The so called 3 way switch is actually a single pole double throw switch. The so called 4 way switch is a double pole double throw switch witch has been internally wired to be a reversing switch. lets call the screws A B C and D. In one position of the lever the circuits are from A to B and another independent one from C to D. When the position of the lever is changed the circuits are from A to D and C to B. These used to be sold as 6 way switches with all six connections brought out and the electricians had to wire them themselves.
Regards. Max. K 4 O D S. Email: [email protected] Transistor site http://www.funwithtransistors.net Vacuum tube site: http://www.funwithtubes.net Music site: http://www.maxsmusicplace.com To subscribe to the fun with transistors group send an email to. [email protected] To subscribe to the fun with tubes group send an email to, [email protected] ----- Original Message ----- From: "RJ" <[email protected]> To: <[email protected]> Sent: Tuesday, February 16, 2010 10:09 AM Subject: Re: [BlindHandyMan] 4 way switch > You call it two 3 ways and 2 4 poles > ----- Original Message ----- > From: Dale Leavens > To: [email protected] > Sent: Monday, February 15, 2010 22:48 > Subject: Re: [BlindHandyMan] 4 way switch > > > > My arrangement has four switches. One at the bottom of the stairs. The > stairs split at the landing, left and right. there is a switch at the top > of the right branch for the corridor in the old side of the house and > there is a switch outside of each bedroom on the landing at the top of the > left split of stairs, four switches altogether. they operate a set of four > lights, one on the wall outside of each of the left bedrooms in the new > addition, one in the corridor in the old half of the house and a fourth > over the stairs.these lights can all be turned on or off from any of the > four points. I don't know what you call that arrangement. > > If I was Han Solo I'd probably pet my wookie > ----- Original Message ----- > From: clifford > To: [email protected] > Sent: Monday, February 15, 2010 9:30 PM > Subject: [BlindHandyMan] 4 way switch > > Dear Dale: > I am quite sure we are talking about different situations. The 4 way > switch arrangement I am referring to, involves one light and three > switches, each of which can turn the light on or off. I have such a > situation with regard to my entry hall lights. I have a switch just inside > the exterior door, which is in the center of the hallway, with switches at > either end, which allows a person coming in to the hallway from the > kitchen end or the bedroom end to turn the lights on or off. > A 3 way switch is used in tandem so that the user can turn the light on > or off from two locations. As you know, one can series several lights so > that one switch controls all of them, such as in my hallway, where we have > three recessed lights. My first wife picked them, and am I glad, because > she has griped for thirty-three years about how little light these can > lights produce. > > Yours Truly, > > Clifford Wilson > > __________ Information from ESET NOD32 Antivirus, version of virus > signature database 4869 (20100215) __________ > > The message was checked by ESET NOD32 Antivirus. > > http://www.eset.com > > [Non-text portions of this message have been removed] > > [Non-text portions of this message have been removed] > > > > > > [Non-text portions of this message have been removed] > > > > ------------------------------------ > > Send any questions regarding list management to: > [email protected] > To listen to the show archives go to link > http://www.acbradio.org/pweb/index.php?module=pagemaster&PAGE_user_op=view_page&PAGE_id=33&MMN_position=47:29 > Or > ftp://ftp.acbradio.org/acbradio-archives/handyman/ > > The Pod Cast address for the Blind Handy Man Show is. > http://www.acbradio.org/news/xml/podcast.php?pgm=saturday > > Visit The Blind Handy Man Files Page To Review Contributions From Various > List Members At The Following address: > http://www.jaws-users.com/JAWS/handyman/ > > Visit the archives page at the following address > http://www.mail-archive.com/[email protected]/ > > If you would like to join the JAWS Users List, then visit the following > address for more information: > http://www.jaws-users.com/ > For a complete list of email commands pertaining to the Blind Handy Man > list just send a blank message to: > [email protected]! Groups Links > > > > -------------------------------------------------------------------------------- No virus found in this incoming message. Checked by AVG - www.avg.com Version: 8.5.435 / Virus Database: 271.1.1/2689 - Release Date: 02/15/10 07:35:00
