blue and white Posted February 19, 2006 Share Posted February 19, 2006 Hi, I've recently acquired a Leslie 125 (145 with no top rotor and a smaller amp) but have no way of plugging into it. I'd like to build my own interface box, seeing as I already have a preamp and everything, just basically a 1/4" (or xlr) input and 117v in and 6 pin leslie out. I was able to get a pin out from the Hammond and Leslie models site which is: Pin 1 - GroundPin 2 - 117VAC to relay solenoidPin 3 - 117VAC inputPin 4 - 117VAC inputPin 5 - 117VAC to relay solenoidPin 6 - unbalanced input signal I was able to figure out everything except pins 2&5, I think these control the tremolo and chorale but I don't know how... is it just a switch shorting that pin to 117v? Please help me out here. Thanks, Mike. Link to comment Share on other sites More sharing options...
Prague Posted February 19, 2006 Share Posted February 19, 2006 I would tend to think 2 and 5 feed the relay that switches from fast to slow speeds of the rotor. One pin is AC hot and the other is AC neutral/return. Link to comment Share on other sites More sharing options...
rod76 Posted February 20, 2006 Share Posted February 20, 2006 Uncle Harvey's Guide to Leslie Pin-outs http://www.captain-foldback.com/Leslie_sub/pinouts.htm hope this helps Link to comment Share on other sites More sharing options...
blue and white Posted February 20, 2006 Author Share Posted February 20, 2006 Thanks, but what I really want to know is basically how to activate the motors externally via some sort of breakout box similar to the Leslie Combo Preamp pedals. Except I wouldn't need the preamp or anything. Just a way to feed a Leslie with a standard interface. Thanks for your help, though, Mike. Link to comment Share on other sites More sharing options...
Prague Posted February 20, 2006 Share Posted February 20, 2006 A simple on/off switch would work. Link to comment Share on other sites More sharing options...
blue and white Posted February 20, 2006 Author Share Posted February 20, 2006 Originally posted by Prague: A simple on/off switch would work. Thanks, this was what I was hoping to hear. (instead of having to build some sort of special something ) Although, where do I put the switch in the circuit? Between two pins or between mains and pin 2/5? Link to comment Share on other sites More sharing options...
Hammodel AV Posted February 21, 2006 Share Posted February 21, 2006 I have made my own pedal switch. The purpose of pins 2 and 5 is to apply A/C to a relay. What you want to do is bridge pins 4/5 (I did this in the Leslie 6-pin plug) for one side of the A/C and then put your Leslie chorale/tremolo switch between pins 2 and 3. Voila, you will have speed switching! But remember, the signal applied to pins 1 and 6 needs to be fairly hot. An organ provides about 2 volts P-P signal, versus about 1 volt for an aux level signal. You'll need a preamp. Hammond T-582A, Casio WK6600, Behringer D Link to comment Share on other sites More sharing options...
blue and white Posted February 22, 2006 Author Share Posted February 22, 2006 Awesome! Thanks, I've already got a nice tube pre-amp that will fit the job quite nicely. I just didnt want to have to go out and hunt for one of those Leslie combo pre-amps or spend the $300-ish on the trek II one. I'll let you guys know how it works out when I've got it all done. Link to comment Share on other sites More sharing options...
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