I need a cable making!

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I need a cable making!

Post by The Elf »

I need a cable constructing from an 11-pin Leslie connector to a couple of jacks and power connector. I have pics and a guide for how this cable needs wiring.

This cable will deliver power and audio from my Hammond XK-5 to my Neo Ventilator 2, and send controls for fast/slow Leslie speeds.

I need it doing well, and I need a spare, so I'm not trusting my 'bodger's skills'! :crazy:

Does anyone know of anyone who could engineer this for me? I'm happy to pay a fair rate for a fair job.
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Re: I need a cable making!

Post by The Elf »

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Re: I need a cable making!

Post by Kwackman »

Orchid Electronics?
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Re: I need a cable making!

Post by The Elf »

I'll admit that Orchid was my first thought, but I know he's a busy, busy man.
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Re: I need a cable making!

Post by Hugh Robjohns »

The biggest challenge is finding an 11pin Amphenol plug with covering shell. I've only ever seen them for sale in America, and most outlets only sell either the plug itself without the cable cover, or a complete plug and socket pair!

But if you can import the plugs, wiring them up is not difficult and, unlike most other Leslie connectors, there's no nasty mains power lurking amongst the 11 pins!

The Neo website has a slightly clearer explanation of the wiring requirements.
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Re: I need a cable making!

Post by Luke W »

Hugh Robjohns wrote: Fri Aug 19, 2022 1:45 pm The biggest challenge is finding an 11pin Amphenol plug with covering shell. I've only ever seen them for sale in America, and most outlets only sell either the plug itself without the cable cover, or a complete plug and socket pair!

I just discovered this whilst having a quick nose for said plugs, all of the suitable options looked to be in the US.
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Re: I need a cable making!

Post by Hugh Robjohns »

Elf, if you want to import some Amphenol plugs I'll happily make up the adapters for you. I need one for my SKX anyway and haven't got around to it yet!

My XK1c uses an 8-pin and ready made adapter cables are available for that from Thomann amongst others.
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Re: I need a cable making!

Post by Wonks »

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Re: I need a cable making!

Post by Hugh Robjohns »

Yes... from 'Leeds Radio'. Old stock or possibly recycled, and only one left of the plug and back shell! :-(
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Re: I need a cable making!

Post by Folderol »

Looks suspiciously like the old octal style 11pin plugs often mated with 11pin relay bases - not seen one for decades!
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Re: I need a cable making!

Post by James Perrett »

The 86CP11 plugs are available from Farnell although they come from their US warehouse so there is an additional import charge on each order.

https://uk.farnell.com/cooper-interconn ... dp/1311360

Unfortunately the cap is out of stock

https://uk.farnell.com/cooper-interconn ... dp/1302504

though the one with the metal strain relief is in stock but very expensive

https://uk.farnell.com/cooper-interconn ... dp/1311311
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Re: I need a cable making!

Post by The Elf »

Heck! I didn't think that finding the parts was going to be the tough bit! :lol:

I'm over in the States in a couple of weeks. Anywhere in the Omaha area that may have these plugs and caps?
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Re: I need a cable making!

Post by The Elf »

Hugh Robjohns wrote: Fri Aug 19, 2022 2:24 pm Elf, if you want to import some Amphenol plugs I'll happily make up the adapters for you.

Happy to do that if anyone can tell me who has them.
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Re: I need a cable making!

Post by The Elf »

I've grabbed the Leeds Radio plug and cap, so at least I have one.

Never even considered the parts were going to be hard to find. There are thousands of Hammonds and Leslies out there, but presumably people just buy ready made cables.
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Re: I need a cable making!

Post by Luke W »

The Elf wrote: Fri Aug 19, 2022 3:30 pm Never even considered the parts were going to be hard to find. There are thousands of Hammonds and Leslies out there, but presumably people just buy ready made cables.

And those cables seem to be exclusively available in the "very long and even more expensive" variety!
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Re: I need a cable making!

Post by Hugh Robjohns »

Not that I know of, but you could order the parts from BB Organ and have them shipped in advance to wherever you're staying or working with in the US, and then bring them back in your baggage.

https://www.bborgan.com/collections/typ ... %20Sockets

For each cable adapter set you'd need one Amphenol Male Plug 11 pin ($13.99) and one Leslie Cap package ($16.99). The cables, TS/TRS plugs and DC power plug/sockets we can obviously source in the UK.

If you're up for it, add a set for me!
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Re: I need a cable making!

Post by The Elf »

Hugh Robjohns wrote: Fri Aug 19, 2022 5:01 pm Not that I know of, but you could order the parts from BB Organ and have them shipped in advance...

I'm up for it, but I've done this for a few items already, and I don't want to wear out my hosts' good will! I'll see what I can do...

Done!

It will be a while, but I'll get it to you in a few weeks.
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Re: I need a cable making!

Post by Hugh Robjohns »

Luke W wrote: Fri Aug 19, 2022 3:40 pmAnd those cables seem to be exclusively available in the "very long and even more expensive" variety!


I've only found an 8-pin version for the SK1/2 and XK1c models from Thomann:

https://www.thomann.de/gb/hammond_neo_v ... _cable.htm

And an 11-pin version intended for the obsoleted Leslie 12C speaker from Sweetwater.

https://www.sweetwater.com/store/detail ... le-10-foot

However, the latter costs a ludicrous $100, the fast/slow connections are reversed for a Neo Vent, and it doesn't have a B+ connection to tell the Hammond that the (fake) Leslie is connected which might be a bit of a drawback if you wanted to bypass the internal Leslie effect.

I am surprised, given the number of modern Hammond Clones and the popularity of the neo that suitable adapter cables aren't more readily available.
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Re: I need a cable making!

Post by The Elf »

As above, I've ordered a couple of 11-pin and caps for both of us.
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Re: I need a cable making!

Post by Hugh Robjohns »

Ooh! You are keen! :lol: Thanks!

I'll source the quarter inch plugs and cable then.

What do you want to do about the B+ power supply?

The DIY page on the Neo website suggests looping the Neo's own PSU via the Hammond plug, but it might be more flexible to use a separate +12V supply. let me know when convenient.
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Re: I need a cable making!

Post by The Elf »

Hugh Robjohns wrote: Fri Aug 19, 2022 5:52 pm What do you want to do about the B+ power supply?

I assume the power comes from the XK5's 11-pin socket to the Neo? At least that's what the diagram and photo in my first page post seem to imply?

(This is why I didn't trust myself to make this cable!) :lol:
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Re: I need a cable making!

Post by Hugh Robjohns »

The Elf wrote: Fri Aug 19, 2022 5:57 pmI assume the power comes from the XK5's 11-pin socket to the Neo? At least that's what the diagram and photo in my first page post seem to imply?

Sadly not.

That square blob on the left of your diagram labelled 'pwr' is a socket which expects to receive a +12V DC supply, and route it to the XK5 on pin 11 to tell it that a (fake) Leslie is connected. Without that external voltage the internal Leslie processing won't be bypassed and the onboard Leslie switches won't control the external unit.

So... you need to squirt 12V into the 11 pin plug, but it only needs the voltage; it doesn't draw any significant current...

And you also need to pump 12V into the Neo pedal...

So one reasonably practical option would be to wire a 12V supply into the 11 pin socket, with a loop-through to power the Neo. That's the suggested arrangement in the DIY article on Neo's website anyway. Alternatively, you could use a separate 12V wall wart wired into the 11-pin just for the organ.

Interestingly (if you're that way inclined), the XK1c and SK1/2 use an 8-pin Din for the Leslie connection, and that just needs to see a ground on one pin to think there's an attached (fake) Leslie, which is much more sensible.
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Re: I need a cable making!

Post by The Elf »

Oh, that's a shame. I was hoping to avoid the horrid PSU. Oh well, I suppose that's why the photo shows an in-line power socket, so that the Vent's own PSU I have can be plugged into the line connector, or removed to put things back as they were. Makes sense now.
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This is much more complicated than I thought. I'm increasingly glad I didn't attempt it myself!
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Re: I need a cable making!

Post by Forum Admin »

Folderol wrote: Fri Aug 19, 2022 2:45 pm Looks suspiciously like the old octal style 11pin plugs often mated with 11pin relay bases - not seen one for decades!

My 1970s custom pedalboard which my dear Dad built for me used an Amphenol connector just like this -- it took power from my H/H VS Musician amp (which is in storage) and that had a similar connector on the rear panel. My pedalboard used relays for its on/off "buttons" which gave me silent-switching back in the day.

I don't know what became of the pedalboard - it might be in my Dad's loft (attic) or has long since been scrapped. I suspect the latter as it had two central pedals, one being a Colorsound wah-wah, the other a volume swell pedal. I found the way-wah pedal minus its bottom casing, in my recent studio clearout.

So, in short, not sure I can help you here.
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Re: I need a cable making!

Post by The Elf »

:D

I love these stories. This is what the nursing home is going be like like! :lol:

Thanks to all for your help. I'll be sure to show off Hugh's work when we get it all sorted.
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