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Fender Tube amp Reverb tank replacement
Old 6 days ago
  #1
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Fender Tube amp Reverb tank replacement

My Fender Concert Reverb amp, Reverb is out and its the spring Reverb tank.

** Thanks for your help John

I found this out by tested the amp with my reverb tank from my Blues JR and it worked! (although the Accutronics Reverb tank on the Blues JR. is rather short)

By looking at the tank I see nothing obvious - do they "go bad"????

Anyway I need to buy a replacement.

Should I just try to buy the same one from Accutronics or are there "upgrade" versions of Reverb tanks?

The Accutronics is about 16 3/4" long and is stamped 4AB3C1B

I see Mod makes a compatible one and I am looking to get a good quality one for sure.

Any advice would be appreciated.

ty
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Fender Tube amp Reverb tank replacement-p1040799.jpg   Fender Tube amp Reverb tank replacement-p1040800.jpg   Fender Tube amp Reverb tank replacement-p1040801.jpg  

Last edited by markustg; 6 days ago at 05:29 PM..
Old 6 days ago
  #2
Quote:
Originally Posted by markustg View Post
My Fender Concert Reverb amp, Reverb is out and its the spring Reverb tank.

** Thanks for your help John

I found this out by tested the amp with my reverb tank from my Blues JR and it worked! (although the Accutronics Reverb tank on the Blues JR. is rather short)

By looking at the tank I see nothing obvious - do they "go bad"????

Anyway I need to buy a replacement.

Should I just try to buy the same one from Accutronics or are there "upgrade" versions of Reverb tanks?

The Accutronics is about 16 3/4" long and is stamped 4AB3C1B

I see Mod makes a compatible one and I am looking to get a good quality one for sure.

Any advice would be appreciated.

ty
The Accutronics brand is generally recognized as the best. However there are several things that need consideration.

First, you need a tank with transducers that match your amp, impedance-wise. There are several variations to accommodate the various tube and transistor designs, so be sure to check that you order one for tube Fender amps. Should be 8 ohm input, 2250 output.

Second, there are two and three spring versions, and short and long tanks. You will probably want the same type that is in your amp unless you feel adventurous.

Third, they come in short, medium, and long reverb times. Either get the same type as in your amp, or change it it you want a longer or shorter reverb.

Fourth, there is mounting orientation. Since the springs in a reverb tank sag somewhat the tanks are tuned at the factory to compensate. Orientations are springs up, springs down, side up, and end up. You need the one that's the same as the way your tank in mounted, which on a Fender should be springs down.

There should be a part or model number stamped on you tank which can be encoded to tell you what your specs are.

There are sources online such as Amplified Parts that sell tanks and can help you with your selection.

Last edited by John Eppstein; 6 days ago at 06:43 PM..
Old 6 days ago
  #3

You named the two choices you have today. I don't think there's much difference between them besides paint vs plating the shell.

As long as the impedances for send and return transducers are the same, you can get any length and number of springs you like. Since they aren't that expensive, getting a couple and trying them may be worthwhile...



-tINY

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