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cables from power supply to tube mono blocks
cables from power supply to tube mono blocks
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Old 6th February 2016, 12:38 AM   #1
rdowdall is offline rdowdall  United States
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Default cables from power supply to tube mono blocks

Hello - What type of plug/cable combination would be used to connect mono-blocks (300b) to an external power supply?

Thanks,
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Old 6th February 2016, 01:14 AM   #2
anatech is offline anatech  Canada
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cables from power supply to tube mono blocks
Hi rdowdall,
Can't you build it with the power supply on the same chassis?

If you must, look up industrial connectors and wire that will withstand both the voltage and current you are transferring. Once that has been done, look up industrial connectors that will also handle the voltages and current. Leave lots of head room with the ratings, and spacing the HT physically away from the low voltage wiring is a good idea. Lastly, the mating plug and socket should be locking.

You will find that you probably are not going to like the prices, be forewarned. I do wish you good luck in your quest.

-Chris
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Old 6th February 2016, 01:18 AM   #3
rayma is offline rayma  United States
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Quote:
Originally Posted by anatech View Post
You will find that you probably are not going to like the prices, be forewarned.
Sometimes surplus houses will have these types of connectors..
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Old 6th February 2016, 01:23 AM   #4
rdowdall is offline rdowdall  United States
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Default Power Cables

Thanks for the replies, the power supply is kept separate to eliminate the noise that is produced by the transformers. The mono blocks are 300B otl amplifiers.

I'll take a look around.

Thanks again
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Old 6th February 2016, 01:23 AM   #5
anatech is offline anatech  Canada
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cables from power supply to tube mono blocks
Hi Rayma,
Yes, absolutely. But rdowdall needs to be sure of what he is buying.

Hi rdowdall,
Why not make a list of possible plug and connectors, then you can look for these in surplus stores. Same for the wiring. Because this is a safety issue, please make certain you are using properly rated materials.

Now the good news. These connectors have been manufactured for decades. They are pretty standard, so your chances of finding what you need may be better than you think.

-Chris
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Old 6th February 2016, 01:37 AM   #6
rdowdall is offline rdowdall  United States
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What are your thoughts about using XLR type connectors? Like Neutrik NC3FD-L-1 "D" Series Panel Mount XLR Connector. Voltage will be max of 135v 2.2amps
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Old 6th February 2016, 01:40 AM   #7
anatech is offline anatech  Canada
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cables from power supply to tube mono blocks
Hi rdowdall,
I am very uncomfortable about that. Don't use a connector that is commonly used for a different purpose!

To see is a connector is suitable, look it's data sheet up. Please, don't use a connector commonly used for something else. You might even get burned by it later on.

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Old 6th February 2016, 01:43 AM   #8
rayma is offline rayma  United States
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Quote:
Originally Posted by rdowdall View Post
What are your thoughts about using XLR type connectors?
Like Neutrik NC3FD-L-1 "D" Series Panel Mount XLR Connector. Voltage will be max of 135v 2.2amps
Use only connectors that are specifically rated for more than sufficient voltage for your purpose.

If you are connecting with AC voltages, you may be able to use standard power connectors.
This plug/socket pair could connect the ends of two captive cables together for up to 250AC/20A.
The male plug goes on the amplifier cord, and the female socket goes on the power supply cord.
In this way, you cannot be shocked by unplugging the connectors while they are live.
http://www.stagelightingstore.com/Hu...paign=products
http://www.stagelightingstore.com/Hu...onnector-Black

If it is DC that you are connecting, that is even more risky business.

Last edited by rayma; 6th February 2016 at 02:08 AM.
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Old 6th February 2016, 02:19 AM   #9
rdowdall is offline rdowdall  United States
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Hi rayma - I would need a rear panel mount to plug into.

This hardware looks like it would work: rated at 250v 12a

C016-30D006-100-12 Amphenol Tuchel Connector Buy @ PEI-Genesis C01630D00610012
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Old 6th February 2016, 02:23 AM   #10
anatech is offline anatech  Canada
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cables from power supply to tube mono blocks
Yup,very close on the current. It would work well for a limited amount of time.

Pick a connector that is rated at 5 amperes maybe. What the current rating does is tell you how great the temperature rise of the contacts will be. A 2 ampere rating means you will be running at the maximum heat level. Nothing likes heat, and that is what will eventually kill that connector pair and the ends of the wire.

You are on the right track though.

-Chris
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