I just wrote a huge response to this post, and my browser froze before I could post it... here's a summary, and we can discuss if you're interested:</p>
the RCA (I think it's the white one) that goes from the preamp on top to the swell pedal at the bottom is close enough to a line level to be run through an effect pedal. it might not sound the same as an instrument level from a guitar, but you're not playing a guitar, so it won't sound the same anyway. you're not going to blow anything up using this output. I have a pedalboard that I hated with my guitar, that sounds incredible with the organ. all sorts of cool effects.</p>
I bought my L for $15 bucks, and thought I was going to chop it. I screwed a piece of 3/4" plywood to the base instead, and it's a much better solution. why carry a chopped organ when you can slide, roll, or handcart a full organ.</p>
sheesh... I wish I hadn't lost that last post.
</p>
thanks for the response anyway...i just got my pr-40 today and im psyched...i do have to fix the reverb unit...the springs are all messed up...you know anywhere i can get replacements or whatever...and i need to get the control kit to hook it up to my L 103...any ideas of where to find?...im from the states by the way...</p>
and yeah i am really interested in hookin up some effect pedals...i did see some cool post somewhere, i forget possibly this messageboard, that showed the same idea that had jacks comin straight out by the drawbars...ya have any idea how to accomplish that? like what kinds of wire i need to get and plugs and whatever....?</p>
also i wanna chop mine up to lose some weight...its kinda stuck in my basement and i wanna get it out and around...does your plywood idea work well going up and down stairs?</p>
main/echo refers to the labels that were on the original half moon leslie switches that you see on the bottom edge of some organs. The main/echo/ensemble switch switched between the built in speakers, the external speaker, and both together. The Tremolo/Chorale switch was more commonly used while playing, which switched the speed of the leslie from fast (tremolo) to slow (chorale).</p>
I couldn't afford real switches, and I'm a piano guitar player who happens to have an organ, so there's a learning curve no matter where my controls are. I screwed the plywood to the bottom, and I velcro my effects pedals to the platform that's created around the swell/expression pedal. I also have a box that I built with a stomp button to control the tremolo/chorale.</p>
I think it's going to be easier to move a full organ up stairs with the plywood sled than it will be to carry a chopped organ up stairs. I laid the organ on it's back, and sized a piece of plywood that's the same profile as the keys. this way I can't chip a key when I'm moving through doors (they stick out the furthest). It also protects the bass pedals from taking weight when you're resting on a stair. After chopping the ply down to the right size, I found the center of the legs, and four strong "blocked" areas in the bottom of the frame. six screws total. with the sacrificial wood, I lifted one end up a concrete stair, and then shoved from the back scraping it along the edge without worrying.
</p>
All I've ever heard from anyone is that the weight savings with a chop is not worth the work. You're still going to have to move some kind of stand, and you're still going to have to have some kind of amplification. If you're using the built in speakers right now, wait until you have hooked the sucker up so some serious amplification to hear how sweet the bass pedals can sound before you decide you don't want them. Perfect pitch and infinite sustain are two things that will put a bass player to shame.
</p>
...i do have to fix the reverb unit...the springs are all messed up...you know anywhere i can get replacements or whatever...</p>
[/quote]</p>
of course Ebay is an option as a lot of parted out cabs make their way there.</p>
These guys currently make the industry standard reverb pans. I've not looked at retrofitting a PR-40 with one of their pans but if you were handy, I'm sure you could get it to work.
</p>
It's true, I couldn't afford switches. I couldn't even really afford more than 1 amphenol connector. </p>
I have an L-100, and a Leslie 145... and I've spent a total of less than $100 to get both back to operating condition. I managed to find the leslie and organ at goodwill (a few months apart) for $20 and $15. They thought the Leslie was a table.</p>
With this starting budget, it's been very difficult to justify blowing $200 on a whole hookup kit, so I bought a raw female end to hook up to the leslie, read the pinout carefully, and built a box that supplies power to the speaker and gives me an on/off and fast/slow switch (the switches are just $1.50 hardware store lamp switches).</p>
I have a 1/4" female into this box that I can either run the speaker level from the organ (just by pulling the spades off the speakers and connecting them to a pigtail) or I can run a small guitar amplifier into the box.
</p>
thanks....the pr40 has the necklace unit thing....could i just replace the springs of the necklace kind with the tank unit kind...and i do notice that the L103 i have has the tank unit.</p>
have you seen any of the necklace kinds around on ebay? or they come and go?...i dont even know how much i have to fix to get in working order. ive never seen or heard one in action so im a little blind..i need some sort of diagram or something on how the reverb unit works...if anyone else has any idea please help me out</p>
wow g that sounds like what i would like to do!</p>
1. could you please run me through this whole project and how you made the power box?</p>
2. what is a 'raw' female end and where can i find them?</p>
3. would you say this was hard or easy to make?</p>
4. are you able to have the internal speakers in your organ run at the same time you have your leslie goin?</p>
and by the way....a leslie table... thats great haha
</p>
[/quote]</p>
1. I based my box on the pinout I found here:</p>
My box started with the 26-1 connector diagram. It's incredibly easy to build. I originally didn't have an organ, and so I wanted to use this to get a guitar amplifier signal into the leslie. I have a switched, fused power line connected to pins 3,4,5 (as shown on the diagram), and a 1/4" speaker in connected to pins 1&6. The tremolo switch is connected after the fuse, and just adds the AC power to pin 2. I don't have any main/echo switching, because I would have to do that back in my guitar amp as originally planned. The only modification I made was to add a small capacitor across the speaker input to avoid DC drift (possible if I'm using all sorts of different unpredictable inputs) from destroying the leslie.
</p>
2. What I mean by a "raw female end" is I waited on ebay for a 6 pin cable to come up that was loose wires on one end, and an amphenol connector with holes on the other end to plug into the male connector on the back of the 145. I wired the loose end into the box, so I have a box with 6' of leslie cable and 6' of power cable sticking out.</p>
3. The box is a piece of cake to make. the only part that's hard to find is the 6 pin cable. I used a galvanized box that's supposed to be mounted in a studwall for a lightswitch in a house, just to have something solid and cheap. Power cables are hard to find until you realize that you can cut one end of a cheap extension cord off (you can usually get a 10' extension for something like four dollars). The power switches I used were just hardware store surface mount pushbuttons. I have a click on/click of switch for the speed. If I rebuild the box I'm going to make it larger with one click on/click off, and a momentary switch for a quick "speedup/slowdown"</p>
4. I hook up the output of the amplifier to a pigtail that goes into the input on the box. I could have both going at the same time, but I never have. The impedance of the two speakers as they're connected (parallel I believe) is 16 ohm. I can set the leslie to 16 ohm. If I had a main/echo switch, there wouldn't be a problem (16 ohm built in load, or 16 ohm leslie load). Ensemble, where both are running at the same time, is problematic because your only options are to run the leslie and internal speakers in series, to get 32 ohm impedance, or parallel, to get 8 ohms. After hearing the leslie on chorale, I doubt I would ever want to use the internal organ speakers unless I had put the organ somewhere where I didn't have the leslie nearby.</p>
wow i am afraid to say that this stuff seems a lil too advanced for my capabilities haha</p>
however i am dying to learn and do it all...i am bad at looking at schematics and relating it to the real wires and parts. i dont even know where to start.
</p>
thanks alot for all the help though</p>
ill keep on researching</p>
if you feel like putting it in simpler terms if possible then that would be great</p>
sure thing. if you have a leslie, and you want to run a signal into
it, you just have to know what gets sent to each pin. you can get the
connections to the pins by removing the 6 pin connector and tapping into the
amp, or by getting a female connector, plugging it in, and wiring up the other
end.<o:p></o:p></p>
either way, you have to know what goes to each pin. I haven't found an
excellent "verbal" description online, but it's easy to understand
off the diagram above. when you're looking at the leslie amp, the pins
look like this:<o:p></o:p></p>
<span style=""> </span>4<span style=""> </span><span style=""></span><span style=""></span>3<o:p></o:p></span></pre><pre><span style="font-size: 12pt; font-family: 'Times New Roman';"><o:p></o:p></span></pre><pre><span style="font-size: 12pt; font-family: 'Times New Roman';">there are two large pins at the top, four smaller pins below, and they are usually numbered from the top right around in a circle.<o:p></o:p></span></pre><pre><span style="font-size: 12pt; font-family: 'Times New Roman';"><o:p></o:p></span></pre><pre><span style="font-size: 12pt; font-family: 'Times New Roman';">the large pins 1&6 at the top are your speaker level or line level in.<span style=""> </span>it doesn't really matter which is which unless you care about the speaker phase.<o:p></o:p></span></pre><pre><span style="font-size: 12pt; font-family: 'Times New Roman';"><o:p></o:p></span></pre><pre><span style="font-size: 12pt; font-family: 'Times New Roman';">an ungrounded power cable has two wires.<span style=""> </span>one of these wires goes to 4&5.<span style=""> </span>the other one goes to pin 3.<o:p></o:p></span></pre><pre><span style="font-size: 12pt; font-family: 'Times New Roman';"><o:p></o:p></span></pre><pre><span style="font-size: 12pt; font-family: 'Times New Roman';">connected like this, the amp should power up, and will rotate on the slow speed, and you should get your signal out of the speakers.<o:p></o:p></span></pre><pre><span style="font-size: 12pt; font-family: 'Times New Roman';"><o:p></o:p></span></pre><pre><span style="font-size: 12pt; font-family: 'Times New Roman';">if you connect pin 2 to pin 3, the speed will change to fast.<o:p></o:p></span></pre>
i am coming to understand it all a lil better now. ive been reading and reading and reading bout this stuff. im getting more comfortable with it all.</p>
im assuming the PR40 uses the same principles with the pins and all. does it? i know i wont be needing a fast/slow switch and what about a tremolo? i would like a main/ensemble switch setup if possible? it did come with a huge chord that has a 6pin female on one end and a 5pin male on the other. on the PR40 amp there is a 6pin male and a 5 pin female...any idea of how to use this set up? or is it the same idea as the leslie?</p>
looking at the PR40 amp now, it seems like the same diagram you showed above...should i dissect the 5pin male end to start constructing that box to the organ?</p>
where do i start and what other supplies do i need to complete this project?!</p>
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