Search found 76 matches

by Joshua Guertler
Sun Jan 05, 2020 8:22 pm
Forum: High Voltage - Fusor Input Power (& FAQs)
Topic: Neon sign transformer power: a new look
Replies: 25
Views: 12712

Re: Neon sign transformer power: a new look

Greetings, Thank you very much for the model, it will certainly be very useful in the near future. Out of curiosity, what is R1 and RL for and if they represent a part built into the transformer. Also, if one were to build the circuit, would it be better to go with a full wave rectifier design? Than...
by Joshua Guertler
Sun Jan 05, 2020 12:55 am
Forum: Fusor Construction & Operation (& FAQs)
Topic: Simplified Deuterium System Drawing/Schematic
Replies: 6
Views: 836

Re: Simplified Deuterium System Drawing/Schematic

Greetings Mr. Hull, I agree with the general premise of your point about its capabilities for low-budget fusors, however I would like to echo the sentiments of Mr. Rowley. These sorts of PEM cells have historically run quite well (in different set ups, granted) with fusors in the several hundred tho...
by Joshua Guertler
Sat Jan 04, 2020 8:22 pm
Forum: Fusor Construction & Operation (& FAQs)
Topic: Simplified Deuterium System Drawing/Schematic
Replies: 6
Views: 836

Simplified Deuterium System Drawing/Schematic

Greetings all, Unsurprisingly, the deuterium system can be the costliest - and most restrictive - component of a fusor for a high school or college student looking to make a garage fusor, coming in at around $500 for gas, regulators, and containers. Moreover, international builders are confronted by...
by Joshua Guertler
Thu Jan 02, 2020 10:22 pm
Forum: Items wanted
Topic: 10 kV 100 W Power Supply
Replies: 6
Views: 732

Re: 10 kV 100 W Power Supply

Greetings, The 12 kV 35 mA (give or take 5 mA) will provide steady state power to a capacitor bank with a total capacitance of 0.0555... uF, leading to a time constant (for 99%) of roughly 0.1 seconds. An inductor is also used to help govern the pulse width of the pulsed power. A deuterium thyratron...
by Joshua Guertler
Thu Jan 02, 2020 12:26 pm
Forum: Items wanted
Topic: 10 kV 100 W Power Supply
Replies: 6
Views: 732

Re: 10 kV 100 W Power Supply

Out of curiosity, do you think that a 12 kV 35 mA neon sign transformer (like the one here: https://ebay.to/2QBTU9m) would be able to provide at least 10 kV and 30 mA?
by Joshua Guertler
Wed Jan 01, 2020 9:55 pm
Forum: Items For Sale
Topic: 85 kV X-Ray Transformer
Replies: 7
Views: 1362

Re: 85 kV X-Ray Transformer

Greetings,

The item has just been relisted for another go around and will continue being relisted until someone purchases it. Thank you for your interest.

Sincerely,
Joshua Guertler
by Joshua Guertler
Wed Jan 01, 2020 5:14 pm
Forum: Items wanted
Topic: 10 kV 100 W Power Supply
Replies: 6
Views: 732

Re: 10 kV 100 W Power Supply

Greetings, I haven't quite looked into NSTs quite yet, as I've been more hopeful that something complete would be able to come around. Nonetheless, I have keep it around as a back up option in my mind. As for charging, I've been primarily considering DC charging for the caps. However, I'd have to ge...
by Joshua Guertler
Wed Jan 01, 2020 6:26 am
Forum: Items wanted
Topic: 10 kV 100 W Power Supply
Replies: 6
Views: 732

10 kV 100 W Power Supply

Greetings, I'm currently in need of a 10 kV 100 W power supply capable of charging a 0.1 uF capacitor in 100 ms at a rep rate of 10 Hz. This is for a minor pulsed power unit I was planning on installing. My overall unit will need to discharge around 100 W about 10 times per second, hence the need to...
by Joshua Guertler
Tue Dec 31, 2019 2:59 am
Forum: Items For Sale
Topic: "Interesting" 65 kV X-ray transformer
Replies: 6
Views: 905

Re: "Interesting" 65 kV X-ray transformer

Best of luck, Pablo. Keep me posted if you run into any trouble while setting it up, I'd been happy to email/PM you any advice.

Sincerely,
Joshua Guertler
by Joshua Guertler
Mon Dec 30, 2019 4:03 pm
Forum: Items For Sale
Topic: Beryllium and Lithium Hydride For Sale
Replies: 2
Views: 599

Re: Beryllium and Lithium Hydride For Sale

UPDATE! Beryllium has just been sold!

However, the 25 grams of Lithium Hydride is still on the table. This stuff could make for a very interesting moderator or potential target material. It's quite a rarity and, at the moment, doesn't seem to be quite common.