[Elecraft] Curiosity Only, somewhat off topic.

2011-12-14 Thread David Dunn
I noted recently several refs by USA users asking about 240 volt ac power plugs etc. Now I have never even been to a 110v country - possibly only USA ? - and I can see a degree of (shock) safety offered with that system, but I can hardly imagine the mass of copper required to carry possibly

Re: [Elecraft] Curiosity Only, somewhat off topic.

2011-12-14 Thread Ron D'Eau Claire
Most American homes have 240V at the entrance (circuit breaker or distribution) panel. But, since most US electrical appliances and lamps have been 120V for(almost)ever, the electrical system is split with 120V single phase running to most outlets. 240V service is supplied to things like electric

Re: [Elecraft] Curiosity Only, somewhat off topic.

2011-12-14 Thread Milt -- N5IA
appliance or lighting fixture. I hope that helps a bit with your understanding. Milt, N5IA -Original Message- From: David Dunn Sent: Wednesday, December 14, 2011 3:04 PM To: elecraft@mailman.qth.net Subject: [Elecraft] Curiosity Only, somewhat off topic. I noted recently several refs by USA

Re: [Elecraft] Curiosity Only, somewhat off topic.

2011-12-14 Thread David Dunn
appliance or lighting fixture. I hope that helps a bit with your understanding. Milt, N5IA -Original Message- From: David Dunn Sent: Wednesday, December 14, 2011 3:04 PM To: elecraft@mailman.qth.net Subject: [Elecraft] Curiosity Only, somewhat off topic. I noted recently several refs

Re: [Elecraft] Curiosity Only, somewhat off topic.

2011-12-14 Thread Jim Brown
On 12/14/2011 2:33 PM, Milt -- N5IA wrote: The standard residential service in the US of A is 120/240 Volts AC. Another very important difference between UK practice and North American practice is that in the UK, ring circuits are used, while they are not in the US. The central breaker panel

Re: [Elecraft] Curiosity Only, somewhat off topic.

2011-12-14 Thread Fred Jensen
Hi David, I think Milt [he and I share the same family name, no relationship however] explained it well. Regarding safety, I'm not sure it makes a whole lot of difference. However, I distinctly remember reading somewhere that 450 VAC is the most lethal. I don't know why. That service in

[Elecraft] Curiosity

2006-06-06 Thread Martin Gillen
Hi, Folks. I had an interesting experience yesterday. I was practicing using a desoldering tool as I have never used one before and wanted to get my choreography figured out before I start desoldering components to install the 80m module, so picture this: The KX1 board is sitting in a plastic

RE: [Elecraft] Curiosity

2006-06-06 Thread Don Wilhelm
Martin, Quite simply, you were creating a 'ground loop' and the FT-51 was inside the electric field created by that ground loop. If you had a 'rubber ducky' on the FT-51 that should be explaination enough, but if you were using an outside antenna, then you may want to look at the field of the