Stuck on fast or stuck on stupid; you be the judge

**tonewheelfreak** · 05-04-2010, 05:47 PM

Anyone know why my Leslie 122A stays stuck on fast speed when I connect my Hammond C2 to it? Preamp and everything in the C2 is stock. Audio is fine and everything powers up w/o a hitch.

Pin configuration as follows:

Pins 1 & 6 (red & Black): audio

Pins 3 & 4 (blue grey): AC

Pin 2 (brown)

Of course we all the trouble/solution lines in Pin 2. The question is as follows: Is there any way to relatively easy rig up aswitch so I can switch the Leslie from slow/fast? Is it just a matter of breaking/maintaining contact on this pin2 brown wire or is there more to it than that? As kind of a sub topic, don’t ask me why a supposedly 6pin configuration works fine with only 5 pins. When I hook up my other Hammond A102 to this Leslie everything works fine as a 5pin config. I’m using a Trek solid-state preamp with it but it still only have 5 pins hooked up and everything works great. Keep in mind this is a Leslie 122A were talking about with the motor control board. Much obliged for any help/assistance.

Sincerely,

Trevor

**handyczech** · 05-04-2010, 05:57 PM

So you just plugged a 122 into a stock C-2?

Or is there a leslie kit installed, with a front rail half moon switch? The kit sends the speed setting fromthe switch by intercepting a pin on a tube on the preamp.

The trek-II has the speed control built in.

Remember: unaltered stock Hammond consoles do not mate directly with a leslie without a kit. Laurens did not like the leslie speaker.

**handyczech** · 05-04-2010, 05:57 PM

So you just plugged a 122 into a stock C-2?

Or is there a leslie kit installed, with a front rail half moon switch? The kit sends the speed setting fromthe switch by intercepting a pin on a tube on the preamp.

The trek-II has the speed control built in.

Remember: unaltered stock Hammond consoles do not mate directly with a leslie without a kit. Laurens did not like the leslie speaker.

**tonewheelfreak** · 05-04-2010, 06:27 PM

Thanks for the quick reply. Yes, I did plug a Leslie 122A into a stock C2? Like I say everything works great except the Leslie 122A being stuck on fast speed. Yes, now that you mention it there was a little silver metal box in the organ for that labeled “Leslie echo control type 3H” someone had disconnected it. It has two set of two wires going into it; one labeled “main” and the other labeled “echo.” Any way you could tell where to hook those wires onto the preamp? I also have the 3 position half moon switch.Note, I only use my Leslie tone cabinet with the organ…not using any Hammond tone cabinets or anything like that. Much obliged. You’ve been very helpful and I really appreciate it.

Best,

Trevor

**handyczech** · 05-04-2010, 06:50 PM

An echo kit is for use with 2 cabinets. They may have had 2 leslies, 2 hammonds, or one of each. there must be another 2 position switch that says tremolo and chorale. If not, the C-2 may have been only used with 2 hammond cabinets and switched back and forth.

We are now too deep in technical details for my further assistance, but I think you need a 26-1 kit, which swap-connects with the G-G terminals so marked on the preamp, and has either a mini or full size octal adapter for the tube, and the switch for the front. I think a website mentioned for lots of info has been "captain foldback", so you might try there. We have a stong technical presence here, Geoelectro, and he may have some comments.

If someone else has been messing around in there, it becomes difficult to guess what their motivation might have been. Pictures would help.

**TheAdmiral** · 05-04-2010, 08:13 PM

It's not stuck, it's doing what it's supposed to do without a switching kit. The default speed is fast. You don't need a 26-1 kit. That is for unbalanced input like a 147. The older switching box is a 428, but I think the newer number is 8000. You can find that info on the internet. It's the same hookup as the regular 122. Also you don't need the 3H box if you're only using the Leslie.

**handyczech** · 05-04-2010, 08:20 PM

Thanks for blowing away the cobwebs. You said best what I was thinking.

**Mike M3** · 05-04-2010, 08:30 PM

This may be a bad suggestion but have you thought about just getting a motor controller that controls the speed of the motors.I am going that route with my 122.I am getting mine from Dr fishsticks,aroung $79 shipped.I checked my organ switches and my amp and could not track down the problem so I am going the easier route...Mike

**tonewheelfreak** · 05-04-2010, 09:51 PM

I agree Dr. Fishsticks makes an excellent product and fills a gap that was long overdue to be filled with a design like his. However, last time I emailed him about a controller he wasn’t making them for the Leslie 122A’s…just the older 122’s. I tried to convince him of a need to design them for the 122A’s as well. He agreed that this is worth considering…that was the last I heard. What I have gathered so far concerning my problem with getting the 122A to switch to slow speed is that the “Leslie echo control” box isn’t the animal I need to do the job. I wish someone could tell me directly and succinctly what I do need. Or maybe I don’t need to buy anything. Maybe it’s just in how I wire it up. Are you sure I can get it done with the “Leslie Echo control Type 3H” box? It would be nice if didn't have to buy anything.Whatever the case I wish I could get this solved as I have an important gig coming up this weekend. I’m all about the B3 sound with my classic rock/blues/jam band. Wanna hear the guts of a tone wheel Hammond? Go here: http://www.myspace.com/trb1 I guarantee you this ain’t no clone. No clone can or ever will sound this phat. I’ll see if I can get some pics of the preamp and the “Leslie Echo control Type 3H” box uploaded so people can see what I’m dealing with…might help… you never know…a pics worth a thousand words or they say. Thanks.

Best,

Trevor