[Amps] SB220 cooling was: Re: Coupling a blower to an air system socket

[Bill Turner]

ORIGINAL MESSAGE: 
On Mon, 18 Mar 2013 06:29:25 -0400, you wrote:

>For what it may be worth, I seem to have cured a recurrent problem with 
>overheated filament pins on my SB-220 (which came unsoldered frequently) 

REPLY: 
3-500's are notorious for this problem. Someone posted years ago that
Amperex brand 3-500's have welded filament pins instead of soldered, which
would seem like a good way to go. 

I have not verified this personally, just passing it on FWIW.

73, Bill W6WRT