My appreciation to those who responded to my question. I tried the furnace
cement and it worked fine as predicted.
73 de Mike K6QD
----- Original Message -----
From: K6QD
To: amps@contesting.com
Sent: Thursday, April 10, 2008 7:42 AM
Subject: Replacement of plate caps on glass tubes
I have some old glass tubes where the plate cap bond to the glass envelope
has become loose; i.e. the cap is being held on by the soldered wire going
through the glass envelope to the internal plate. The solder joint from the
wire connection to the plate cap is intact and the tubes are good, but the bond
to the glass has failed over time. Can the caps be unsoldered, re-bonded and
re-soldered?
Thanks for any help.
de Mike, K6QD
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