----- Original Message -----
From: "Steve Wedge" <w1es1...@triad.rr.com>
To: "Rich Jones" <michjone...@yahoo.com>; "Drake List"
<drakelist@zerobeat.net>
Sent: Friday, October 11, 2013 4:31 PM
Subject: Re: [Drakelist] Drakelist Digest, Vol 64, Issue 5
He replaced the tube.
I just fixed a T-4XC that exhibited a cold or broken solder
joint this month, in 2013. Joint was soldered in 1977.
Not quite the old "House, MD" maxim of it never being Lupus.
If swapping the tube brings no resolution, check all the
connections. That means both tube socket and all solder
joints.
Still good maxims to live by.
Steve Wedge, W1ES/4
I have found bad solder joints from the factory many
times in all sorts of equipment. I've found joints where the
wire was wrapped but never soldered in both Drake and
General Radio equipment. Joints like that can run along for
decades before they degrade enough to cause trouble. Its
always worth poking at the wiring with an insulated stick
when nothing else works. I usually use a wooden chop-stick.
--
Richard Knoppow
Los Angeles
WB6KBL
dickb...@ix.netcom.com
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