Fusor Forums

Hi folks, These are some serious capacitors, but I am unlikely to use them. It will be about 120 years before I complete my current project list, so.... hopefully these will go to a good home: https://www.ebay.com/itm/383016321914 0.018uF 60kV polyester/oil capacitors. These things hold a few joules...

Hi Richard! When you read the salutation, did you hear it in Professor Farnsworth's voice? :) Thanks for the info on the videos. I haven't posted to the board in a while but I stop by to poke around and see what's new and who is doing what every few months. My attentions over the past two years have...

Long time since I posted here, lots of projects done, many more in progress. Making room for new projects, clearing out my old video library and came across FOUR TCBOR (Tesla Coil Builders of Richmond) Video tapes! Not sure if anyone wants them, but they're up on eBay in the hopes that someone can l...

LOL! I love your description of electron flow in your 1T... and your HUP references! I needed a laugh today. 1T is an amazingly large value, I believe I've seen insulators with less resistance.

Dave

Hi Richard - thanks for the info - I would have thought more than 10 Watts, the thing is almost as big as a beer bottle! As for what look like scratches - that is actually reflection - see the photos below with different lighting. This unit was in its original foam packaging and labels - it's pristi...

Last MIT Flea Market of 2016... Picked up a few goodies, including this fat 14M resistor. Any idea what the wattage on this puppy might be? It measures 7.5" overall length by 2" diameter, and is hollow. Looks really nice, measures 13.40M. Should find a home in some future HV project! Got it for $1.0...

Very good info Richard, thanks. The pictured resistor setup is indeed just a Q&D, running near the top end of the unit's maximum rated output. Honestly, these things are from Hong Kong and only $8.00 each, and I just wanted to run them for an hour or so because I fully expected them to crap out! But...

Hi Rich, I bet you're right! This was just a test setup for a burn-in. Are you suggesting that the measurements may be inaccurate? I've not usually had issues with mA level measurements with standard resistors below 2kV. I am very aware of the resistor issues/requirements when measuring my fusor gri...

Neutron Detector build underway. Using Richard Hull's Last Two PMTs! Burn-in testing of a few different HV Supplies for the PMTs. These guys run up to around 1800Vdc, not bad for $8 eBay Hong Kong specials. Pictures show voltage running around 1500Vdc through a 10M/1k voltage divider. I'll be using ...

Finally had the time to get the High Voltage Guard (formerly a KitchenAid Polycarbonate Store Display) installed, and then the High Voltage Divider for the Monitor... and of course, the Monitor Panel. I have been unhappy with the video monitor due to the poor quality of the cheap camera I used which...