Replacing a reverb tank in an early 80s Fender Twin Reverb (new Blackface, 135 watts ultralinear.)
The tank is missing.
I'm assuming a 4AB3C1B tank will work fine, but I'm wondering if there's any geekery surrounding the 'best' tank for this coupling tranny.
The transformer part number is 022921
Any ideas?
Reverb Transformer and matching tank
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- Buddha's Guitar Tech
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Reverb Transformer and matching tank
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Re: Reverb Transformer and matching tank
A Accutronics brand tank is the best sounding and to tweak any tank more I super glue down the coils to the iron plate core if they are loose, which most of them are to one degree or another! Just dribble in a medium type CA and use some accelerator if you have any on hand.
When I die, I want to go like my Grandfather did, peacefully in his sleep.
Not screaming like the passengers in his car!
Cutting out a man's tongue does not mean he’s a liar, but it does show that you fear the truth he might speak about you!
Not screaming like the passengers in his car!
Cutting out a man's tongue does not mean he’s a liar, but it does show that you fear the truth he might speak about you!
Re: Reverb Transformer and matching tank
Tanks are cheap, and the brands sound different. Get two and compare. Accutronics are the standard, but Mod tanks have nicer fit and finish (like color coded rings on the RCA connectors and BLACK chassis, which we all know means quality).
I build and repair tube amps. http://amps.monkeymatic.com
Re: Reverb Transformer and matching tank
A 9AB3C1B is a three spring version of that tank. I like it. Has a lot more boing! A dwell pot would be useful.I'm assuming a 4AB3C1B tank will work fine, but I'm wondering if there's any geekery surrounding the 'best' tank for this coupling tranny.
- Buddha's Guitar Tech
- Posts: 178
- Joined: Sun Dec 06, 2009 6:21 pm
- Location: Larne, N. Ireland
Re: Reverb Transformer and matching tank
Thanks everyone.
I'm fixing this amp for a client, so I think it comes down to the question:
"Do you want to wade in reverb, or swim in it?"
2-spring or 3, 2-spring or 3, 2-spring or 3....
I'm fixing this amp for a client, so I think it comes down to the question:
"Do you want to wade in reverb, or swim in it?"
2-spring or 3, 2-spring or 3, 2-spring or 3....
None More Black – guitar & amp repair – https://www.facebook.com/nonemoreblack
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- Posts: 4730
- Joined: Fri Jan 24, 2014 3:01 pm
- Location: 1/3rd the way out one of the arms of the Milkyway.
Re: Reverb Transformer and matching tank
A good working Fender has tons of it and I have never have wanted it deeper as you would get with a 3 spring as would most folks!
When I die, I want to go like my Grandfather did, peacefully in his sleep.
Not screaming like the passengers in his car!
Cutting out a man's tongue does not mean he’s a liar, but it does show that you fear the truth he might speak about you!
Not screaming like the passengers in his car!
Cutting out a man's tongue does not mean he’s a liar, but it does show that you fear the truth he might speak about you!
Re: Reverb Transformer and matching tank
+1 on the coil stabilizing. I use a sliver of wood from a bamboo skewer wedged in between the coil form and the core.
Tube junkie that aspires to become a tri-state bidirectional buss driver.
- Buddha's Guitar Tech
- Posts: 178
- Joined: Sun Dec 06, 2009 6:21 pm
- Location: Larne, N. Ireland
Re: Reverb Transformer and matching tank
Good tip, thanks.
None More Black – guitar & amp repair – https://www.facebook.com/nonemoreblack