I've had good experience with rejuvenating B-8091's as well. Also one source I
had recently for them also rejuvenated a bunch of them from an old find. I
agree... Nice that these big beautiful tubes can recover because they're few
and far between. Love Noroughs tubes!
Bill
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You received
Hello all . Schematic needed I have a complete clock and two seperate
boards of a clock that was sold by B & F Enterprises cicra early 1970's as
a kit . I need a schematic to get them up to speed. Maybe someone in the
group built one of these . Any help help is greatly appreciated.
Thanks in
I have a few 6091's (smaller than the 8091), and nothing I've tried has
brought them back. One appears to have a broken internal spot-weld, so it's
a matter of how much high-current zapping I'm willing to blast-away the
short.
The other 2 have darkened internally, which I think is
> Questions - is this a reasonable plan? I found a datasheet for the SP-35x
> parts and it recommends 350uA per segment. Is it reasonable to double this
> for a 50% duty cycle? Also, I'm a little puzzled about what I'm supposed to
> do with the "Keep Alive" cathodes on these things. How
Hey Gaston! Thanks for your input I really appreciate it, This week I'll
try and get the parts you mention, been investigating and learning a lot
about powering and Threeneuron's Pile o'Poo is definitely a great starting
point. How do you feel about the MPS8598? I think I can easily get some of
Hey Gaston! Thanks for your input I really appreciate it, This week I'll
try and get the parts you mention, been investigating and learning a lot
about powering and Threeneuron's Pile o'Poo is definitely a great starting
point. How do you feel about the MPS8598? I think I can easily get some of
If you go the route of attempting to smacking it… First try smacking into the
palm of your hand.
If you’re in the USA and want to try, I have no problem sending you a socket
for free.
Michail
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Had an 8091 in my stock with a couple marginal cathodes. There was a small
amount of poisoning on the '5', '8', and '2'. Zapped them with a sustained
helping of about 12ma each which cleaned them right up. Strange things is,
the process seemed to rejuvenate all the others and make them all
Until now, I have never tried to fix the tube. I was the one who cut the
pin off many years ago but also realize that when I did cut it, I could
have purchased another tube for around USD$8 at the time (~25 years ago).
As I already had 6 Ultronics tubes in my clock, 6 NOS Burroughs spares
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