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Old 21st September 2008, 09:28 PM   #1
exurbia is offline exurbia  Australia
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Question British seven pin sockets

HELP!!!!!

I need some B7 valve/tube sockets. They appear to be rarer than rocking horse poo. I managed to buy two of them from a pom supplier. 6 more would see my amp up and running.

If anyone has some, payment can take many forms, i've got lots of tubes to trade or sell. Quite a few obscure ones as well so you can build something different.
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Old 21st September 2008, 11:50 PM   #2
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Do a websearch on "Bob's Tube Audio" which will lead you to an ebay store here in Adelaide South Oz. Use the contact seller link to get in touch with Bob. That is Bob Rundle. He has been around the electronics industry in SA for yonks as everything from a Trade School lecturer to designing, building and selling medical equipment to hospitals. These days he runs an on-line tube store as a "semi-retirement" job and has a network of suppliers including being the local agent for Hammond and for Mable Exporting in China.
See on-line catalog.
http://www.mableaudio.com/www-web/cp...huguang%20tube
Since he knows everyone on the local scene he can often source your NOS tube requirements.
If you ever make it to Adelaide he opens the store 12.00 to 5.00 Fridays and Saturday afternoons for counter sales / tube nutters social event.

He will be able to supply what you need. Also his prices as very competative.

Cheers,
Ian
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Old 22nd September 2008, 12:03 AM   #3
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like this?
http://cgi.ebay.com/7-PIN-BRITISH-CE...742.m153.l1262

or this?
http://cgi.ebay.com/7-PIN-BRITISH-PA...742.m153.l1262

I've ordered some caps from this seller in the past and had good luck with him.
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Old 22nd September 2008, 07:23 AM   #4
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Out of interest, what kind of tubes - er, valves - do you have with B7 bases? I used to buy old radio sets from jumble sales when I was a teenager and many of them had B7 and B9 bases. I don't remember any of them being much good, though.
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Old 22nd September 2008, 07:26 AM   #5
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Ray,
6AQ5 comes immediately to mind. A lovely little (6V6'ish) output pentode.
Cheers,
Ian
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Old 22nd September 2008, 09:24 AM   #6
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Hi Ian,

That's a B7G base you're talking about. B7 and B9 were used by antediluvian valves, many of which had 4 v parallel heaters or 200 mA or 300 mA serial heaters. They were big, mainly coke-bottle shaped bottles, often bigger than octals. Their performance was generally mediocre, as I recall.
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Old 22nd September 2008, 09:29 AM   #7
exurbia is offline exurbia  Australia
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Smile very nice KT44

Ian, thanks for the info. i will be in touch to find my sockets.

Ray, the KT44 came with a 7 pin base, a very nice valve that is a 4 volt KT66.
Cheers,
Peter.
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Old 23rd September 2008, 09:28 AM   #8
316a is offline 316a  England
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Default Re: British seven pin sockets

Quote:
Originally posted by exurbia
HELP!!!!!

I need some B7 valve/tube sockets. They appear to be rarer than rocking horse poo. I managed to buy two of them from a pom supplier. 6 more would see my amp up and running.

If anyone has some, payment can take many forms, i've got lots of tubes to trade or sell. Quite a few obscure ones as well so you can build something different.
Got some ceramic , bakelite and paxolin . Email if you need any

cheers

316A
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Old 23rd September 2008, 11:23 AM   #9
405man is offline 405man  Scotland
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Does anyone know where to get matching plugs

Stuart
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Old 23rd September 2008, 11:25 AM   #10
316a is offline 316a  England
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Quote:
Originally posted by 405man
Does anyone know where to get matching plugs

Stuart
Sure . You just bosh off the bases from faulty valves

cheers

316a
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