Hammond A100 to Leslie 147 reverb wiring

[Abraxas]

Hi everyone,
Two weeks ago I bought an A100 year 1963, since I'm from Croatia (Europe) it has been converted to 220V it has an outside transformer and it all works fine, but the technician that made this modification also instaled the 26-1 mod with 27-9 harness but he did it wrong, because the signal coming of the hammond cabinet speakers and leslie was to low I presume because the tech put too high dummy load resistors to the internal speakeras and the overall mod installation was wrongly done.
I have managed to correctly install the 26-1 with the MEE switch but I need some help in getting the reverb signal to the Leslie. So my question is how to wire the reverb wiring so that I have the reverb signal in Leslie ? I have a 147 ?
Regards, Jan

[andyg]

Do you really want spun reverb? It's not exactly natural, but more of an acquired taste!

If you simply want the reverb coming from a remote position rather than the organ, here's any easy and cheap way. Get a used speaker (or two) from a stereo system that's died. Handling power, about 25 watts. Disconnect the internal reverb speaker and run a length of two core wire across to the stereo speaker(s) and connect up. Place the speaker near the leslie or hang it on a nearby wall. If you want to, you could make up a simple MEE switch for the reverb.

If you want your reverb to spin then the kit required is the 8444, here's a link to the schematics. http://www.fishorgans.com/leslie_kit...or_Hammond.pdf

[Abraxas]

I also have a P100 european version of Porta B or portable L100, and it has the internal speakers and reverb, but when you want to use the internal speakers with the reverb you just flip the switch, when you want to use only the Leslie with the speakers you can, so I like that feature and if it is possible would like to wire my A100 like that.

[enor]

Wes Garland I also have a P100 european version of Porta B or portable L100, and it has the internal speakers and reverb, but when you want to use the internal speakers with the reverb you just flip the switch, when you want to use only the Leslie with the speakers you can, so I like that feature and if it is possible would like to wire my A100 like that.

Yes of course. But it's a bit more involved than on the L-100; because the bigger models have what's known as "stereo reverb" which isn't a totally correct term to be honest; but what it means is that the reverb comes from its own speaker via a separate amplifier. So, you have to mix the two signals together before sending them to a Leslie 147; which makes the switching a bit more involved.

[Abraxas]

I understand, do you have a schematic by wich I can wire it ?

[andyg]

As enor said, the A100 has a completely separate reverb amp and speaker system, so the two sounds - organ and reverb - have to be mixed properly. You can't just join the wires! If you look at the schematics I linked to, you'll see how it's done in that kit.

[enor]

I understand, do you have a schematic by wich I can wire it ?

Andy posted a link to a good schematic for just this job.

[Drawbar Dave]

On the A100’s I’ve restored for others they asked me to mix the two signals to send to the Leslie and I then add a switch with a load resistor so that the reverb speaker can be muted. The rest of the speaker switching is a normal MEE setup.