question on old tube sockets

jarthel · 18th June 2007, 05:51 AM

These sockets (http://i9.ebayimg.com/04/i/08/73/5c/01_1.JPG) are sold cheaply in ebay.

Has anyone used something similar before? How is the quality? Does it break often?

also in this photo: http://i20.ebayimg.com/04/i/08/7a/38/ba_1.JPG, what is the purpose of the metal tube in the middle?

Thanks for the reply.

Colt45 · 18th June 2007, 06:39 AM

The first kind you show (wafer) is generally pretty good, electrically at least... but they're ugly. Good for breadboarding and such.

The metal tube is just to use as a tie point.. generally ground

richwalters · 18th June 2007, 06:14 PM

If you are after Int Octal (IO).... hunt for the old phenol McMurdo types. Phenol may have been banned but the original brass contacts are far more rigid than the ceramic white chinese ones which are way too sloppy for large tubes.

richj

jarthel · 18th June 2007, 10:32 PM

Quote:

Originally posted by Colt45
The first kind you show (wafer) is generally pretty good, electrically at least... but they're ugly. Good for breadboarding and such.

but it wouldn't matter I suppose if it's mounted at the bottom

18th June 2007, 05:51 AM	#1
jarthel diyAudio Member Join Date: Jan 2002 Location: somewhere in Australia	question on old tube sockets These sockets (http://i9.ebayimg.com/04/i/08/73/5c/01_1.JPG) are sold cheaply in ebay. Has anyone used something similar before? How is the quality? Does it break often? also in this photo: http://i20.ebayimg.com/04/i/08/7a/38/ba_1.JPG, what is the purpose of the metal tube in the middle? Thanks for the reply.

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18th June 2007, 06:39 AM	#2
Colt45 diyAudio Member Join Date: Feb 2002 Location: Canada	The first kind you show (wafer) is generally pretty good, electrically at least... but they're ugly. Good for breadboarding and such. The metal tube is just to use as a tie point.. generally ground

18th June 2007, 06:14 PM	#3
richwalters diyAudio Member Join Date: Sep 2003 Location: Alps:Tube amp designs over 150W, SMPS guru.	If you are after Int Octal (IO).... hunt for the old phenol McMurdo types. Phenol may have been banned but the original brass contacts are far more rigid than the ceramic white chinese ones which are way too sloppy for large tubes. richj