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Loose Tube sockets 12BY7 on HK Citation 2

75.24.111.233
Posted on May 27, 2020 at 17:16:56
ibmsales@bellsouth.net
Audiophile

Posts: 6
Location: GA
Joined: February 5, 2020
 Hello

I just wondered if anyone was able to tighten the tube sockets without replacing the socket itself, I have 2 sockets that will crackle if the tube is moved slightly. I have Deoxit them and they work better but after a few weeks the same problem occurs when the tube is touched,

Thanks!

 

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RE: Loose Tube sockets 12BY7 on HK Citation 2, posted on May 27, 2020 at 21:09:45
Eli Duttman
Audiophile

Posts: 10455
Location: Monroe Township, NJ
Joined: March 31, 2000
 Try a dental pick as the retensioning tool. If that fails, contact Jim McShane for the proper replacement sockets.


Eli D.

 

RE: Loose Tube sockets 12BY7 on HK Citation 2, posted on May 28, 2020 at 02:59:40
Story
Audiophile

Posts: 10432
Location: NJ
Joined: December 11, 2000
 you can also re-tension sockets with a sewing needle as it's a bit slimmer than a dental pick. Whatever you choose do it carefully



 

RE: Loose Tube sockets 12BY7 on HK Citation 2, posted on May 28, 2020 at 04:50:16
ibmsales@bellsouth.net
Audiophile

Posts: 6
Location: GA
Joined: February 5, 2020
 Thanks for the tip, Sounds like worth trying, I'll take my time....

 

RE: Loose Tube sockets 12BY7 on HK Citation 2, posted on May 28, 2020 at 05:53:09
ibmsales@bellsouth.net
Audiophile

Posts: 6
Location: GA
Joined: February 5, 2020
 Worked, Used a medium-size HD needle and looked closely at the inside of the socket, found 3 pins and ran the needle down both sides of each pin, I had to do one a couple of times, I found if you go straight down it closes the pin, no static or breaks in the sound, Great Tip, Saved me a lot of hassles changing pins on a +60 year HK Citation 2

THANK YOU! Everybody

 

Glad it worked... and a warning, posted on May 28, 2020 at 10:22:48
Bill Way
Audiophile

Posts: 1884
Location: Toms River NJ
Joined: May 28, 2012
Contributor
  Since: December 14, 2012
 If the sockets are soldered onto PCBs, de-soldering them is REALLY hard to do. They are designed to fit tightly, so there is always some solder that just doesn't want to let go. I replaced sockets on a Manley amp and EveAnna was horrified when she saw what I was doing. Now I know why. It took forever.

So bend them back into shape. Be patient. Finish with Deoxit and skinny little wire brushes if you have them.

Cheers,
WW
"Put on your high heeled sneakers. Baby, we''re goin'' out tonight.

 

RE: Glad it worked... and a warning, posted on May 28, 2020 at 10:50:38
rivervalley817
 'skinny little wire brushes if you have them.'

if you're a player [or know one] wound guitar strings work a treat for dressing holes & slots ... the poor man's rat tail file

be well,


 

RE: Glad it worked... and a warning, posted on May 28, 2020 at 11:48:43
Jim McShane
Dealer

Posts: 5910
Location: Chicago
Joined: January 13, 2003
 The Cit II does not use PC boards so that's not an issue here.

 

"REALLY hard to do", posted on May 29, 2020 at 07:39:30
1973shovel
Audiophile

Posts: 10117
Location: Greenville SC
Joined: February 25, 2007
 If the PC board sockets are to be replaced with new, just snip the legs using a wire cutter. The remaining bit of each leg can then be heated and removed from the board individually.

A little trick I learned here on the Asylum, while trying to remove eight-leg op-amps.



 

RE: "REALLY hard to do", posted on May 29, 2020 at 07:51:48
tubular.well
Dealer

Posts: 223
Joined: March 4, 2013
 +1

 

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