Re. recapping 2465B
Youre on the cusp of learning the *hard way* why advice to
NOT replace caps is extremely bad.
Out of the multiples of semi load after semi load of equipment
I worked on "back in the day" (very high volume consumer electronics
from tube to fine pitch SMT)Ive seen too many electrolytics and some
tantalums go 'knees up'
and leak, explode, literally take off like rockets and stick in a ceiling 8
feet up,
blow confetti across the room, destroy power supplies and even
turn power transformers into smoking piles of tar and iron.
And do circuit board damage...
Only a* FOOL* thinks they can get away with NOT recapping
and I do mean ALL of the caps. Its a crap shoot, a losing gamble
to trust any old cap.
Its a false Meme from the antique radio world that says
"I can get away with not replacing caps/ just testing them"
That Meme is from the world of working on an old AM broadcast or SW
receiver and attempting to keep it as near "stock " as possible.
The adventurous remove old caps and hide new ones inside.
The foolish ignore old caps...
Its EXTREMELY bad practice in anything worth keeping, such as high
end equipment like Tek.
Its a second Fools Errand and false meme to play the "bring it up on a
variac"
or "Ill reform a 50 year old cap." Delusional. The "bring it up on a
variac" meme was
for finding shorts that were hiding in equipment with linear power supplies
where just turning the thing on instantly blew the fuse. It is NOT a valid
or useful procedure for dealing with old caps, no matter how hard the
True Believers want it to be.
Ignore those advising anything but a total recap. *They wont be paying for
the damage their foolish advice causes.*
This is (presumably) high end, near scientific Tek (and other) test
equipent. If its not
worth $100 in caps and a days work, why bother? Just throw it in the
dumpster.
Signed, replaced more leaky, shorted and open caps than " theyll" see in 5
lifetimes...,
