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Registered Member #30
Joined: Fri Feb 03 2006, 10:52AM
Location: Glasgow, Scotland
Posts: 6706
OK, well my plan is to reuse the same dinky ferrite cores, but wrap them in teflon plumbers' tape and then use that kynar insulated wire-wrap wire instead of magnet wire. It's about the same overall thickness as the magnet wire I used, but the insulation looks much better. I'll make a trial one and hi-pot test it again.
Registered Member #30
Joined: Fri Feb 03 2006, 10:52AM
Location: Glasgow, Scotland
Posts: 6706
Hmm, TEX-E wire looks pretty good. Richie recommended it to me too. I'm not trying to actually get any formal safety approvals though, so it would be overkill. If it can withstand 1600V peak at 50Hz for 5 minutes, I'll call it a success.
Registered Member #30
Joined: Fri Feb 03 2006, 10:52AM
Location: Glasgow, Scotland
Posts: 6706
Update: I tried a new GDT design using Kynar wire on Teflon wrapped cores. It easily survived a zapping with a MOT at 1600V peak! I moved the pictures and write-up to the first post.
Registered Member #63
Joined: Thu Feb 09 2006, 06:18AM
Location:
Posts: 1425
If you do get flashover or arcs, try not to breathe the fumes -- you probably already know Teflon has some pretty fantastic decomposition products at high temperatures.
Registered Member #30
Joined: Fri Feb 03 2006, 10:52AM
Location: Glasgow, Scotland
Posts: 6706
Well, I think I've actually sold him, but if the deal falls through or gets delayed, he may well be appearing at Cambridge. See the first post for details.
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