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Could it be that this "capacitor" is a combination type, with a parallel rectifier diode that is dead? That would explain a lot, I'm about to cut this thing open...
What do you think?
Edit: The capacitor is polarised, quite unusual for a 0.01uF type. It also has this marking on the anode side:
View attachment 118294
No max. voltage markings...
No problem, what's wrong is wrongDon't be mad at me for telling you this, but you're drawing electrolytic capacitors upside down.
Thanks! That makes perfect sense. I will kick em out...it has no continuity, no matter from which side RIPThat's the selenium rectifier.
Don't need max voltage marking, just follow the smoke trails...
It doesn't matter, but it looks cooler with German umlauts. I was given this name years ago by a game engine... where does your name come from? I'm trying to imagine how to pronounce it! LOLIs it soderstrom or Söderström?
I'm going to throw out almost all the capacitors, they're all leaking. For instance, oil and a black sludge comes out of the square (MP??) capacitor...together with the smell, that's certainly not so healthy.I see little value in old parts, except tubes,and paper/oil/glass caps.
Terrible tolerances, bad specs, short life. The HP200AB manual from '53 brags about electrolytic life of "five to ten years"
I had already guessed that the Soderstroms, probably with a ø, come from Scandinavia.Check the Swedish phone book, you'll find a few. ,
My pseudonym is just a random keyboard attack
There is a greater than zero chance given the era that that’s got one of the various PCB oil formations inside it. Use gloves, avoid touching any leaked fluid and wash hands extremely well after! If any fluid has spilled elsewhere, clean well with isopropyl.I'm going to throw out almost all the capacitors, they're all leaking. For instance, oil and a black sludge comes out of the square (MP??) capacitor...together with the smell, that's certainly not so healthy.
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The stuff is really old now, built in 1957, it's time to retire.
Without wanting to panic, but I think you're right! I'm washing my hands a lot at the moment, more so than during the coronavirus pandemic. It's no exaggeration to point this out. Make sure you have good ventilation! Washing your hands is mandatory!There is a greater than zero chance given the era that that’s got one of the various PCB oil formations inside it. Use gloves, avoid touching any leaked fluid and wash hands extremely well after! If any fluid has spilled elsewhere, clean well with isopropyl.
If possible, don’t just throw in trash, but take to a depot that handles hazardous wastes.
I've heard that too and that's why I always treat old capacitors that emit liquids and snot with a lot of respect.Chances are that old oil caps had Polychlorinated Biphenyls (PCB) which was banned in 1977.
100%. I replaced this a few weeks ago and its really insane to see the size differenceIt is also interesting to note the significant differences in size between old and new capacitors.
Here the toxic 2uf MP capacitor compared to the modern 2.7uf MKP model.
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Ho ho, that's really an impressive difference in size!100%. I replaced this a few weeks ago and its really insane to see the size difference
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