Reverb Tank - Accutronics, 4AB3C1B, Long Decay, 2-Spring

Reverb Tank - Accutronics, 4AB3C1B, Long Decay, 2-Spring

Accutronics
Reverb Tank - Accutronics, 4AB3C1B, Long Decay, 2-Spring image 1
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$24.95
In Stock

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
Number Of Springs:
Tank Length:
RoHS Compliant
Product Measurements by Type
Connectorsinput insulated, output grounded
Decay Timelong (2.75 to 4.0 s)
Input Impedance8 Ω
Mounting Planehorizontal, open side down
Output Impedance (Zout)2.25 kΩ
Springs2
Packaging Information
Packaging Dimensions17 in. × 5 in. × 3 in.
Weight (Packaging)1.75 lbs.

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Questions and Answers

Click each question to see its answers.
Asked by Anonymous on June 9th, 2020.
BradWbr
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.
Anonymous
June 9th, 2020
Okay i get the manual and diagram. According to manual, reverb products are "accutronics 4EBC1B" . please help me. Thanks.
BradWbr
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."
Asked by Anonymous on October 12th, 2016.
Matt H.
October 12th, 2016
Staff Member
Hi, we believe you need a 4EB3C1B. Please confirm this by consulting your manual.
Asked by Anonymous on October 19th, 2016.
Matt H.
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.
Asked by Anonymous on October 19th, 2016.
Matt H.
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.
Asked by Anonymous on October 19th, 2016.
Matt H.
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.
Asked by Anonymous on October 26th, 2016.
Matt H.
October 26th, 2016
Staff Member
Yes, the 4AB3C1B is the tank used in the Super Reverb.
Asked by Anonymous on January 18th, 2017.
Matt H.
January 18th, 2017
Staff Member
Yes, the 4AB3C1B is the tank used in Princeton Reverb reissues.
Asked by Anonymous on February 8th, 2017.
Matt H.
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.
Asked by Anonymous on July 22nd, 2018.
Matt H.
July 24th, 2018
Staff Member
From our limited resources it appears that you need a 9AB2A1B.
Asked by Anonymous on March 2nd, 2020.
BradWbr
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.
Asked by Anonymous on August 5th, 2020.
BradWbr
August 5th, 2020
Staff Member
This should be the exact same make and model currently in your amp.

Product Reviews

5.00 out of 5 based on 13 reviews
- November 14th, 2020
5 out of 5

Made my Allen amp sound like it should!

- July 1st, 2019
5 out of 5

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.

- December 2nd, 2018
5 out of 5

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.

- November 6th, 2018
5 out of 5

Excellent, works as it is supposed to and sounds like it is supposed to. Happy

- September 9th, 2018
5 out of 5

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!

- September 9th, 2018
5 out of 5

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!

- September 9th, 2018
5 out of 5

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!

- September 9th, 2018
5 out of 5

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!

- September 8th, 2018
5 out of 5

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.

- February 2nd, 2017
5 out of 5

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.