[Amps] 3-500Z Pin Desoldering

[kb9cry at attbi.com]

Some folks have suggested that a cause of the loss of pin solder is from not 
oiling the cooling fan.  I agree with that but if you determine that the fan is 
rotating properly, I have another cause to investigate.  I used to have the 
same problem (SB-220 amp) and found the following problem:  The tube socket's 
spring clips had become weak and were not holding tight onto the tube pins.  
Take out the tube and look at the bottom of the tube socket.  Are the ends of 
the socket clips close together?  Do you see discoloration in the spring 
clips.  If the answer is yes, then replace the clips with new ones (from 
another new socket) and you'll be in business.  I did this to my problem a year 
ago and no more desoldering problems.  Gd luck, Phil  KB9CRY
> 	Thanks for the answers regarding the subject.We'll try to acquire
> Ag/Sn  solder if we can, if not possible will try with 60/40 solder.
> Thanks for the information.
> 
> Best regards
> Guillermo.
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