BIAS Thing-a-ma-jig

FrankRoss · 5th November 2006, 11:57 PM

When I build a custom chassis for my amp (Stereo 70 mod'ed to Van Alstine Super 70i) I regretably retained the original Dynaco tube sockets. Recently, several "problem" socket terminals have surfaced, so now I'm just going to change all of them out.

Anyway, the original Dynaco amp used a couple of empty tube sockets for BIAS checking, so instead of mucking up the chassis I left the 2 wires dangling inside (taped up).

While I'm in there, I want to mount something small on the chassis so that I can just stick a probe in there to check BIAS, but a couple of tube sockets just won't look good. What do you guys use, and can you recommend a site where I can purchase it/them?

FrankRoss · 6th November 2006, 02:36 PM

Bump - because after searching, I really don't know what to search on!

janneman · 6th November 2006, 02:44 PM

Quote:

Originally posted by FrankRoss
Bump - because after searching, I really don't know what to search on!

Look for 'test jacks' at places like Digikey. There are small (in Europe 1mm dia) hole ones that take standard multi meter test probe points.

Jan Didden

FrankRoss · 6th November 2006, 02:58 PM

Bingo! Thanks janneman.

CarlyBoy · 9th November 2006, 01:54 AM

You might also try "tip" jacks (Allied, for example).

5th November 2006, 11:57 PM	#1
FrankRoss diyAudio Member Join Date: Nov 2001 Location: Pennsylvania	BIAS Thing-a-ma-jig When I build a custom chassis for my amp (Stereo 70 mod'ed to Van Alstine Super 70i) I regretably retained the original Dynaco tube sockets. Recently, several "problem" socket terminals have surfaced, so now I'm just going to change all of them out. Anyway, the original Dynaco amp used a couple of empty tube sockets for BIAS checking, so instead of mucking up the chassis I left the 2 wires dangling inside (taped up). While I'm in there, I want to mount something small on the chassis so that I can just stick a probe in there to check BIAS, but a couple of tube sockets just won't look good. What do you guys use, and can you recommend a site where I can purchase it/them?

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6th November 2006, 02:36 PM	#2
FrankRoss diyAudio Member Join Date: Nov 2001 Location: Pennsylvania	Bump - because after searching, I really don't know what to search on!

6th November 2006, 02:58 PM	#4
FrankRoss diyAudio Member Join Date: Nov 2001 Location: Pennsylvania	Bingo! Thanks janneman.

9th November 2006, 01:54 AM	#5
CarlyBoy diyAudio Member Join Date: Aug 2006	You might also try "tip" jacks (Allied, for example).

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