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Post new topic HELP please, Reverb tanks for twin reverb
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Author Topic:  HELP please, Reverb tanks for twin reverb
Steve Spitz

 

From:
New Orleans, LA, USA
Post  Posted 29 Oct 2012 3:48 pm    
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I have a shot at buying a reverb tank for my twin reverb, two tanks which came from reissue fenders.
# 64063, from a Super reverb re-issue
4AB3C1B. From a vibrolux re-issue.
My tank sounds fair, not great. Anyone know if either of these could be an upgrade?
Thanks!!
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Tim Marcus


From:
San Francisco, CA
Post  Posted 29 Oct 2012 4:44 pm    
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reverb tanks are fairly straightforward. I use accutronics tanks in my amps, but the Ruby and MOD tanks are both just about the same quality. None of them are very high quality... just be warned. You will get a lot of noise, possibly some low level feedback when the reverb is turned up, and it will not last long before the springs break.

The vintage tanks were much higher quality - but unless you can find one that came out of a time machine, you are probably better off with a new production one.
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Stephen Cowell


From:
Round Rock, Texas, USA
Post  Posted 29 Oct 2012 5:34 pm    
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Accutronics has an eBay store... they used to build to suit, here in the USA... but now they only repair, and only stuff made in Cary, IL.

http://www.ebay.com/itm/Accutronics-Type-4-Spring-Reverb-REPAIR-SERVICE-/360358972211?pt=LH_DefaultDomain_0&hash=item53e7118b33

Looks like it's been off-shored like everything else.
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Dave Grafe


From:
Hudson River Valley NY
Post  Posted 29 Oct 2012 6:54 pm    
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Accutronics was sold to Belkin, a South Korean firm, a few years back. You can still place a custom order at http://www.accutronicsreverb.com/

The remaining NOS USA-made tank stock was purchased by Antique Electronics Supply, they can sell you one from their stock at http://www.tubesandmore.com/products/reverb_tanks

For complete information on the numbering system and other details check out the forum thread at http://bb.steelguitarforum.com/viewtopic.php?t=181671&highlight=accutronics
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Ken Fox


From:
Nashville GA USA
Post  Posted 3 Nov 2012 7:26 am    
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I am very pleased with the MOD tanks. Also the new Accutronics seems great as well. I prefer the MOD tanks over the Accutronics. I have never had any reliabily issues or noise issues with either and I have sold and used a lot of the both tanks.


Great info on MOD tanks here:

http://www.amplifiedparts.com/products/P-RMOD-8EB2C1B
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Tim Marcus


From:
San Francisco, CA
Post  Posted 3 Nov 2012 8:24 am    
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only thing about those MOD tanks is that sometimes they are only grounded on one side. This can cause issues depending on how your amp was built
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Ken Fox


From:
Nashville GA USA
Post  Posted 3 Nov 2012 9:08 am    
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That totally depends on the tank you buy. Some inputs and outputs are not grounded tot eh tank chassis, thus allowing telescoping of shields to reduce hum. That totally depends on how the manufacturer designed the amp and the tank that fits those needs. Alpha character 5 in the tank code determinres the grounding scheme:

A= input and Output Grounded
B= Input Grounded, Output Insulated
C= Input Insulated, Output Grounded
D= Input and Output Insulated
E= No Outer Channel

A Peavey tank would be 9EB2C1B, input not grounded, but insulated

A classic Fender 4AB2C1B, same as the tank above. The shields of the reverb cable for the tank's inputs are connected at the amp chassis only.

A few years ago I got a new Accutronics tank for a Peavey and it caused an extreme hum. Found out is was built wrong, the input was not insulated from the tank chassis. I had an old tank and removed the insulator for the RCA jack. With that installed all the hum was gone.

A list of tanks codes is here:

http://home.comcast.net/~machrone/bjr/reverbcodes.htm
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Tim Marcus


From:
San Francisco, CA
Post  Posted 3 Nov 2012 11:25 am    
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I made a jumper to ground the MOD tank I used properly. No big deal.
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