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Getting signal from a Hammond M3 to Leslie
Old 15th May 2010
Gear Maniac
Chunky Karma's Avatar

Thread Starter
Getting signal from a Hammond M3 to Leslie

Can someone advise me as to proper way to get signal from an M3 to a Leslie 147. I already have an external preamp with 1/4 inch input jacks for the Leslie.
The only diagrams I have found on the net are similar to this one:
How to Install a Line out Jack on a Hammond M3 Electric Organ - wikiHow
It doesn't seem correct that I would tap in after the M3's amplifier just before the internal speaker effectively going through two preamp/amplifier stages.
There are a lot of wires back there and I'm new to the Hammond thing so literal answers would be more helpful than theoretical ones. (diagrams, pictures?)
Old 15th May 2010
Lives for gear


There is a specific kit for attaching an M3 properly to a leslie.

Don't remember the kit number right now, but a search of any Hammond/Leslie website/supplier will reveal it. Probably costs about $100 and takes an hour or so to wire up. (comes with instructions)

There's probably a BUNCH of ways you COULD do it, including using your preamp, but the best way is to use the kit, if you want that SOUND
Old 16th May 2010
Lives for gear
brianroth's Avatar

Old 18th May 2010
Take a look for wiring kit 6147 at someplace like or

these type of kit will provide everything you need to connect to a 147 including the speed switch and a main/echo switch which allows you to switch between the internal speaker and the leslie...

you will also need the multi-pin cable to connect from the organ to the leslie..

PLEASE doublecheck with them that this is the right kit !
I don't want you to be mad at me if I said the wrong #....
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