Fred, That "circuit" nomenclature has a lot of other people confused, and even some confusion has crept into parts catalogs (but not the mainstream distributors). I have seen stereo plugs and jacks called both 2 circuit and 3 circuit - I guess they might refer to the number of pins - then there may be extra contacts in the jack and I have seen a mono jack with a closed circuit output pin also referred to as a 3 circuit jack - I guess was because it has 3 pins (circuits?). Talk about being confused - and frustrated after you receive the order - I won't order from that source again.
73, Don W3FPR On 12/3/2010 5:03 PM, Fred Jensen wrote: > What is a "3-circuit phone plug?" I know about 1-circuit plugs > [tip-sleeve providing one circuit] and 2-circuit plugs [tip-ring-sleeve > providing two circuits -- tip-sleeve and ring-sleeve]. Is this > referring to 2-wire and 3-wire plugs? I've seen on the list here that > the wrong plug will blow the AF amplifier. > > I followed the legends on the back panel and I don't use the front panel > mic or headfone jacks. Where it said MONO, I use a 1-circuit plug, > STEREO gets a 2-circuit plug. I use cables from Radio Shack between > sound card and radio and they seem to work fine. I really hope I'm not > screwing something up in my radio. > > 73, > > Fred K6DGW > - Northern California Contest Club > - CU in the 2011 Cal QSO Party 1-2 Oct 2011 > - www.cqp.org > > On 12/3/2010 12:38 PM, Don Wilhelm wrote: >> James, >> >> That is incorrect. If you plug a 3.5mm mono plug into the adapter, it >> will short between the ring and sleeve on the 1/4 inch side too. >> >> 73, >> Don W3FPR >> >> On 12/3/2010 2:45 PM, James Sarte (K2QI) wrote: >>> I'm assuming however that a 2 circuit plug into a 3 circuit adapter should >>> be fine; i.e. plugging a 3.5mm mono plug into 1/4" stereo to 3.5mm stereo >>> adapter, which is then inserted into the 1/4" phone socket? >>> >>> Tnx, >>> James K2QI > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft@mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
