Reverb Tank - Mod® 8BB3D1B, Long Decay, 3-Spring

Mod Electronics
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Reverb Tank - Mod® 8BB3D1B, Long Decay, 3-Spring

In Stock
  • Replaces: 8BB3D1B
  • Solid, sturdy construction
  • Type: Short (3 Spring) tank
  • Decay: long decay
  • Input: 190 Ω
  • Output: 2,575 Ω
  • Connectors: Input insulated/output insulated
  • Locking: No lock
  • Mounting: Horizontal/open side down

Compatible amps include select Rivera® amplifier models, plus others.

The Mod Electronics Reverb Tanks are high quality upgrade units. Some of the major differences between the Mod®s and other reverb tanks are that the Transducers are wired directly to their respective RCA jacks as opposed to current production tanks where Transducers are connected by a detachable plug to their respective RCA jacks. This makes the tanks less receptive to any outside interference. The original Hammond Accutronics tanks from the 1960s were also wired directly to their respective RCA jacks. In addition, very close attention has been paid to the spacing and size of the lamination of the Transducers resulting in a more vintage like tone.

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

Item ID:
Input Impedance:
Number Of Springs:
Output Impedance:
Tank Length:
RoHS Compliant
Product Measurements by Type
Connectorsinput insulated, output insulated
Decay Timelong (2.75 to 4.0 s)
Grommet Hole Diameter0.2 in.
Input Impedance190 Ω
Item Height1.5 in.
Item Length9.25 in.
Item Width3.38 in.
Mounting Hole Center to Center A8.56 in.
Mounting Hole Center to Center B2.81 in.
Mounting Planehorizontal, open side down
Output Impedance (Zout)2.575 kΩ
Thickness0.04 in.
Packaging Information
Packaging Dimensions9.4 in. × 3.4 in. × 1.6 in.
Weight (Packaging)0.7 lbs.

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Questions and Answers

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Asked by Anonymous on December 30th, 2016.
Matt H
December 30th, 2016
Height is 1.40" and the width is 3.40" for both tanks.
Asked by Anonymous on January 18th, 2018.
Matt H
January 18th, 2018
From our limited research it appears that the 8EB2C1B should be the proper replacement. You may want to confirm this by looking for a tank number on your old tank.
Asked by Anonymous on November 5th, 2018.
November 6th, 2018
Staff Member
The 8BB3D1B has an insulated input and output connector, whereas the 8BB3C1B has an insulated input and a grounded output. I would go with the exact replacement tank:

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