Connecting PSU to AMP (with 9 wires) - diyAudio
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Old 3rd November 2004, 09:49 AM   #1
cedus is offline cedus  France
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Default Connecting PSU to AMP (with 9 wires)

Hi everybody !

I am currently building a dual mono TNVBIGC
Everything is running fine. The casing is done and electronic is on its way. The only point I am still wondering is the link between my PSU case and the two amps case.
I have 9 wires to link to each amp case :
4 x 25 V AC (for the amp circuit)
2 x 25 V AC (for the valve circuit)
2 x 10 V AC (for the valve heater)
1 for the Ground

The thing is I only want one plug for each amp wich means a plug with 8 connectors.

I was thinking first of Speakon but I cannot find any with 9 connectors.

Has anybody an idea for me ?
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Old 3rd November 2004, 11:06 AM   #2
moamps is offline moamps  Croatia
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Hi,

good connectors are Harting, Amphenol, ...

http://www.farnell.com/datasheets/36400.pdf

Regards,
Milan
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Old 3rd November 2004, 07:52 PM   #3
cedus is offline cedus  France
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Thank you very much !

The only problem is the price. More expensive than all the electronics parts together (including the valve). Is there any cheaper way.

Could I use Sub-D 25 with 2 pins per wire like in this thread :

http://www.diyaudio.com/forums/showt...843#post504843
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Old 4th November 2004, 08:30 AM   #4
dangus is offline dangus  Canada
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Is there anywhere you can purchase surplus equipment or connectors?

Cinch Jones connectors come in various sizes, they're rugged, with 10A rating, and not expensive:
http://www.cinch.com/products_main.cinch#29
If you can't get them over in .fr, maybe there's something similar.
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Old 4th November 2004, 01:34 PM   #5
cedus is offline cedus  France
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That's a great idea ! It seems to be exactly what I was looking for.

I just have to find where to buy them !Even in the States. The dollar is so low that it's often cheaper to buy stuffs in the States and pay the shipping than buying them here in Europe.
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Old 4th November 2004, 03:44 PM   #6
markp is offline markp  United States
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Old military stuff has great connectors with lots of heavy gauge pins. They often have threadded rings to hold them securely.
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Old 4th November 2004, 03:46 PM   #7
markp is offline markp  United States
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Also look into 'Molex' type connectors. They are used very often in all sorts of electronics.
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Old 4th November 2004, 05:36 PM   #8
cedus is offline cedus  France
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I thought of Molex but the only problem is attaching the connector to the box !
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Old 4th November 2004, 05:41 PM   #9
markp is offline markp  United States
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It needs a square hole which can be tough to make but if you drill a round hole and file the corners it works. They have chassis mount female connectors just for this use that click into the square hole.
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Old 4th November 2004, 09:06 PM   #10
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Default Re: Connecting PSU to AMP (with 9 wires)

Quote:
Originally posted by cedus
I have 9 wires to link to each amp case :
Bah, I can do it in two:
2 x 120VAC to amp

Incidentially, I don't need a seperate PSU either. The system works!

Tim
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