Reverb Tank - Accutronics, 4EB3C1B, Long Decay, 2-Spring

Reverb Tank - Accutronics, 4EB3C1B, Long Decay, 2-Spring

Reverb Tank - Accutronics, 4EB3C1B, Long Decay, 2-Spring image 1
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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: 4EB3C1B
  • Solid, sturdy construction
  • Type: Long (2 Spring) tank
  • Decay: long decay
  • Input: 600 Ω
  • Output: 2,250 Ω
  • Connectors: Input insulated/output grounded
  • Locking: No lock
  • Mounting: Horizontal/open side down

Compatible amps include Fender® Hot Rod Deville, Hot Rod Deluxe, Blues Deluxe (reissue only), Blues Deville (reissue only). Replaces Fender® Part Number 0050394000. Also, fits Traynor™ YCV50 as well as some Music Man™ and Peavey™ models. Suitable upgrade/ replacement for the Vox™ AC30CC series amp.

New production Accutronics tank.

Questions about reverb tanks? See our tech articles for more information.

Item ID:
Accu-Bell Sound Part Number:
Number Of Springs:
Tank Length:
Product Measurements by Type
Connectorsinput insulated, output grounded
Decay Timelong (2.75 to 4.0 s)
Input Impedance600 Ω
Mounting Planehorizontal, open side down
Output Impedance (Zout)2.25 kΩ
Packaging Information
Packaging Dimensions17 in. × 5 in. × 3 in.
Weight (Packaging)1.3118 lbs.

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Questions and Answers

Click each question to see its answers.
Asked by Anonymous on December 8th, 2017.
Matt H.
December 8th, 2017
Staff Member
This tank has an input impedance 600 Ohms and an output impedance 2250 Ohms.
Asked by Anonymous on June 22nd, 2019.
June 24th, 2019
Staff Member
We would advise replacing the tank with the same unit that was originally in it. We do offer 8AB2A1B tanks:

Product Reviews

5.00 out of 5 based on 7 reviews
bradrodriguez11 - March 10th, 2022
5 out of 5

Got this tank to replace the original tank in a late 90s Peavey Classic 50 212. It installs easily and sounds much better than the original tank. The decay is long and thick, albeit a bit flubby, but that might be due to Peavey’s reverb circuit. Still, much better than the original tank.

Scott from Appleton - January 15th, 2016
5 out of 5

Direct replacement for my Fender HR Dlx —works like a charm.

Rob Zylstra - October 18th, 2015
5 out of 5

This reverb tank arrived in excellent condition. It was well packaged and shipping was fast. The tank was installed and works perfectly in my amp (Traynor YCV20WR). Quality of the tank is excellent. Thanks for selling a great product.

Joe Prock - June 29th, 2015
5 out of 5

Very happy with my reverb tank. Well packed, smooth transaction; all very professional, and quickly delivered. Thanks. I know where to come in the future when I need electronic parts.

Tony Robertson - March 2nd, 2015
5 out of 5

Great service

Dobie Toms - October 14th, 2014
5 out of 5

Works great

Bill Reuter - June 23rd, 2014
5 out of 5

This unit is a huge upgrade from the Fender version it replaced; much higher quality.