4AB3C1B Mojo Reverb Tank (Fender, Marshall, Ampeg 2-Spring)

The 4AB3C1B 2-spring reverb tank is used a wide variety of amplifiers. The tank has a long decay time for players who are looking for heavy surf style reverb. Used in Fender Blackface and Silverface amps that had reverb: Twin Reverb, Deluxe Reverb, Princet