I knew that SF6 was a good dielectric gas, but I thought that it was poisonous or something. Its good to know that it's safe stuff. Is it hard to come by?
-Dan
-Dan
Absolutely non-toxic (hey, I was *breathing* the stuff!), though if you do arc in it, it can produce low levels of fluorine which is toxic.
Easy to get- our local gas cylinder suppliers have it. If you've got an Air Products distributor nearby, they're a good source.
Easy to get- our local gas cylinder suppliers have it. If you've got an Air Products distributor nearby, they're a good source.
Read the ESL cookbook, he discusses transformer selection quite a bit. The published ratings aren't the ratings you are looking for. The voltage you are quoting is peak to peak, the rated voltages are usually RMS, for example.
Hey, i've got a question for the ESL elite: if you use a step up transformer to increase voltage to drive an ESl and you step down voltage from a tube amp to drive a speaker, why can't one drive an ESL directly from the output of a tube amp before the output transformer? or, could one consolidate both transformer ratios and use only one transformer?
Not enough voltage in most tube amps; you want to swing a couple of kilovolts, not the puny 200-400 volts of conventional tubes.
A purpose-built amp having an output transformer with, say, a 1 to 5 primary to secondary ratio might do the trick. I'm unaware of anyone making such a transformer, though.
A purpose-built amp having an output transformer with, say, a 1 to 5 primary to secondary ratio might do the trick. I'm unaware of anyone making such a transformer, though.
It's been done, try a web search for OTL and ESL.
Here's one circuit, although this is from surfing and not personal experience. Direct Drive OTL ESL amp
Here's one circuit, although this is from surfing and not personal experience. Direct Drive OTL ESL amp
DIRECT ESL.
You can also play it local here:
http://www.diyaudio.com/forums/showthread.php?s=&threadid=395
Cheers,😉
You can also play it local here:
http://www.diyaudio.com/forums/showthread.php?s=&threadid=395
Cheers,😉
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