Here's one of Hunt Dabney's Way Simple, Totally Cool Ice Cube Sustain Couplers. If you've got
one of the following amps, you really need this device. It works with Fender Super Reverb, Twin
Reverb, Deluxe Reverb, Princeton Reverb, Vibrolux Reverb, Pro Reverb, and the Bandmaster Reverb.
Some models may have a slightly different spacing for the phono jacks on the back panels. For these
situations you would need to use male to female cables and be careful about where the Ice Cube hangs.
The unit plugs into the RCA phono jacks on the back panels of the amps listed above, by way of
the male phono jacks shown in the Side View picture above.
NOTE: It won't work well (at all) if you plug it in upside-down!!!
The Boost is a very nice natural sounding overdrive and will help you in your quest for feedback.
Please do not ask how this device works, because I won't tell you in deference to Mr. Dabney.
Asking $75, includes shipping, or you could have someone who knows how, mod your amp for
about $150 to $200.
If you are looking for control over the amount of Sustain/Boost and still want to be able to use the
reverb, click here to check out the Super Cube.