Search found 7 matches

by David Lloyd-George
Tue Apr 23, 2019 5:21 pm
Forum: Images du Jour
Topic: Plasma!
Replies: 1
Views: 2379

Plasma!

After some troubleshooting, we were able to get a plasma in our vacuum chamber. We achieved this after an interesting change to our set up. Our current measurement system uses a 10Ω 25W resistor bolted to our frame with one end coming from the HV power supply ground, and the other going to our star ...
by David Lloyd-George
Mon Mar 25, 2019 3:58 pm
Forum: Fusor Construction & Operation (& FAQs)
Topic: Our progress
Replies: 5
Views: 4237

Re: Our progress

We have been able to achieve some more results in our journey to fusion. After buying a few more flanges and components, we were able to test our main chamber. We pumped down for ~30min and managed to get a vacuum of around 12mTorr. We were very happy with this result considering that it was very cl...
by David Lloyd-George
Fri Mar 15, 2019 7:14 pm
Forum: Fusor Construction & Operation (& FAQs)
Topic: Our progress
Replies: 5
Views: 4237

Re: Our progress

We have made some progress in our efforts. After buying a Teledyne Hastings DV-6M gauge and controller, we tested out our pump. We connected the gauge directly to the inlet of the pump and after 20min of pumping, we had hit 15mTorr. Since we have two TC gauges, we corroborated our results with the s...
by David Lloyd-George
Sun Dec 30, 2018 10:29 pm
Forum: Fusor Construction & Operation (& FAQs)
Topic: Our progress
Replies: 5
Views: 4237

Our progress

we have made some progress with our fusor efforts. We bought a vacuum pump from eBay. the model is a a Trivac D8A. We inspected it using the very helpful guide on this forum and put new vacuum oil in. The oil used is VacOil 19 grade and we filled and drained the pump with this oil a few times to cle...
by David Lloyd-George
Wed Jul 04, 2018 6:52 am
Forum: High Voltage - Fusor Input Power (& FAQs)
Topic: xray transformer
Replies: 7
Views: 4397

Re: xray transformer

another update,

I tested the transformer by applying a dc voltage of around 1.3 volts and got 1.1A of current indicating that the previous resistance measurement is correct.
by David Lloyd-George
Wed Jul 04, 2018 6:47 am
Forum: High Voltage - Fusor Input Power (& FAQs)
Topic: xray transformer
Replies: 7
Views: 4397

Re: xray transformer

Quick update, I measured the resistance of the primary coil of the transformer and got 1.4 ohms. This seemed quite low and after i did a quick current calculation with 120V, I found that the current running through the primary should be 85 amps!!! this is way to high so I figured that my multimeter ...
by David Lloyd-George
Wed Jun 27, 2018 10:17 pm
Forum: High Voltage - Fusor Input Power (& FAQs)
Topic: xray transformer
Replies: 7
Views: 4397

xray transformer

My friend and I recently bought an X-ray head from eBay and I took it apart. I will be ohm metering the wires soon. I found that the transformer was quite small and am unsure if it will be suitable for proper fusion work. The label says that it outputs 65kV at 10mA however is only suitable for 2sec ...