The Nord C1, C2 and C2D Organ Forum

Nord C2 to Leslie 130 ?

Postby Mooser » 24 Nov 2013, 23:36

I have my C-2, which I plug into a Motion Sound with a 1/4" plug. The Nord C-2 also has an 11-pin plug. I happen to have (don't ask me why) a Leslie 130 (one rotor, 12" speaker, solid state amp, Formica finish) which has an 11-pin plug. And I have an 11-pin cord.

Can my Nord C2 be plugged into the Leslie 130 without a problem? Do all 11-pin sockets and plugs match?

I don't want the organ to blow up before until I'm ready to buy a C2D. In the meantime, can I use the 130 for additional Leslieness?

This may be the kind of question only prehistoric pachyderms can answer definitively. I'll hope for the best. I should probably leave a large trough of Amarula around to attract one.
Last edited by Mooser on 24 Nov 2013, 23:41, edited 2 times in total.
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Nord C2 to Leslie 130 ?


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Re: Nord C2 to Leslie 130 ?

Postby tacitus » 25 Nov 2013, 12:56

According to Uncle Harvey's Lelie Guide:

ELEVEN PIN SYSTEM - All later and current Leslie designs have eleven conductor cables. Current UL, CSA, and other standards no longer allow AC power to supplied from the console so connecting cables supply only signal and control voltages. 11-pin Leslies have separate power cords and are, for most part, electrically interchangeable.
PIN COLOR Models: 740 and 750 (typical). Not all pins are connected in Leslie models with fewer channels or features.
1 Brown ROTARY CHAN INPUT [All except specialized models without the rotary feature]
2 Red MAIN CHAN/NON-ROTARY INPUT [Leslie models with two or more channels]
3 Orange AUXILIARY #1 INPUT [Leslie models with three or more channels]
4 Yellow SIGNAL/DC GROUND [Pin 4 and 5 usually wired together at the organ]
5 Green CONTROL SUPPLY COMMON
6 Blue CONTROL CIRCUIT COMMON [Switching pin 6 to pin 5 turns Leslie on]
7 Violet FAST MOTOR CONTROL [Switching pin 7 to ground turns on tremolo]
8 Gray SLOW MOTOR CONTROL [Switching pin 8 to ground turns on chorale]
9 White EXTERNAL SPEED ADJUST [Never implemented, pin 9 is usually no connection]
10 Black AUXILIARY #2 INPUT [Four channels models only]
11 White/Black +24VDC OUTPUT [For preamp power or Leslie "sensing" circuits in some organs]

So it's not definitive but it looks as if it's fairly unlikely to make anything explode. I used Uncle Harvey's website to help work out the connections for a non-Leslie rotary on a 9-pin socket and it's old enough to have mains in there as well. No problem, and it's up and running fine, with a home-built adapter loom.

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Re: Nord C2 to Leslie 130 ?

Postby pablomastodon » 25 Nov 2013, 21:36

All I can say is have your fire extinguisher at the ready...lol.

But seriously, that's no problem. Uncle Harvey wasn't lying! ;-)


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Re: Nord C2 to Leslie 130 ?

Postby Mooser » 26 Nov 2013, 23:22

Thanks very much, Pablo and tacitus. I will plug the C2 into the 130 and see if it adds to the sound. I use the 130 with a "kit" (which uses those awful new-style toggle switches) on my M3.
The thing is, I'm trying to work my wife around to accepting the purchase of a Leslie 3300, and she knows all the arguments against a one-cabinet system I made earlier when I wanted a two-piece (separate top and bottom) Leslie system, and she has a memory like a Nord Keyboard Service Manager!
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Re: Nord C2 to Leslie 130 ?

Postby flmc59 » 27 Nov 2013, 18:19

With the motion sound pro3x a 130 will add a lot.of reflections. A bottom rotor is a big part of the sound.
The you should take the signal from the the motion sounds sim out. Set the sim controls to 0. This way you get the correct x over point.
You may have to boos the signal before the 130 unless you have a leslie preamp.
Build a box with two relays so you can control the 130 and the motios sound from the same switch

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Re: Nord C2 to Leslie 130 ?

Postby tacitus » 29 Nov 2013, 11:26

It's odd, isn't it, Mooser, that wives can't remember a thing about gear generally expect the arguments that stop you buying more. And especially an argument you've used once that will come back to bite you in the bum.

Fortunately, Mrs tacitus bought a cor anglais a few years back (from Howarth's in London, which, as woodwind aficionados will know, ain't cheap) and it's sat in its case doing nothing for pretty well all that time, so I generally relate gear purchases to fractions of a cor anglais ("yes, dear, but it only cost a third of the cor anglais and I will use it a LOT more"). I've got her on the usage side but if she's awake she can sometimes get me on the depreciation side as we could sell the cor for pretty much what it cost.

My other problem is space, as my gear store is a princely 6' square and I can't fit the Sonorous 605 speaker in there at all. But that was cheap, so it's a visible reminder of how little I spend. Logical, in a strange kind of marital way.

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Re: Nord C2 to Leslie 130 ?

Postby Mooser » 29 Nov 2013, 22:01

Flmc, I wanted a two-piece (rotating top, sim bottom) to work because of the volume-loss in the down-firing woofer-and-baffle. But it isn't the same. In fact, I actually turn the bottom speaker (TrueSonic powered speaker 15" 400w) away from me, towards the wall, for the best sound. I've got no plans of moving the 130, it'll stay at home. I get your point (and thanks!) about the x-over point, it should be determined by the Pro 3x if they are used together.

Tacitus, although I am usually able to preserve my sang-froid in the face of female blandishment of one type or another, hearing my own words about the volume-stealing tendencies of down-firing woofers thrown back in my face had me non-plussed. And I could almost say she had a triumphant smirk on her face when she said it. Yes, that may have very well been a smirk. Such are the vicissitudes of living under marital law, I guess. And I am still limping along with a C2. No "D" for me.
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Re: Nord C2 to Leslie 130 ?

Postby steverobert » 01 Dec 2013, 06:44

I have grown convinced that indeed the 3300 is the way to go - but yes - getting it past the mrs - is the problem. A friend of mine suggested a good approach - although it may be somewhat difficult with the 3300 - but the thing is to find a bunch of information about "some" " similiar" product - but one that is MUCH more expensive. Write to the manufacturer - and get actual glossy sales literature about it - and leave it laying around the house - on the coffee table - and especially in the bathroom. The gather Sales Advertisements - from as many sources as possible. Leave these around as well - and it would be good to put some on the frige. Replace them periodically with lower priced ones - from other sources - but make sure the price is always WAY WAY higher than the actual price of the thing that you really want to get - in this case a Leslie 3300. In the evenings - dummy up phone calls to "dealers" - where you discuss (with in her ear range) the absurdly high cost - and be heard bickering like crazy about it. Eventually - she will not be able to stand it - and she will ask if you are actually thinking about buying one of "those". You tell her "of course not - WAY to fricken expensive - thank God - I've found something that's almost as good - but WAY cheaper - and now - victoriously - you show her the add for the thing that you really want ( this time the 3300) and during the moment of her extreme relief - you dial up Musician's Friend and order it - right in front of her - and BAM it is done - before she comes to her senses. When she asks you later about it you say - honey - you were standing right there - if you had something to say - you should have said it then.

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Re: Nord C2 to Leslie 130 ?

Postby Mooser » 01 Dec 2013, 20:32

Those are assuredly some good techniques to raise questions in my wife's mind. Unfortunately, mine shoots first, and asks questions later. And the first thing she'll do is shoot a hole in my checkbook, and she's quick on the with-draw, if you get my drift.
I even resorted to a sort of hunger-strike, refusing my dinner, while striking poses fraught with self-abnegation (whatever the hell that is!). She was immediately sympathetic and fell in with my plans. Some quick work with a hand calculator and she informed me I could save enough for a 3300 in about 15 years, by not eating.

And a 3300 is the least expensive way to go! Costs less than the 2-piece Leslie system, and is smaller. Costs less than a repro wooden Leslie 122 xb or 971. But I don't know why I'm telling you this. You're already married.
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Re: Nord C2 to Leslie 130 ?

Postby tacitus » 04 Dec 2013, 16:31

I will be getting a 3300 eventually, probably when we rebuild the kitchen which will have a knock-on effect with storage throughout tacitus towers. Fortunately, our finances are completely separate, so the space issue is one of the biggest obstacle to accumulating more gear.

Currently I can use my Sonorous 602, though it's a bit big to cart round with me. My main speakers are a pair of db technologies 8" actives with a 12" sub, all active - total cost about £750 IIRC. That's a pretty big sound and ideal for the pipe organ, but I reckon I could just about squeeze a 3300 in the back of my Skoda with the C2D and the present speakers and then I'd be done (for the moment, anyway).
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