tubes last time down. :mrgreen:

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Post subject: Re: Road worn 1974 Super Reverb restoration
Posted: Mon Aug 24, 2015 7:24 am
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You are welcome! Restoration of these vintage amps is something well worth passing onto others. The results can be very satisfying, after doing the proper work.

Good luck with all of your amps!

:mrgreen:


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Post subject: Re: Road worn 1974 Super Reverb restoration
Posted: Mon Aug 24, 2015 2:40 pm
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Just for fun i dug up my old Super reverb Thread from a few years back
Man I've learned so much since then !

viewtopic.php?f=12&t=74018&hilit=super+reverb

1977 ??? master volume At first was told it was a 74 Arjay corrected me, another lesson learned !
My current S/R actually has more 73 date codes than 74 and the CTS were 71 so..............?????

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2004 50th Ann. Limited edition AMSE Stratocaster
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1968 Bandmaster with 2X12 cab C-rex speakers
VHT Special 6 Ultra combo

Visual Sound Route 66
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Post subject: Re: Road worn 1974 Super Reverb restoration
Posted: Mon Aug 24, 2015 3:24 pm
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A likely scenario is that the 1971-marked speakers are replacements.

Arjay

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Post subject: Re: Road worn 1974 Super Reverb restoration
Posted: Tue Aug 25, 2015 5:25 am
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I thought that was probable Arjay , didn't think they left a pile of alnico CTS lying around for three years
Does make ya wonder why you tend to see more ceramics than alnicos in the mid 70's
For what its worth I'm glad mine had the alnico magnets, replacements or otherwise.

Weber says they will get mine done this week and as tempted as I am to replace the other two with some variation of a 10" ceramic, I do believe I'll just eventually have the other pair reconed and keep it all the same.

Knowing the guys at weber, I'm guessing its gonna sound Sweet !

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2004 50th Ann. Limited edition AMSE Stratocaster
2017 50's Baja Telecaster BSB

1968 Bandmaster with 2X12 cab C-rex speakers
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Last edited by blues bondsman on Tue Aug 25, 2015 6:19 am, edited 1 time in total.

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Post subject: Re: Road worn 1974 Super Reverb restoration
Posted: Tue Aug 25, 2015 6:05 am
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For some reason (maybe cost?) --- ceramic magnet speakers were more plentiful in the 1970-80s, than alnico magnet. Many alnico ones were built with 30-watt handling capacity voice coils. I still like the tone of a good alnico magnet speaker on these mid-level powered vintage Fender amps. A bit warmer, maybe more natural, "brown" harmonics?

When I first heard a Super Reverb, in action --- initial thought was, "that is loud." Loud & very nice. Loudest mid 30-ish watt amp I've ever heard.


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Post subject: Re: Road worn 1974 Super Reverb restoration
Posted: Tue Aug 25, 2015 6:16 am
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My son and his little family came over last night and he got to play the Super Reverb for the first time and my new secret weapon (don't shoot !!! ) a Squier, yes a Squier Classic Vibe Tele I picked up for under 150 bones that is as nice as any I've played
I do love my local pawn shops :mrgreen:

Any way Joe (my son) laid down his best Zeppelin, Rush, Kansas, pink Floyd etc..... looks at me and says Dad this thing sounds perfect for covering classic rock !!! Yep it sure does !

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Yes I'm still in the basement :cry: roofer's are scheduled here in two weeks and the man cave shall once again arise !!!!
Loosing that 19.5X19.5' space really cramped my style !

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Keepn' the Blues Alive

2004 50th Ann. Limited edition AMSE Stratocaster
2017 50's Baja Telecaster BSB

1968 Bandmaster with 2X12 cab C-rex speakers
VHT Special 6 Ultra combo

Visual Sound Route 66
Cmatmods Signa Drive


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Post subject: Re: Road worn 1974 Super Reverb restoration
Posted: Tue Aug 25, 2015 7:20 am
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BMW2002Ti wrote:
For some reason (maybe cost?) --- ceramic magnet speakers were more plentiful in the 1970-80s, than alnico magnet.


+1

Commodity prices for rhodium, chromium, nickel, cobalt, and other rare-earth metals on the world market began to climb in the mid '70s due to global upheaval as many former European colonies on the African continent had been granted independence or otherwise threw off the yoke of political and economic oppression. Lacking European expertise to properly mine and refine them, prices for these minerals soared and to this day remain quite expensive.

Arjay

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Post subject: Re: Road worn 1974 Super Reverb restoration
Posted: Thu Aug 27, 2015 10:59 am
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Well, it looks like I got in a similar Super Reverb in for some work.
Based on your recommendations, I think I'll go with the PI mods and screen grid resistors. I'll let ya know how it works out.


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Post subject: Re: Road worn 1974 Super Reverb restoration
Posted: Thu Aug 27, 2015 11:36 am
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Sure worked for me Tim'saudio !
Today i finish the electrolytics on the main board, a new opto bug and a beefed up F&T 100uf 100Volt cap for the bias board.

Still waiting on the other two speakers :roll:

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Keepn' the Blues Alive

2004 50th Ann. Limited edition AMSE Stratocaster
2017 50's Baja Telecaster BSB

1968 Bandmaster with 2X12 cab C-rex speakers
VHT Special 6 Ultra combo

Visual Sound Route 66
Cmatmods Signa Drive


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Post subject: Re: Road worn 1974 Super Reverb restoration
Posted: Thu Aug 27, 2015 2:46 pm
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Tonight's projects
Image

Getting started
Image

Mailman just dropped off the Opto Bug and so I started pulling the board electrolytics , just got going and its time to light the grill
Fresh corn on the cob roasted on my big charcoal grill :mrgreen: and some burgers too :D oh ya and sweet cantaloup.

I'll let you all know how it all works out, the tremolo/vibrato has been very week and so I'm excited to see if the new bug wakes it up.

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Keepn' the Blues Alive

2004 50th Ann. Limited edition AMSE Stratocaster
2017 50's Baja Telecaster BSB

1968 Bandmaster with 2X12 cab C-rex speakers
VHT Special 6 Ultra combo

Visual Sound Route 66
Cmatmods Signa Drive


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Post subject: Re: Road worn 1974 Super Reverb restoration
Posted: Fri Aug 28, 2015 4:49 am
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Done !
all new electrolytics throughout
New Opto Bug and with that a fully functioning vibrato !

I used the TAD bipolar 25uf 25V lytics on the board after researching (talking with Beemer) and hey they were a super deal too so...............

The amp is running super quiet , rich and full of sweet tones and still only running two original CTS speakers and one Lil Buddy Eminence as a buffer to take a little stress of the originals.
Hopefully Weber will ship the reconed CTS next week.

Image

Image

Image

_________________
Keepn' the Blues Alive

2004 50th Ann. Limited edition AMSE Stratocaster
2017 50's Baja Telecaster BSB

1968 Bandmaster with 2X12 cab C-rex speakers
VHT Special 6 Ultra combo

Visual Sound Route 66
Cmatmods Signa Drive


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Post subject: Re: Road worn 1974 Super Reverb restoration
Posted: Fri Aug 28, 2015 7:13 am
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Really hope that reconing comes out well. You go for none or light doping?

Be interested how long those bi-polar caps last. Suppose to last longer than the polar 'lytics.


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