[Amps] Ebay 4-400A chuckle
Alek Petkovic
vk6apk at eon.net.au
Fri Feb 11 18:31:04 EST 2005
Very easy to fix Todd. No need to be scared. I've done it successfully with
no less than 4 x 4-1000A tubes which had suffered during transit. All are
now in good working order with 2 of them in use and 2 as spares.
Don't wrap the tube up. You need to be able to see what you are doing as
you are doing it.
Hold the tube in one hand and give it some light thumps on the envelope on
the opposite side to the bent plate with the heel of the other hand. You'll
find that they are quite robust and will take a substantial beating but
don't try and move it too much with each thump. Slowly does it. Remember,
it is not your wife.
You'll soon see that by judicious beating and rotating of the tube, you'll
soon have it fully restored.
Have fun,
Alek. VK6APK
At 07:08 AM 12/02/2005, ToddRoberts2001 at aol.com wrote:
>Questions, questions.........
>The tube must have been bumped with just the right amount of G-forces to bend
>the plate assembly below the stem of the plate going to the plate cap. I have
>a similar dilemma with a brand-new 4-1000 tube that was shipped to me. When
>it arrived the plate was tilted slightly to one side and I have a before
>picture showing it was perfect before it was shipped. Someone here told me
>a long
>while ago that if you carefully wrap the tube in a blanket or towel and
>gingerly
>rap it against a semi-hard surface like the edge of a couch you can correct
>the tilt of the plate without damaging the tube. I have been afraid to try it
>yet. I have a dud 4-1000 I can practice on but I will be a nervous wreck
>trying
>that on a brand-new 4-1000 tube! 73 Todd WD4NGG
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