Reverb Tank - Accutronics, 4AB3C1B, Long Decay, 2-Spring
The industry standard for years, the Type 4 is still manufactured today using Hammond’s original design. Counter wound and coupled springs deliver superior mechanical performance and the classic sound that helped make the Fender Twin Reverb Amps famous.
- Replaces: 4AB3C1B
- Solid, sturdy construction
- Type: Long (2 Spring) tank
- Decay: long decay
- Input: 8 Ω
- Output: 2,250 Ω
- Connectors: Input insulated/output grounded
- Locking: No lock
- Mounting: Horizontal/open side down
Compatible amps include tube reverbs from 1963-1990 such as the Princeton Reverb, Vibrolux Reverb, Deluxe Reverb, Super Reverb, Pro Reverb, Twin Reverb, Quad Reverb, Super Six Reverb, Vibrosonic Reverb. This also includes all reissue equivalents. Also includes Fender® ’63 Reissue Reverb Unit, Fender® Concert II, Mesa Boogie® MK2C plus other models, LAB® Series L5, L7, L9, Koch® Powertone I, B-52® AT-100. Also compatible with some speaker-driven, type F, vintage Ampeg® amps such as B12X, B12XY, Echo Jet, Echo Twin.
New production Accutronics tank.
Questions about reverb tanks? See our tech articles for more information.
SKU:
P-RK-4AB3C1B
Item ID:
003283
UPC/EAN:
609722126717
Accu-Bell Sound Part Number:
4AB3C1B
Brand:
Accutronics
Connector Type:
Decay Time:
Mounting Plane:
Number Of Springs:
Tank Length:
Type:
RoHS Compliant
| Connectors | input insulated, output grounded | |
| Decay Time | long (2.75 to 4.0 s) | |
| Input Impedance | 8 Ω | |
| Mounting Plane | horizontal, open side down | |
| Output Impedance (Zout) | 2.25 kΩ | |
| Springs | 2 |
| Packaging Dimensions | 17 in. × 5 in. × 3 in. | |
| Weight (Packaging) | 1.75 lbs. |
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Questions and Answers
Click each question to see its answers.
3 answers
Is this compatible traynor ycv-80 combo amp?
Asked by Anonymous on June 9th, 2020.
June 9th, 2020
Staff Member
Unfortunately, we do not have cross reference materials to verify what tank was used in your amp. It is possible that a tech may be able to measure the input and output impedance required by the amp and from there provide possible recommendations for further step to be taken.
Okay i get the manual and diagram. According to manual, reverb products are "accutronics 4EBC1B" . please help me. Thanks.
June 11th, 2020
Staff Member
The part "4EBC1B" excludes the decay time, possibly intentionally. If you would like a medium decay, you can use the term "4EB2C1B" in the search bar to pull up our options for those. If you would like a long decay, you can use the term "4EB3C1B."
1 answers
Will this work in my Traynor ycv20-2?
Asked by Anonymous on October 12th, 2016.
October 12th, 2016
Staff Member
Hi, we believe you need a 4EB3C1B. Please confirm this by consulting your manual.
1 answers
Will this work in a Music Man RP100 amp?
Asked by Anonymous on October 19th, 2016.
October 19th, 2016
Staff Member
Always pay close attention to the series of letters and numbers associated with each reverb tank. In this case 4AB3C1B. If these numbers match your existing tank then this replacement will be compatible. Please refer to our tech corner article explaining reverb tanks for a full explanation of what these numbers signify in terms of determining compatibility with your amp.
1 answers
Will this work in my Yamaha G100-112?
Asked by Anonymous on October 19th, 2016.
October 19th, 2016
Staff Member
Always pay close attention to the series of letters and numbers associated with each reverb tank. In this case 4AB3C1B. If these numbers match your existing tank then this replacement will be compatible. Please refer to our tech corner article explaining reverb tanks for a full explanation of what these numbers signify in terms of determining compatibility with your amp.
1 answers
Will this work in my Peavey xr 600b powered mixer?
Asked by Anonymous on October 19th, 2016.
October 19th, 2016
Staff Member
Always pay close attention to the series of letters and numbers associated with each reverb tank. In this case 4AB3C1B. If these numbers match your existing tank then this replacement will be compatible. Please refer to our tech corner article explaining reverb tanks for a full explanation of what these numbers signify in terms of determining compatibility with your amp.
1 answers
Will this work in my 1971 Fender Super Reverb?
Asked by Anonymous on October 26th, 2016.
October 26th, 2016
Staff Member
Yes, the 4AB3C1B is the tank used in the Super Reverb.
1 answers
Can I replace the ruby reverb tank in my '65 Princeton reverb reissue with this?
Asked by Anonymous on January 18th, 2017.
January 18th, 2017
Staff Member
Yes, the 4AB3C1B is the tank used in Princeton Reverb reissues.
1 answers
Will it work with a fender 95 evil twin amp .thanks
Asked by Anonymous on February 8th, 2017.
February 9th, 2017
Staff Member
Always pay close attention to the series of letters and numbers associated with each reverb tank. In this case 4AB3C1B. If these numbers match your existing tank then this replacement will be compatible.
1 answers
Will this work in Mesa boogie mark iv
Asked by Anonymous on July 22nd, 2018.
July 24th, 2018
Staff Member
From our limited resources it appears that you need a 9AB2A1B.
1 answers
Will this work in an Acoustic 100gfx lead?
Asked by Anonymous on March 2nd, 2020.
March 3rd, 2020
Staff Member
Unfortunately, we do not have cross reference materials to verify what tank was used in your amp. It is possible that a tech may be able to measure the input and output impedance required by the amp and from there provide possible recommendations for further step to be taken.
1 answers
I have a late 90’s Fender Twin Reverb. Will this fit like the original tank?
Kind regards Dennis
Asked by Anonymous on August 5th, 2020.
August 5th, 2020
Staff Member
This should be the exact same make and model currently in your amp.
Product Reviews
Made my Allen amp sound like it should!
Needed to replace a reverb pan in a Princeton and decided to go with the Accutronics instead of the MOD. Very happy with the results; it sounds vintage and full.
I replaced the original Accutronics reverb tank in my 1967 Princeton Reverb with this one. Although the original tank still worked and tested within spec, it was noisy and weak even with new cables, tubes, full recap, etc. (I actually did a full restore on this amp). I was reluctant to replace the original tank, but decided that for the price of this one it was worth a try. And I'm now very glad that I did. What a difference!! This tank sings with sparkle and warmth with lots of usable depth, as it should in an old PR circuit. It's also very quiet even with a 12ax7 driver. I was also pleasantly surprised that the mounting holes were cut exactly the same as the original and able to re-use the plywood base the original was on without making new holes in it. Not a big deal, but just to the point that it's a direct replacement detail in addition to the tech specs that I appreciate. Note, it did not come wth any mounting hardware which can be minus for some (I re-used the screws I had from the original). It does seem to be well made but time will tell if it can withstand the rigors of gigging and getting knocked around like my old tank. But for now, I'm giving it 5 stars for its sound and direct replacement compatibility in my old PR.
Excellent, works as it is supposed to and sounds like it is supposed to. Happy
Excellent! the shipping was fast and as scheduled. The tank I installed in my 1965 vintage Princeton reverb and worked perfect! I also ordered the bag and fitted tight but right!
Excellent! the shipping was fast and as scheduled. The tank I installed in my 1965 vintage Princeton reverb and worked perfect! I also ordered the bag and fitted tight but right!
Excellent! the shipping was fast and as scheduled. The tank I installed in my 1965 vintage Princeton reverb and worked perfect! I also ordered the bag and fitted tight but right!
Excellent! the shipping was fast and as scheduled. The tank I installed in my 1965 vintage Princeton reverb and worked perfect! I also ordered the bag and fitted tight but right!
Excellent quality and perfect sound,4 second decay time accurate and slight treble increase as expected from long-spring tanks.Replaced MOD tank that was self-oscillating due to the second spring vibrating continuously.Worth the few extra bucks,Accutronics is the classic long-spring reverb sound.
The first tank I received wouldn't work, but Antique Electronic Supply took good care of me. They immediately authorized my return and promptly shipped a replacement at no cost to me. Now the reverb on my Fender Super Reverb amp works great. I'm very happy with the product and with the customer service.