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EL34 Plastic Base Position Pin Broken
EL34 Plastic Base Position Pin Broken
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Old 9th August 2018, 11:06 PM   #1
bedrock602 is offline bedrock602
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Default EL34 Plastic Base Position Pin Broken

I was testing some tubes today and one of the EL34's black position pin in the center of the tube base broke off exposing the glass twist.

It still tested good but am wondering if I can glue the pin back on and safely use the tube?
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Old 9th August 2018, 11:09 PM   #2
gofar99 is offline gofar99  United States
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Hi, Yes, I use high temperature epoxy for that. JB weld works good too.
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Old 9th August 2018, 11:09 PM   #3
bedrock602 is offline bedrock602
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That was quick. Thank you!
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Old 10th August 2018, 01:15 AM   #4
pblix is offline pblix  United States
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Quote:
Originally Posted by gofar99 View Post
JB weld works good too.
+1
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Old 10th August 2018, 10:59 AM   #6
Kay Pirinha is offline Kay Pirinha  Germany
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It is bakelite, so even superglue will do. BTDT!


Best regards!
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Old 10th August 2018, 05:38 PM   #7
sony6060 is offline sony6060  United States
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I have used super glue. Not a lot of heat at the pin and sets up fast.
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Old 10th August 2018, 06:20 PM   #8
bedrock602 is offline bedrock602
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Thanks guys for all of the input. Much appreciated.
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Old 10th August 2018, 08:19 PM   #9
pcan is offline pcan  Italy
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EL34 Plastic Base Position Pin Broken
I don't use superglue anymore because it easily breaks while inserting the tube in the socket. A little bit of elasticity is needed. It is best to avoid excessive glue, the glass evacuation stem should remain detached from the socket.
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