EEVblog Electronics Community Forum
General => General Technical Chat => Topic started by: Terabyte2007 on August 17, 2014, 03:49:11 pm
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Another good trip to the Electronic Surplus Warehouse. Project boxes, many rolls of Kapton tape, 3M Teflon PTFE Glass tape and yet another PSU and a tested and working 2kVDC 500uF oil capacitor!
The PSU is a Kepco ATE 150-1.5M 0-150VDC 1.5A power supply with CV/CC crossover and 10-turn adjustments pots and analog meters. It also has the remote control card installed! :-+ Tested the PSU over the entire range and it's spot on! Good specs too...
I could not pass up the 2kVDC 500uF capacitor for 20 dollars! Time to get out the chicken stick! ;D
Good trip, I really like this place!
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I was at the scrapyard Friday, and there was a nice Hitachi Mosfet amplifier, in somewhat used condition. Was looking to get it, but as it is about 20kg, and they charge per kilo i might see if it is still there next visit and negotiate a lower price. Then I will probably return most of it as scrap metal. Probably only keep the vertical mosfets.
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Nice caps, but I would be careful of possible PCB content, especially if you are doing "abusive" stuff to them that might cause a rupture/leakage. Shorting stick and rubber lineman's gloves definitely in order around that thing. The label said they had more of these? Quartershrinker or Gauss gun maybe?
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I was at the scrapyard Friday, and there was a nice Hitachi Mosfet amplifier, in somewhat used condition. Was looking to get it, but as it is about 20kg, and they charge per kilo i might see if it is still there next visit and negotiate a lower price. Then I will probably return most of it as scrap metal. Probably only keep the vertical mosfets.
The Mosfets would be worth it alone!
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Nice caps, but I would be careful of possible PCB content, especially if you are doing "abusive" stuff to them that might cause a rupture/leakage. Shorting stick and rubber lineman's gloves definitely in order around that thing. The label said they had more of these? Quartershrinker or Gauss gun maybe?
PCB was a concern, but the MFG date suggests a 50/50 that it might contain PCB's, regardless, PCB's are harmless unless it leaks or explodes. It does not have any leaks that I can see nor do I plan on pushing it to its rupture point. A quartershrinker would be cool! 8)
BTW, the last one. A local university bought like 5 or 6 of them. This was the last one.
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Nice caps, but I would be careful of possible PCB content, especially if you are doing "abusive" stuff to them that might cause a rupture/leakage. Shorting stick and rubber lineman's gloves definitely in order around that thing. The label said they had more of these? Quartershrinker or Gauss gun maybe?
PCB was a concern, but the MFG date suggests a 50/50 that it might contain PCB's, regardless, PCB's are harmless unless it leaks or explodes. It does not have any leaks that I can see nor do I plan on pushing it to its rupture point. A quartershrinker would be cool! 8)
Judging by the lightweight terminals, that cap isn't designed for impulse discharge use. If you try to use it as a quartershrinker, the internal leads may either vaporize or tear loose.
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PCBs went away in the 60s or 70s... if it's around that date, and doesn't say "No PCBs", it's probably got PCBs.
Tim
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Hitachi Mosfet ...Probably only keep the vertical mosfets.
Vertical mosfets, made by anyone, but Hitachi in particular, aren't worth anything.
Lateral mosfets, made by anyone, but Hitachi in particular, are a different story.