Jim, The manual copies I have do not show what series.
There is one neon lamp shown, and it is designated as the "pilot lamp". They may indeed made a later version, however - I haven't seen it or one. There have been way too many models of Hallicrafters for me to keep up with. Bob - N0DGN On 7/2/2010 7:20 PM, james.liles wrote: > Bob, > The Ht-40 used a neon indicator for over modulation announcement --- I > believe it was the K level schematic. Also, there were numerous audio > changes made. Kindest regards Jim K9AXN > > ----- Original Message ----- > From: "rbethman"<rbeth...@comcast.net> > To: "Discussion of AM Radio in the Amateur Service" > <amradio@mailman.qth.net> > Sent: Friday, July 02, 2010 5:22 PM > Subject: Re: [AMRadio] DX 60 mods > > >> Jim - The HT-40 came out before zeners and leds unless I'm really out >> in left field. >> >> Bill Breshears', WC3K, modification used those components to give an >> over modulation "indicator" to adjust the mic gain with, and allow the >> operator to run with a clean signal. Circa 1999 - 2002. >> >> Bob - N0DGN >> >> On 7/2/2010 5:55 PM, james.liles wrote: >>> Hi Bob: >>> I believe that over mod detection change originated in the latest version >>> of >>> the Hallicrafters HT-40. Look at the latest schematic and you will see >>> some >>> very effective modulation changes to that radio. >>> Kindest regards Jim K9AXN >> ______________________________________________________________ >> Our Main Website: http://www.amfone.net >> AMRadio mailing list >> Searchable Archives: http://www.mail-archive.com/amradio@mailman.qth.net/ >> List Rules (must read!): http://w5ami.net/amradiofaq.html >> List Home: http://mailman.qth.net/mailman/listinfo/amradio >> Post: AMRadio@mailman.qth.net >> To unsubscribe, send an email to amradio-requ...@mailman.qth.net with >> the word unsubscribe in the message body. >> >> This list hosted by: http://www.qsl.net >> Please help support this email list: http://www.qsl.net/donate.html > ______________________________________________________________ > Our Main Website: http://www.amfone.net > AMRadio mailing list > Searchable Archives: http://www.mail-archive.com/amradio@mailman.qth.net/ > List Rules (must read!): http://w5ami.net/amradiofaq.html > List Home: http://mailman.qth.net/mailman/listinfo/amradio > Post: AMRadio@mailman.qth.net > To unsubscribe, send an email to amradio-requ...@mailman.qth.net with > the word unsubscribe in the message body. > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > -- +------------------------------------------------------------------+ | AM Amateur Radio Operator NØDGN | +------------------------------------------------------------------+ | http://home.comcast.net/~rbethman/ | +------------------------------------------------------------------+ | Bob Bethman \\\|/// " The absence of a danger | | \\ ~ ~ // signal does *NOT* mean | | rbeth...@comcast.net (/ @ @ /) that everything is OK " | +----------------------o00o---°(_)°---o00o-------------------------+ ______________________________________________________________ Our Main Website: http://www.amfone.net AMRadio mailing list Searchable Archives: http://www.mail-archive.com/amradio@mailman.qth.net/ List Rules (must read!): http://w5ami.net/amradiofaq.html List Home: http://mailman.qth.net/mailman/listinfo/amradio Post: AMRadio@mailman.qth.net To unsubscribe, send an email to amradio-requ...@mailman.qth.net with the word unsubscribe in the message body. This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
