David Knepper wrote:
I wished that I had used spell check on my post.
"attempting" and "during"
In my humble opinion, the reason for the filament to shatter, break, snap,
open, split; crack, divides, etc. or whatever occurs is physical jarring.
I'd agree with this. And as Geoff pointed out, sagging over time if
stored incorrectly could be a problem too. I have an old 250TL still in
its metal shipping frame, hanging upside down but vertically, suspended
by springs. Amazing what they used for packaging back then!
However, I had a gentleman in New Zealand ship me two 75TH tubes for my
30K-1 and they arrived in great shape. Think of how many "frequent-flyer
miles" these tubes had since leaving the factory in California.
Indeed. I'd be curious Dave, to hear what kind of plate cap arrangement
yours use. I broke one on the mod 5 by trying to take it out of the base
and slip it out where I could get to the cap. Someone came up with a
split-cap design held in place by two of those ring clips requiring
special pliers to remove. Just the slight amount of torque from lifting
the tube out of the socket *slightly* was enough to cause the top seal
the break. Found a pair last spring at a hamfest, after looking for a
couple of years. Also, I thought the 30K-1 used 75TLs, or was that just
'early design' and production ended up going with the TH?
~ Todd KA1KAQ
