Search found 325 matches
- Tue Mar 09, 2021 1:52 pm
- Forum: High Voltage - Fusor Input Power (& FAQs)
- Topic: Custom Fusor Power Supply
- Replies: 13
- Views: 1864
Re: Custom Fusor Power Supply
Nice job on those transformers!
- Fri Feb 26, 2021 2:46 am
- Forum: Items wanted
- Topic: Seeking ballast resistor
- Replies: 6
- Views: 487
Re: Seeking ballast resistor
I'll have to look though the pile of parts that just came out of an old vacuum tube AM transmitter. Should be some 50K ohm 100 watt wirewound resistors in there.
- Mon Feb 22, 2021 9:49 pm
- Forum: Fusor Construction & Operation (& FAQs)
- Topic: Mass flow controller question
- Replies: 20
- Views: 2026
Re: Mass flow controller question
Mine is a Sierra Instrumentation "Side track III" "cust code I-458 Range 0-10 SCCM Orifice .010" Gas H2. I found it on Ebay. Any MFC that can be set for 0-10 SCCM will do.
- Fri Feb 19, 2021 3:09 pm
- Forum: Fusor Construction & Operation (& FAQs)
- Topic: Mass flow controller question
- Replies: 20
- Views: 2026
Re: Mass flow controller question
I use a 0-10 SCCM mass flow controller. I set the flow rate with a 10 turn pot. For my chamber, I usually operate between 3-5 SCCM.
- Wed Feb 17, 2021 11:46 pm
- Forum: Images du Jour
- Topic: Auxiliary Electronics Module
- Replies: 2
- Views: 449
Re: Auxiliary Electronics Module
Yep, there is a lot to be said for old school relay ladder logic with physical relays, not fragile PLCs
- Wed Feb 17, 2021 11:37 pm
- Forum: Announcements and Site Administration Topics
- Topic: Not a covid post! Get ready for the vacuum
- Replies: 18
- Views: 2792
Re: Not a covid post! Get ready for the vacuum
Although this can change as the date approaches, our local Murgas ARC Hamfest is still scheduled for the first Sunday in July. It is an outdoor "tail gate" hamfest.
- Fri Feb 12, 2021 2:16 am
- Forum: Vacuum Technology (& FAQs)
- Topic: info about TPH-050
- Replies: 5
- Views: 491
Re: info about TPH-050
For the lube oil, try turbovacuum.com, idealvac.com or provac.com. There may be other vendors that I have missed.
- Thu Feb 04, 2021 3:39 pm
- Forum: High Voltage - Fusor Input Power (& FAQs)
- Topic: Extremally cheap HV feed through (if you have a lathe in hand)
- Replies: 18
- Views: 2053
Re: Extremally cheap HV feed through (if you have a lathe in hand)
If you have a power supply capable of a constant current mode, operate a fusor in constant current mode and let the voltage fall where it may, after setting the voltage for the maximum you want under no load condition.
- Thu Jan 28, 2021 9:34 am
- Forum: Images du Jour
- Topic: Six Inch Cross Fusor
- Replies: 50
- Views: 5990
Re: Six Inch Cross Fusor
I am also at somewhat of a standstill because my feed through now has trouble making 29 KV without arcing issues. On the vacuum side no less.
- Tue Jan 19, 2021 12:08 am
- Forum: Images du Jour
- Topic: Six Inch Cross Fusor
- Replies: 50
- Views: 5990
Re: Six Inch Cross Fusor
What voltage are you hoping for? That's a pretty long insulator. If you go much over 35 KV, the sharp edges of the nuts on top are going to cause corona issues.