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  1. Stickman393

    Vacuum-dehydrating hygroscopic components...

    Absolutely. But only up to like, 100uA. Its remarkably close to measured values using the RG keen method below 100uA. Anything more and it all goes out the window. These have a min hfe of 60, and they all measure under 20 or over 250, depending when I measure them. Its not reliable if you're...
  2. Stickman393

    Vacuum-dehydrating hygroscopic components...

    Similar thought. Discharge a cap between the case & EBC bundled together. right now I'm maxed out at like 36 volts unless I do some shady bullshit with a bridge rectifier I have laying around and mains. Nah. Don't have the work holding setup for that. No thank you. Not gonna die today...
  3. Stickman393

    Vacuum-dehydrating hygroscopic components...

    Stick man. Bang rocks. Ahem... So, I've spent a good amount of time dehydrating these things. Like, 12 hours. I'm not noticing any improvement in leakage...not even incrementally speaking. BUT!! That got me thinking. Tin whiskers. Fuckin...high humidity is going to affect that. I...
  4. Stickman393

    Vacuum-dehydrating hygroscopic components...

    Mmmm. Delicious.
  5. Stickman393

    Vacuum-dehydrating hygroscopic components...

    God DAMMIT darwin. With your "theory" of evolution. Tell me: it you're so smart, how come it isn't a law? Everybody knows that life is actually made of sticks. WHAT? PROVE ME WRONG! *Ahem*. Uh...where was I? Ah. Yeah. So, I appreciate the input. I'm not fully studied on the actual...
  6. Stickman393

    Vacuum-dehydrating hygroscopic components...

    Probably could, though then you've got the opposite problem should water make its way back inside. Whatever makes it harder for water to infiltrate will also make it more difficult to remove. So: first shot? Maybe 4 hours on the pump, no real drop in leakage current. As far as I can tell...
  7. Stickman393

    Vacuum-dehydrating hygroscopic components...

    Silica beads work too...but *much* more slowly. Vacuum dehydration has a very specific advantage: boiling points are directly affected by pressure. Silica can only absorb water vapor that makes its way into the air at atmospheric pressure. I've probably got my chamber down around 1000 microns...
  8. Stickman393

    Vacuum-dehydrating hygroscopic components...

    So. I found a killer deal on some NPN germaniums. Got a good little batch, and wouldn't ya know it? They're all pretty well P-H-U-C-K-E-D. Leakage in the 2ma range. Meh. But...hey. these are vintage. From about 1969 or so. Probably not perfectly stored over the years. So I'm...
  9. Stickman393

    Fume extractor

    Carbon filter is a good idea. HEPAs are dope. Nuthins gonna beat actually extracting fumes though. That is: transporting them outside, away from you.
  10. Stickman393

    A multimeter that can read frequencies over 50hz

    Fluke 87V? If you can get someone else to buy it for ya.
  11. Stickman393

    Tone Stacks - Part 2 - James & Baxandall

    A'ite. I can't stand it. Am I the only one here randomly neighing "James Baxandall"?
  12. Stickman393

    Jlcpcb and tariffs

    Sounds like they're primarily interested in the big fish, then. Or rather, folks with consistent imports. Makes sense why chase bliss had to alter the way they did things a bit. Doing a bit of reading...the official page makes it sound *really* in depth. BOM, drawings, compliance documents...
  13. Stickman393

    Performance of Various Transformers

    THERE CAN BE ONLY ONE!!! I mean, cool man. Neato. Schweet.
  14. Stickman393

    Jlcpcb and tariffs

    I've gotten the impression that shipping new electronics to any of the EU member states requires strict RoHS compliance. Dunno though. Dunno exactly what that entails. Like, is it similar to UL listing in that it requires documentation of all component parts to ensure compliance...
  15. Stickman393

    Is it ok to store guitar pickups and vacuum tubes in the same drawer?

    Whoop whoop to my homies. Magnets - How do they work?
  16. Stickman393

    Adapting old BBD circuits to MN3007

    The other route, as others have pointed out: just kneecap a MN3007. Its a lot easier to cut the clock range for a single chip in half.
  17. Stickman393

    Do We Need/Want a BBD Tester?

    That change was made to limit the amount of components needed...made for a total of 8 fewer resistors and a smaller dip switch. MNXX07S and xx05s both have dual outputs that I typically see joined together by a pair of resistors. I *think* it's a means to make the output capable of driving two...
  18. Stickman393

    Jlcpcb and tariffs

    Starting to feel like ordering PCBs is like a poker game where I'm facing off against a giant, petulant, orange toddler and a weirdo in robes that seems very interested in listening to novel arguments over why black is actually white. All I know is I'm gonna lose money.
  19. Stickman393

    Do We Need/Want a BBD Tester?

    Crazy Cat is a G. The good thing about working with stickman is that he's a fuckin n00b that has a good 10 year long career behind him of being wrong as an HVAC mechanic, so every time something goes wrong he assumes he is the one at fault. So, no worries homie. Question....do you have the...
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