yep thats them.
is there something more reliable to replace them with or should i stick to tants?
phil
yeah, can't complain :-)
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--- In TekScopes@..., larrys@... wrote:
If we're looking right above the power switch, I have 3 ea 15 uF @ 20 V
tants. Looks like they are decoupling for +/- 8 & +5, so 20 V
wasn't too close. I dunno. They die.
Even with a couple bad tants, you got one helluva deal. That scope is
my favorite 'go to' portable.
-ls-
larrys@... wrote:
Which cap are we talking about? I'll slide the skin off of mine and
see what it has in it. The pic in the manual almost looks like a
wet tant. Those weren't real commonly used.
-ls-
"pdxareaid" <public_email@...> wrote:
yeah, tantalum innards leaking out occurred to me but it sure looked like solder.
what you say makes more sense. i never looked up tantalum construction but i understand they are electrolytic. i will replace for sure.
i need to look more but the board pic in the service manual does not show tantalum. they appear to be axials of some sort. is this common?
i would like to not replace with tantalums. is there a suggested replacement?
thanks for info on .2 pot. the 465M is 0.0 i'll have to read about the 465B version.
thanks, phil
--- In TekScopes@..., larrys@ wrote:
Phil -- just a couple things -- you should probably replace that tant
anyway. What looks like solder probably came from inside it.
And the good news: .2 is the normal minimum on the 10-turn DTM pot
for this guy and a plain 465. No tweakage necessary.
-ls-
"pdxareaid" <public_email@> wrote:
i'm not sure of the best way to post this followup for all previous
responders see. so, i'm replying to my original post...
i spent some quality time with the new toy today. i guess it just
needed some attention...
i turned it on and found i was getting one spot on the screen rather
than a massive glow (i kept it de-focused as it was full intensity.)
i looked around at the tantalums that had one smoking yesterday and
noticed a solder bead on one of the three.
i poked it and it fell off...and a trace slowly snapped back. some
adjustments and things were sweeping! how the heck does a solder bead
on the outside of a tantalum cause this? was there a cold solder i
tweaked at the same time?
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