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Old 27th July 2011, 06:52 AM   #1
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Join Date: Sep 2005
Default WTB 4 Pin tube base

Hello

I have a need for 2PC 4pin tube base like 300B etc.
I'm only interested porcelain base. I want to use the as a connector for 900V my tube project.
If you have broken tubes etc please contact .
Also if someone has some idea how to connect 900V (separate power supply) to the amplifier safely please let me know.
Thank you very much

Greetings gabor

Last edited by gaborbela; 27th July 2011 at 06:54 AM.
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Old 27th July 2011, 08:58 AM   #2
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some chinese ebayers have some for a few pop's each . ceramic gold plated just what you need . bakelite is more common tho . works just as fine if you know what your doing .
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Old 27th July 2011, 09:00 AM   #3
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811R-G Tube 4 Pin Tube Base GOLD Socket (2 pcs) 300B | eBay

not sure if that is ceramic might ask the seller .
silicon resin will isolate just fine i think
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Old 27th July 2011, 01:48 PM   #4
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Thank you
Definitely that is what I'm looking for. I didn't found one when I did search on ebay.com
I afraid from bakelite or any type of plastic even from Teflon at 900V..
I purchased some Chinese military connector for low voltage, but I can not use that for 900V.
http://cgi.ebay.ca/ws/eBayISAPI.dll?...=STRK:MEWAX:IT
These probably safe until 600V, who knows..
I know porcelain it is OK, I have to ask the guy if there is inside some material so I can solder the wire on the base (in these case connector) It look like it has a pipe type of pins s I can solder the wires
Thank one more time

Greetings
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Old 27th July 2011, 03:48 PM   #5
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those pins must be hollow . just take silicon covered wire like in HV stuff or cat III connectors could do . you know those insulated banana plugs
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Old 27th July 2011, 04:19 PM   #6
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Hello v4lve lover

I can solder the wire from another side so the pins where connect remain empty.
Do you think these have to be shielded?
I can't use CAT3 wire connector. If you think about that I attached no way to use that for 900VDC.

Greetings gabor
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