Spring tank in mineral oil?

[willi]

Accutronics spring tank in mineral oil, what do you all think? I'm wondering if that might make it a little less 'boomy'... I've got the longer springs. As you may know, mineral oil is non conductive, readily available, and relatively inexpensive. And, as was pointed out to me, some older Hammonds used to ship with a spring reverb tank full of some type of oil...

[kooki_sf]

doubt it will change much. might cut down on noise from getting bumped or kicked.

[XK-S -> 3300]

There once was a type of "Oil Can" reverb that needed oil. That was probably what Hammond used. It wasn't just an Accutronics tank with oil poured in it.

 

Check the number on your tank. The Accutronics website has an explanation for the number system. If you have a long reverb tank you might try replacing it with a short or medium. IIRC the short tanks reverb for a second or so, the long ones for 5 or more.

 

There are also the short tanks but they have the same three reverb times but a little different tone.

[DINpluggedIN]

 

And, as was pointed out to me, some older Hammonds used to ship with a spring reverb tank full of some type of oil...

Here's one article that goes into some detail about that:

http://theatreorgans.com/hammond/keng/kenhtml/Ken'sSpecialEffects.htm

 

You can find more on the topic by doing a Google search on "oil damped spring reverb".

 

As far as being "boomy" is concerned, you might try EQing. A low cut from about 120Hz down might help with "boom", and minimizes AC line interference (hum) that some reverbs suffer from.

 

Info on Accutronics units:

http://www.accutronicsreverb.com