Say hello to my little (HV) friends

Current images of fusor efforts, components, etc. Try to continuously update from your name, a current photo using edit function. Title post with your name once only. Change image and text as needed. See first posting for details.
John Myers
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Say hello to my little (HV) friends

Post by John Myers » Wed Oct 25, 2017 11:17 pm

I bought some high voltage equipment from an auction.
IMG_20171021_163155924.jpg
150KV DC caps
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130KV 5.5ma DC supply
IMG_20171021_174540746_BURST000_COVER_TOP.jpg
130KV 5.5ma DC supply
IMG_20171021_174629354.jpg
130KV 5.5ma DC supply
IMG_20171021_160722100.jpg
Spark gap firing transformer
IMG_20171021_160853109.jpg
Spark gap firing transformer
IMG_20171021_172256817.jpg
HV Trigger Amp
IMG_20171021_172723132.jpg
HV Trigger Amp

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Dennis P Brown
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Re: Say hello to my little (HV) friends

Post by Dennis P Brown » Thu Oct 26, 2017 11:43 am

Wow, that is a lot of heavy metal! Well, looks like you have both a complex but extremely interesting project getting that stuff working!

I'd really like to hear, as you progress, what you are doing to get the various components working; or if you will side step some of that and create a new pulse system for the x-former (maybe, if you know, some details on how that x-former works.)

That 130 kV x-former really looks like it can deliver the current along with those volts - that is one big monster.

So, do keep us posted on your work once things start to progress - that project really looks exciting and fascinating!

Also, thanks for posting the images.

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Rich Feldman
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Re: Say hello to my little (HV) friends

Post by Rich Feldman » Thu Oct 26, 2017 7:07 pm

Ooh! Ahh!
Mike echo oscar whisky! I repeat! Mike echo oscar whisky, how do you copy? Over.

Rex Allers
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Re: Say hello to my little (HV) friends

Post by Rex Allers » Thu Oct 26, 2017 8:43 pm

Those big caps are labeled 500 uufd. I think most manufacturers had switched from uufd to pf by some time in the 60's, so that's some pretty vintage stuff. Hope the internal magic hasn't evaporated.
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John Myers
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Re: Say hello to my little (HV) friends

Post by John Myers » Thu Oct 26, 2017 11:21 pm

I don't have any concrete plans for the spark gap xformer, I thought I might regret not getting it later and should rescue it from the metal scrapers who seem to be bidding on items like that. I haven't found any info on it yet, I'm not exactly sure how it works so I'll probable open it up and take a look.

It looks like it was a bunch of old equipment from the Los Alamos national lab. I also got 4 pwr supplies for Oscopes. Here's a youtube video of someone showing the insides.

I didn't even think about how old the caps were until few day's after I bid on them. I spent about $2 each so I think it's still worth the gamble.

I was told that the items in the pictures below were part of a nitrous system. So I got them too, just out of curiosity. One seems to be a pump or compressor and the other ended up having a large cap inside.

IMG_20171021_162317371.jpg
IMG_20171021_161601637.jpg
IMG_20171021_174056192.jpg
IMG_20171021_165600006.jpg
IMG_20171021_165641387.jpg

Jerry Biehler
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Re: Say hello to my little (HV) friends

Post by Jerry Biehler » Fri Oct 27, 2017 12:01 pm

That's a hydrogen thyratron on the end of that one thing. Marked Res (reservoir) and HTR (Heater filament). Some sell for decent money on ebay.

John Myers
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Re: Say hello to my little (HV) friends

Post by John Myers » Fri Oct 27, 2017 5:57 pm

That's great!
I assumed that the tubes meant it was some sort of pump but it must be for cooling the thyratron.

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Dennis P Brown
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Re: Say hello to my little (HV) friends

Post by Dennis P Brown » Fri Oct 27, 2017 7:00 pm

That 130 kV transformer looks fairly complete/turn key (except for the drum and oil.) I believe those horizontal stacks are the HV diodes. Does it indicate what voltage and frequency it needs in the primary in order for it to operate? Also, have you ohm tested the primary and secondaries to see if they are ok?

John Myers
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Re: Say hello to my little (HV) friends

Post by John Myers » Fri Oct 27, 2017 8:25 pm

I had to leave on a business trip right after I got them so I didn't have time to checkout/test anything. It will be another whole week before I get back :(

I got two of them but only one had a label, which is faded. I'll check again when I get back to see if there's any other labels somewhere with those specs.
IMG_20171018_110347276.jpg

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Richard Hull
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Re: Say hello to my little (HV) friends

Post by Richard Hull » Sat Oct 28, 2017 7:41 am

You might be interested to know that the original Farnsworth fusor team used a Universal Voltronics 150kv 50ma power supply in their work back in the 50's and 60's. According to Jean Meeks the supply was in a fiberglass drum larger than a 55 gal oil drum and with oil weighed in at over 1500lbs. Jean told me they had to move it twice and had to remove two doors to the lab to get a fork lift in the lab to move it each time.

Richard Hull
Progress may have been a good thing once, but it just went on too long. - Yogi Berra
Fusion is the energy of the future....and it always will be
Retired now...Doing only what I want and not what I should...every day is a saturday.

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