~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ If I wanted ancient history, that's where I'd look. Codes change sometimes and that's why the post. 73, Bill W6WRT __________________________________
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ I'm not so sure. It has changed once that I know of when they went from a three wire plug to four. After sifting and filtering all the responses, I b
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ I'm not sure that is the "safest" approach, event though it is allowed by NEC. IMO, the safest system is to use two hots and a safety ground, and no
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ Yes, I'm sure that is the reason the four-wire circuit is permitted. I still maintain the safest and best approach for future equipment would be two
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ I'm afraid it actually is more complicated than you think. First of all, if your fan stops running that itself is a safety hazard, but the complicati
<snip> <snip> ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ Are you citing your one experience with an open neutral as proof that it is safe for everybody? I have seen other posts about the havoc caus
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ If I were writing the NEC, I would not allow that type of 120/240 equipment. Make it one or the other and require a separate step-up or step-down tra
You have all indulged me regarding my quest for the safest way to do 120/240 volt wiring and I appreciate that. Looking ahead to the distant future, here is something I would like everyone, including
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ If you mean the mechanical vibration at 1kHz, I agree it might be difficult to eliminate, but still worth experimenting with. If you mean the electri
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ Your statement puzzles me. A house powered by AC mains of about 1 kHz or higher is shockproof. The human nervous system does not respond to frequenci
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ What's wrong with the picture is you got both DC and RF together. RF alone would have caused only the burn part, not the shock part. Serious enough,
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ Agreed. That was my original intent. 73, Bill W6WRT _______________________________________________ Amps mailing list Amps@contesting.com http://list
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ The only "waste of bandwidth" I've seen so far is the above post. All the others had something to contribute. Ok, this one qualifies too. Sorry. :-)
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ 400 Hz is too low to be "shockproof". I've performed the experiments on myself and that's how I know. For me, the threshold is about 600 Hz. At 1 kHz
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ Actually, I would like to hear about the solid-state amp, even though they have been discussed here before. Be sure to include information about the
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ Not being a QEX subscriber (maybe I should be) I'd like to hear more about it. I considered a SS amp before beginning my current 8877 project but was
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ Sounds good. I almost wish I hadn't started the 8877 project but it's too far along to stop now. :-) Where does one find the surplus telecom supplies
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ Try West Marine. They have 15 kv wire at .89 per foot. I bought 20 feet of it and it's good stuff. 73, Bill W6WRT ___________________________________
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ I have a W9INN trap dipole which will handle the legal limit all day long. INN is an SK now and I don't now if his antennas are still being sold, but
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ This is a question I've often wondered about. Does a cathode resistor in a grid-driven amp actually produce negative feedback, or does it merely redu