Suitable reverb tank replacement for sho bud single channel

[Will Ellis]

Has anyone found the suitable modern replacement for the sho bud single channel reverb tank? The one I'm looking at is a Gibbs and only has "1122" stamped into it, and not the typical accutronics codes. Thanks for any input you can provide!

[Bill A. Moore]

If you can still read resistance at the connections, this chart will help you convert to the tank you need.

https://www.cedist.com/tech-articles/sp ... d-compared

[Bruce Derr]

Many Gibbs tanks have a letter stamped inside near one of the jacks. Sometimes it's partially hidden by the floating spring tray. Sometimes there's a number and a letter, like "4V". If yours has a stamp like that, let me know. I have a pretty good database of Gibbs info I've accumulated over the years. If you happen to find a longer number anywhere that you missed before, that could be useful even if it's not an Accutronics-type number. If there is one, it would be stamped in ink, not punched into the metal, and may have faded. (1122 is just the part number for the enclosure, I think.)

[Kevin Skrla]

https://www.amprepairparts.com/4fb2a1c.htm

[Will Ellis]

Thanks for the idea, that only works if you have an existing tank with DCR readings you can trust.

For posterity - I took a 9BB2C1B tank out of my NV400 and it seemed happy with that. That tank has an input impedance of 190 ohm, 2.5k output.

[Will Ellis]

https://www.amprepairparts.com/4fb2a1c.htm

Thanks for this Kevin! I'll forward this on to the amps owner, maybe he'll want to try this. Definitely a higher input impedance than the 9BB2C1B.

[Kevin Skrla]

I meant to add that website is very helpful with finding the right replacement tank. The Revisit brand replacement I have is a really nice tank.

The link I posted was sent from Studio Sound as a replacement for the “1122” Gibbs Type C tank.

YMMV

[Bruce Derr]

The schematic labels the tank as "4-C Reverb" so yep, Gibbs type 4 model C.