Re: [AMRadio] Modulator question.
Several members of the Gulf Coast Mullet Society Net on 3885 kcs use the combination of a DX-60 driving a Heath SB-200 and their audio sounds great, along with some RF punch to boot. 73 Robert W4RL Trustee of W4GCM - Original Message - From: "Bob Macklin" To: "Discussion of AM Radio in the Amateur Service" Sent: Friday, May 07, 2010 5:33 PM Subject: Re: [AMRadio] Modulator question. >A transmitter like the DX-60 puts out about 12W of carrier in AM mode. It > uses Controlled Carrier modulation and does not require a modulation > transformer. > > Bob Macklin > K5MYJ > Seattle, Wa. > "Real Radios Glow In The Dark" > - Original Message - > From: "MUCHSTUFF" > To: "Discussion of AM Radio in the Amateur Service" > > Sent: Friday, May 07, 2010 3:05 PM > Subject: Re: [AMRadio] Modulator question. > > >> Have you considered using a car audio amplifier in a cathode modulation? >> If possible it could avoid finding another transformer that would stand >> the >> higher voltage and current in a plate arrangement. >> I give this some thought every time I'm in my friends car audio store. >> But, being one who always starts too much new stuff, I stop thinking >> about >> it. >> >> Gene, WB6SZS >> >> >> >> - Original Message - >> From: "RICHARD GEORGE" >> To: "amlist" >> Sent: Friday, May 07, 2010 12:34 PM >> Subject: [AMRadio] Modulator question. >> >> >>>I have over the years built several low power AM transmitters. I would >>>like >>>to build something a little bigger say in the 400-500 watt plate >>>modulated. >>>I have been kicking around the idea of using one of the solid state >>>amplifiers made for car audio driving a reverse connected audio >>>transformer. I have seen these audio output transformers available in the >>>200 watt range. I understand that the RF output stage would have to be >>>designed to fit the impedence of the output transformer. Does this sound >>>like it could be done? >>> >>> K6KWQ Dick >>> Amps by "MORE POWER" >>> __ >>> 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 >> > > __ > 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
Re: [AMRadio] Retro-75
You see, Dave, I told you the Gulf Coast Mullet Society W4CGM would support you . A bunch of use have already ordered them and one has one built ie N4RT. I am in the process of building mine. When are you going to have a travel agency start booking air fares, hotel rooms, and factory tours for the masses? I am tickled to death for you. You though you'd be retired by now, huh? bst 73 Robert W4RL Pensacola FL Trustee of W4GCM - Original Message - From: To: "AM Radio" Sent: Tuesday, April 20, 2010 12:30 PM Subject: [AMRadio] Retro-75 > gang- > > The Retro-75 now has its own user group, thanks to the efforts of David > Searle, ZL3DSW. > > it's: http://groups.yahoo.com/group/SWLRetro75/ > > > 73- Dave Benson, K1SW > > __ > 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
Re: [AMRadio] retro 75
My friend Ron N4RT built one and had a nice chat with Art N4JK about 90 air miles away one afternoon recently. And I have one still in the kit form that I will soon built. It's a fun project for us here at the 65 dollar price and I will have fun with it just as I do with my Norcal 40A qrp cw 40 meter transceiver. I am quite sure some will put the Retro 75 retrofitted in a WWII, Korean, or VN comm handheld/backpack and have a ball at hamfest with a long whip antenna. It's a venture and I am thankful that the Small Wonder Labs came out with it..for our fund to build. Kudos I say to Dave Benson K1SWL. It's not like he had to do this for us, as in I don't think he's going to become a millionaire from this endeavor. As I am in my retirement years I laud those who provide us with constructive projects to complete. Hear here, hear here, hear here. Thanks Dave. 73 Robert W4RL - Original Message - From: To: ; Sent: Wednesday, April 07, 2010 8:23 PM Subject: Re: [AMRadio] retro 75 >I also was thinking a 40 meter version would be really nice. At those > qrp levels and with summer approaching it would be a winner!! Heck why > not a 10 meter version too! Maybe he should offer a deluxe multiband > AM transceiver kit! Chaching! > > John KX5JT > > > -Original Message- > From: Brett Gazdzinski > To: Discussion of AM Radio in the Amateur Service > > Sent: Wed, Apr 7, 2010 5:53 pm > Subject: [AMRadio] retro 75 > > > Speaking of building, there is a new AM transceiver kit: > http://smallwonderlabs.com/Retro-75.htm > > I built it, it works well. > I IS very simple, and lacks things like a good agc, variable filter, > vfo, S > meter. > I let small wonder labs know a deluxe kit would sell like hotcakes at a > lumberjack convention... > I also asked for a 40 meter version. > > Brett > N2DTS > > > > __ > 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 __ 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
Re: [AMRadio] CCA First Wednesday AM Night ---- TONIGHT!!!
Larry, Do you still post to the SAMRC reflector. The one Andy WA4KCY. I understand one has to type in the Subject box: [SAMRC] leaving the rest of the subject line blank. Then proceed with the message in the message box area. 73 Robert W4RL Trustee of W4GCM callsign of the Gulf Coast Mullet Net on 3.885 bout's 6pm central daylight savings time Thursdays. Come join us. - Original Message - From: "Larry WA9VRH" To: "AMRadio ref" Sent: Wednesday, April 07, 2010 3:31 PM Subject: [AMRadio] CCA First Wednesday AM Night TONIGHT!!! > FIRST WEDNESDAY AM NIGHT!!! Sponsored by the Collins Collectors > Association. > > Wednesday April 7th, 2010 on 3880 kcs at 7:00 PM local East Coast time > marks > the start of the latest > chapter of First Wednesday AM Night, drawing hundreds of vintage stations > from across the country. > > SPECIAL COMMENT! > > Since band conditions have been rather unique this Fall and Winter I would > ask that if one of our anchor stations is having trouble contacting > stations > in his area PLEASE > step up to the plate and offer to help out. It does not matter where you > are > or how much power you are running please lend a hand. > > Mike who runs the Mighty Elmac net on the other Wednsday nights of the > month > has been doing that and he has been working stations all over the country. > > This is about AM activity not necessarly Collins AM activity. Please pitch > in and help! > > Thanks! > Larry WA9VRH > AM Night Coordinator > > > The East Coast and Central sections run for 90 minutes in response to the > tremendous participation in those time zones. The remaining time zones > will be an hour. We encourage stations to check-in on AM using Collins and > other AM transmitters, new and > old. It's an opportunity to revel in this nostalgic mode, enjoy giving > vintage equipment a "run," and sharing > some storytelling about classic vacuum tube homebrew and commercial > designs. > Typically more than a > hundred stations take part in the evening's coast-to-coast AM event; by > the > time it concludes at 10:00 PM > Local PST. > > LISTEN for the following anchors and stop by to say hello, won't you? You > don't have to be running Collins > or vintage gear to be welcomed into the group. > > 7:00 PM-8:30 PM Local East Coast Time Anchor: Bob W0YVA > > 7:30 PM-9:00 PM Local Central Time Anchor: Jim W0NKL and Brian K0EFJ > > 8:00 PM-9:00 PM Local Mountain Time Anchor: K0OJ Jim and Chuck KD0ZS > > 8:00 PM-9:00 PM Local West Coast Time Anchor: WA6FIZ Mickey > > We are still looking for additional anchors in the West Coast time zone. > Please contact me if you are interested! > > comments please to wa9...@dishmail.net > > __ > 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
Re: [AMRadio] RETRO 75 Build
Hi All, Robert W4RL here in Pensacola FL. I just ordered one and have also sent an email to Smallwonders about obtaining a cabinet for my Retro 75. Tell you the truth it's plain just fun building good kits now days and enjoying the final test runs. Same with my Norcal 40A 40 meter CW QRP transceiver which by the way has one of the hottest receivers I've ever listened to on the air. When the 60 meter SSB transceivers come into production I will order one of those to build. All this certainly beats watching the grass grow from the shack while in retirement. Money well worth spent to keep mentally active. Regards, Robert - Original Message - From: "Brett Gazdzinski" To: "Discussion of AM Radio in the Amateur Service" Sent: Friday, March 19, 2010 9:49 PM Subject: Re: [AMRadio] RETRO 75 Build >I ordered one a few days ago. > Thinking about mods, nicer mod iron, adjustable modulation levels, line > input,better filter, etc! > > The design sort of seems like an old cheap cb radio on 75 meters > What about an S meter... > And dyna-mic. > > Brett > > > > > - Original Message - > From: "LEE BAHR" > To: "Discussion of AM Radio in the Amateur Service" > > Sent: Friday, March 19, 2010 10:02 PM > Subject: [AMRadio] RETRO 75 Build > > >>I have about 2/3 of the receiver built up on my Small Wonder RETRO 75 AM >>QRP >> transceiver. That maybe is around 80 parts mounted so far. >> >> So far, no missing parts and it is going together without a hitch. I did >> substitute machine grade IC sockets, gold plated, instead of using the >> stamped ones supplied with the kit. >> >> Anyone interested in the kit, the kit is a board only kit. You have to >> supply the cabinet, pots, jacks, knobs, etc. I am making a case for it >> out >> of PC board material as I did for the Ft Tuthill 80 CW transceiver I just >> built. That case came out looking beautiful. Building your own case >> allows >> one to size the cabinet to the PC board. >> >> For a mic I am going to try a $11.00 Cobra dynamic CB mic readily >> available >> on E-bay. >> >> All the parts supplied seem to be first class. >> >> 73, >> >> Lee, w0vt >> Houston >> >> __ >> 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 __ 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
Re: [AMRadio] SAMRC Tues Nite
And fellows, don't forget the Gulf Coast Mullet Society Net on Thursday nights on 3885 Kilocycles in the AM mode at 530 pm Central Time (a half hour earlier in Winter). Net control station call sign is W4GCM. tnx es 73 Robert W4RL W4GCM Trustee Note the GCMS and Southeastern AM Radio Club both support each other wholeheartedly. SAMRC is known for its get-to-gathers for great BBQ and the GCMS for fresh fried mullet and seafood. Yall Come, ya hear! On Wed, Jan 20, 2010 at 4:20 PM, Bernie Doran wrote: > every tue? time? freq? Bernie > - Original Message - > From: "VJB" > To: > Sent: Wednesday, January 20, 2010 3:22 PM > Subject: [AMRadio] SAMRC Tues Nite > > > > WOW, more than 50 stations checked in last evening on the Tuesday > > Southeastern AM Radio Club's gathering on 80m. > > > > Andy, WA4KCY was the anchor station, and the band started out short with > > most of the check-ins from the southern states toward the Gulf Coast. But > > by 7pm the band changed and holey moley signals pushed the meter way over > > to the right. > > > > Warren, W1GUD (Tampa Fla.), Robert W0VMC (Wisc), TimTron WA1HLR (Maine), > > and soon after, Bill KD0HG (Colo.) all heard in Georgia to illustrate the > > geography covered. > > > > Good stuff. > > > > Paul/VJB > > > > > > > > __ > > 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 > -- PLEASE READ: If you forward ths correspondence, please delete the forwarding history which includes my email address. It is a courtesy to me and others who may not wish to have their email addresses sent all over the world. Erasing the history helps prevent Spammers from mining addresses, and viruses from being propagated. (Please feel free to copy this for use on your emails) __ 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
Re: [AMRadio] MCM Electronics digital multimeter for $2.99
Yes Bernie I agree. And also true gifts that are unconditionally given to friends and strangers are those that need not be mentioned publicly, as if so, they are not gifts but hidden agendas by the giver. Yes, this is rather sad. But what goes around, comes around. I think though for some the old adage of "mine is bigger than yours" prevails as their primary life's mantra. I'm out of here on this thread. Robert W4RL - Original Message - From: "Bernie Doran" To: "Discussion of AM Radio in the Amateur Service" Sent: Thursday, September 24, 2009 5:01 PM Subject: Re: [AMRadio] MCM Electronics digital multimeter for $2.99 >I guess we can see from some comments that it must be normal to mark up an > item 200 to 300 percent to make a few bucks at a hamvention. I find that > rather sad. Bernie __ 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
Re: [AMRadio] Relay Voltage ID
Fellas, I want to take the time and thank you all for helping me learn so much more about relays. It never ceases to amaze me how much grey matter is out there within our ham radio fraternity willing to help. I know we all feel that this 'hobby' of ours crosses all professional, religious, and political boundaries world wide in the pursuit of enjoying all its rewarding facets and sharing it. For me, a very important portion of my journey on this earth of ours. 73 Robert W4RL --- On Sat, 7/4/09, Larry Szendrei wrote: From: Larry Szendrei Subject: Re: [AMRadio] Relay Voltage ID To: "Discussion of AM Radio in the Amateur Service" Date: Saturday, July 4, 2009, 10:45 AM Robert Lawson wrote: > Gentlemen, > > I've a Potter & Brumfield KR-2349-1 double pole single throw open frame > relay. I am trying to find out the AC or DC voltage requirements as they are > not marked on the coil. The coil measures 11.7 Kohms. Any help would be > appreciated. I've already done a Google search with no results on this > particular relay. Thanks in advance. > > 73 and fly our Flag, > > Robert W4RL Pensacola FL > > As a knowledgeable listmember replied, this could be a 110VDC coil. It could also be a "plate relay," used in the plate circuit/load of a relay control tube (these were typically 10Kohms nominal resistance). Even if not intended for use in that application, it certainly would work there. 73 and Happy Fourth, -Larry/NE1S __ 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
[AMRadio] Relay Voltage ID
Gentlemen, I've a Potter & Brumfield KR-2349-1 double pole single throw open frame relay. I am trying to find out the AC or DC voltage requirements as they are not marked on the coil. The coil measures 11.7 Kohms. Any help would be appreciated. I've already done a Google search with no results on this particular relay. Thanks in advance. 73 and fly our Flag, Robert W4RL Pensacola FL __ 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
[AMRadio] Collins 32V-2 K301 Relay
Calling All Collins Parts and Components bin and junk box owners: I know this is a long shot, but I need a replacement relay for my Collins 32V-2. Item: K301 Circuit Description: Carrier Control Description: Relay/circuit control; contacts 1A1B1A and 2A 48 volt DC per the manual Collins Parts Number: 970 1014 00 Thanks for the read. 73 Robert W4RL Pensacola FL __ 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
Re: [AMRadio] shocks, interlocks and misc
With both hands raised, I comment. Ah yes, one of several ceremonies in becoming a grown man and un-idiot. Thank goodness we're not counting body scars. HI My claim to fame: While holding a D-104 sitting in an old chrome chair with worn out seating fabric and leaning back on the two legs mostly and with my bare feet up on the bench during a QSO in my garage shack I inadvertently rocked one of the back legs (without the rubber foot) on a live extension cord. I was just having a good ol'time jawing away on 6 meters AM . But every time I'd lean forward wanting to write down a comment note I get the you know what shocked out of me. Remember me holding the D-104? Yours truly aka super brain finally saw what was happening and the next minute or so I was in deep though on how long I could remain teetered back in that wiggly frame chair before I figured how to get out of my predicament And you ask, what was I wearing to make that AC circuit. We (family-read young wife and two screaming kids full of sand and sunburned) just came home from the beach and I heard 6 meters wide open. Mother and kids were inside showering and all. Superbrain was still in his wet salt water bathing suit being called for the '6 meter chase'. Of note: While still in a state of teetering, my wife came back out into the garage with her unhappy mama face on and demanded when I was going to come in and help her with the children. I said, "Honey, I can't right now, believe me". I will not discuss what transpired in the next 30 seconds but I was still teetering when she slammed the door muttering something about how stupid she was to have in the first place. And then I was alone again.still teetering but none the worse for ware from her personal evaluation of me, aka her idiot husband, the father of her poor innocent children smitten with their father's genes, and so on. How did I escape my delima you ask. No not the familial one, but the ham radio one. Well, I am proud to say that I did get my cherished D-104 back intact on the operating bench. I pitched it as accurately as I could. But in doing so, (remember me still teetering), I lost my balance in that so name position and ended up falling out of the chair (which that day ended up in the trash bin) and me tumbling down the back garage concrete steps after my route of passing through the door opening to the back yard. And man did that supper green grass feel good. I kinda laid there a spell looking at puffy clouds and soaring birds and eventually heard my wife and kids leave evidently to go out to eat. I compose myself and went into the kitchen and had a PBJ and glass of milk while reflecting upon my brush with imminent demise. No not the electrical one, the one with the wife. This story is true. Want me to show my scars? Yes, the ham radio ones! 73 Robert W4RL Lee Richardson wrote: Everyone who has */not/* performed that manuever, raise your hand! 73 de Lee, W5JQA __ 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 Help: http://mailman.qth.net/mmfaq.html Post: mailto:AMRadio@mailman.qth.net To unsubscribe, send an email to amradio-requ...@mailman.qth.net with the word unsubscribe in the message body.
Re: [AMRadio] FW: [Fwd: On-Line Equipment Catalogue Now Available]
Excellent posting. Have bookmarked it. As an example, I certainly was focused on the details of the Listening Sonobuoy #0390. Fascinating reading for a non-engineer type. What does it have to do with BA's, about near the same as the Pope with Catholicism I would imagine. You know some late teen young air-dale or tin can Sailor way back had to digest some of those manual's details like the back of his hand. To have when the balloon went up. I've listened to old timers who in the 50's / early 60's who during the cat and mouse North Atlantic games between Navies huddled amid ship in a P-2 or P-3 patrol aircraft in the dead of winter at night with low overcast bumping along at 500 feet altitude having to shove those ear bullets out the tube into the seas and then start their listening routinewithout the conveniences of a oak paneled gentleman's smoking room complete with open hearth fire and one's select Kentucky bourbon and seven course mean coming soon. Took true grit. I guess ya just had to be there to really know. 73 Robert W4RL Phil LaMarche wrote: __ 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 Help: http://mailman.qth.net/mmfaq.html Post: mailto:AMRadio@mailman.qth.net To unsubscribe, send an email to [EMAIL PROTECTED] with the word unsubscribe in the message body.
[AMRadio] Whatever Happened to Channel 1 ?
http://www.tech-notes.tv/History&Trivia/Channel%20One/Channel_1.htm __ 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 Help: http://mailman.qth.net/mmfaq.html Post: mailto:AMRadio@mailman.qth.net To unsubscribe, send an email to [EMAIL PROTECTED] with the word unsubscribe in the message body.
Re: [AMRadio] Ice Storm
Bob, I'll make you a real deal. You send me yall's ice, I'll send you our HurricanesOK? Hope all of your sky hooks put themselves back into pre-iced forms soon...really. I do know where there is lots of hot air, but discussing very recent political debates on TV is certainly not proper on this forum. 73 es bst of luck with ur antennas. Robert W4RL Pensacola Florida Bob Bruno - K2KI wrote: Hey all, This is pointed mostly to the New England folks who are getting hit hard with Freezing rain. I just came from outside where I had to "beat" my wire antennas to knock off the better that 1/4" of ice that has accumulated over the past hour. My TH6DXX is also getting hammered but I can't get to it. :-( Go out and knock the ice off before the ice "Knocks-off" your antennas. Good luck es 73... Bob de k2ki __ 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 Help: http://mailman.qth.net/mmfaq.html Post: mailto:AMRadio@mailman.qth.net To unsubscribe, send an email to [EMAIL PROTECTED] with the word unsubscribe in the message body. __ 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 Help: http://mailman.qth.net/mmfaq.html Post: mailto:AMRadio@mailman.qth.net To unsubscribe, send an email to [EMAIL PROTECTED] with the word unsubscribe in the message body.
Re: [AMRadio] Crystal Mic Elements
And as usual, we hams have always come up with a back channel / back door of ways to make things work cheaper and as good at least and often times better. It's the spirit of our fraternity from our beginning, isn't it. I personally hated it when Astatic pulled the D-104 crystal element plug for us, but we will survive with all the fellas trying to see what goes with the 'other' elements now on the market with which they experiment.I have two JT-30's but am embarrassed to say that I have never put them on the air. Wish me luck with my Audio-Technica ATR30 30 dollar venture. It certainly is built very well and has great looks. I will wire it up soon. 73 Robert W4RL Geoff/W5OMR wrote: Robert Lawson wrote: Geoff, Yep, "we" did go through that a few years ago at length, When I said "we", I was referring to John/BXO and I (as in replying to his message). John, Otis, and someone else, forget now who it was... Steve/K5LTK, perhaps, ordered some D-104 cartridges. In fact, I think they were the JT-30 replacement crystal cartridges, which have a very similar sound to them, if not a bit 'richer'. With the right amount of EQ, any microphone can be made to sound -at least- acceptable on the air. John, in particular, came up with an RC network, incorporating some inverse feed-back on a 12AX7 mic preamp that flattens out the audio response on most any crystal element mic (like a D-104 or JT-30, etc...) http://www.qsl.net/wa5bxo/xtal-mic-eq.gif __ Our Main Website: http://www.amfone.net AMRadio mailing list List Rules (must read!): http://w5ami.net/amradiofaq.html List Home: http://mailman.qth.net/mailman/listinfo/amradio Help: http://mailman.qth.net/mmfaq.html Post: mailto:AMRadio@mailman.qth.net To unsubscribe, send an email to [EMAIL PROTECTED] with the word unsubscribe in the message body.
Re: [AMRadio] Crystal Mic Elements
Geoff, Yep, "we" did go through that a few years ago at length, but it seems there are some "'new' to D-104 crystal element replacement" ham radio fraternity members joining in such queries to our aging AM affectionatos with patient answers and suggestions. Don't know about Otis. Would not want an old stock one anyway now. Things just change in this world, just like us physically. Regards and Merry Christmas to you and yours. Robert W4RL PS, Bob W1PE was there not an article in QST some time back that featured a homemade microphone with a 'cheap' element? I'll have to go and find it. Of note to all, I purchased an Audio-Technica ATR30 from J&R Music World Computer World for 30 dollars shipped that I am matching to my Icom 756 Pro 3 and then to my BA gear transmitters. More than half the fun in my ham radio hobby is "tho'in a rock into the woods and see what moves" with my radio experimentations. Keeps the 'what if' ham radio energy flowing in this old timer. HI Geoff/W5OMR wrote: John Coleman wrote: Does anyone know if someone is making and selling the cartridges for the D104. I thought we went thought all that, a few years ago, and Otis bought a few (several?) Crystal Element cartridges. Does he have any left? Time to go visit the Ancient One, anyway... __ Our Main Website: http://www.amfone.net AMRadio mailing list List Rules (must read!): http://w5ami.net/amradiofaq.html List Home: http://mailman.qth.net/mailman/listinfo/amradio Help: http://mailman.qth.net/mmfaq.html Post: mailto:AMRadio@mailman.qth.net To unsubscribe, send an email to [EMAIL PROTECTED] with the word unsubscribe in the message body.
Re: [AMRadio] Crystal Mic Elements
John, as far I know Astatic has not manufactured them in several years. There are though some fellas who have replaced the 104 crystal or ceramic element with a wide variety of elements ranging for Radio Shack, those supplies by Mouser Electronics, and Heil microphone HC-4/5 elements with appropriate impedance transformations/preamp's I think with Heil. I remember a contact on AM with a ham who was using a 3 dollar crystal element from Mouser. Hope this helps. 73 es Merry Christmas Robert W4RL John Coleman wrote: Does anyone know if someone is making and selling the cartridges for the D104. John, WA5BXO __ Our Main Website: http://www.amfone.net AMRadio mailing list List Rules (must read!): http://w5ami.net/amradiofaq.html List Home: http://mailman.qth.net/mailman/listinfo/amradio Help: http://mailman.qth.net/mmfaq.html Post: mailto:AMRadio@mailman.qth.net To unsubscribe, send an email to [EMAIL PROTECTED] with the word unsubscribe in the message body. __ Our Main Website: http://www.amfone.net AMRadio mailing list List Rules (must read!): http://w5ami.net/amradiofaq.html List Home: http://mailman.qth.net/mailman/listinfo/amradio Help: http://mailman.qth.net/mmfaq.html Post: mailto:AMRadio@mailman.qth.net To unsubscribe, send an email to [EMAIL PROTECTED] with the word unsubscribe in the message body.
Re: [AMRadio] Ham Radio Humor
Same here after 37 years of 'bliss'. I do wonder why 30 to 40 years ago they said "yes" back to us in the heat of the moment? I think now the 'heat' in them was a result from when they looked down upon us on one knee, with the 'ring' extended out and with that silly puppy dog look all over our faces. They don't forget that feeling of empowerment, do they. I think us guys types were the last ones who plopped down from the trees so many eons agoand they were waiting for 'us'. HI Just jesting of course..I think. Maybe they really do come from Venus, and us types from Mars. I will say this though, never trust a man who has no hobbies as he did not come from Mars. Robert W4RL Jim Wilhite wrote: No warranty,express or implied. Jim/W5JO Probably list it as Used, As Is, No Returns. Most wives probably would list us as Defective and Please, No Returns Pete, wa2cwa __ Our Main Website: http://www.amfone.net AMRadio mailing list List Rules (must read!): http://w5ami.net/amradiofaq.html List Home: http://mailman.qth.net/mailman/listinfo/amradio Help: http://mailman.qth.net/mmfaq.html Post: mailto:AMRadio@mailman.qth.net To unsubscribe, send an email to [EMAIL PROTECTED] with the word unsubscribe in the message body. __ Our Main Website: http://www.amfone.net AMRadio mailing list List Rules (must read!): http://w5ami.net/amradiofaq.html List Home: http://mailman.qth.net/mailman/listinfo/amradio Help: http://mailman.qth.net/mmfaq.html Post: mailto:AMRadio@mailman.qth.net To unsubscribe, send an email to [EMAIL PROTECTED] with the word unsubscribe in the message body.
[AMRadio] Just a thought for laughter and memory
I would think that most of us ain't no more spring chicken (rosters) anymore, so I though I would ask this in light of some of the serious exchanges that I've read/deleted over the AM band plan ala IRAU/ARRL recently. Question: What was your favorite April QST April Fool's article, or one that could have qualified? I remember from years past "The Vertical Beer Can Special" and also the ham who wrote the article on the compact antenna mounted atop the roof of his high rise New York apartment building with the radiating element being a red light bulb with comments on all those he contacted on the bands using the antenna aks dummy load. Of personal note, I remember years ago when we were having a big family/friend cookout in my backyard with all the young family/children energies going on, I tried to assemble a beer can vertical or at least get all the element parts collected. You can imagine the rest of the story with all the other young non-ham fathers attempting to assist me in advice and physical efforts. Did we succeed ? Well I'll say this. We did get the antenna high enough to resonate on 6 meters then we just kind of lost interest in the vertical extension element assembly for some reason as each can was becoming more difficult to 'solder' to the next, :-) then all of us going back to play with the kids and eat more hamburgers and watermelon even though we had plenty of aluminum raw materials left over to probably make a 160 meter vertical. Remember those times? Have happy thoughts this coming month with you families as they are (the years) each numbered. Merry Christmas Robert W4RL Remember, our hobby is not our life, it's just a hobby to help us extend our life. __ Our Main Website: http://www.amfone.net AMRadio mailing list List Rules (must read!): http://w5ami.net/amradiofaq.html List Home: http://mailman.qth.net/mailman/listinfo/amradio Help: http://mailman.qth.net/mmfaq.html Post: mailto:AMRadio@mailman.qth.net To unsubscribe, send an email to [EMAIL PROTECTED] with the word unsubscribe in the message body.
Re: [AMRadio] Re: [Boatanchors] Fw: Giving Thanks
Yes, and to all those who love us dearly who put up with our idiosyncrasies in our ol'silver back age, which is also laced more often than not with our ham radio (mis)adventure irrational behavioral habits. God bless them all. And give genuine thankful time to all of them tomorrow, totally from your heart being head of your household and responsible for them all. Fall asleep in your easy chair after your feast, let the women chatter in the background all at the same time enjoying the love of them all together, have no complaints when you grandchild crawls upon you and looks into your hairy ears and noses, then falling sound asleep upon your belly during the college football game on TV or the older ones playing with video games or outside fooling around with your tools, coin and stamp collection and such. Play your traditional part in this world. One of whom they all will remember for being the real loving you and not necessarily the ham radio operator. Savor the day both in mind, heart and spirit, but also in the giving that they have given to you all these years. Sometimes, we just need to step back and view all that is of and from us, and give back to them, again and againand again every day. When we are gone, we only exist in the minds of those who loved and appreciated us. Good thoughts to all this evening. Robert W4RL Pensacola FL Geoff/W5OMR wrote: rbethman wrote: Paid for in sweat and blood by the 200+ years of U. S. Military. Bob - N0DGN - Fourth Generation U.S. Military Retired - Sr. NCO You are welcome! What am I thankful for? I am thankful for "Today". Today (G.Edmonson) Today, I was able to wake up, walk, talk and bitch about things I can not change. Today, I am too blessed to be stressed. Everyday of Freedom, is a good day to Thank a Veteran. Happy Thanksgiving, y'all. __ Our Main Website: http://www.amfone.net AMRadio mailing list List Rules (must read!): http://w5ami.net/amradiofaq.html List Home: http://mailman.qth.net/mailman/listinfo/amradio Help: http://mailman.qth.net/mmfaq.html Post: mailto:AMRadio@mailman.qth.net To unsubscribe, send an email to [EMAIL PROTECTED] with the word unsubscribe in the message body.
Re: [AMRadio] Best Heathkit AM Transmitter
On the subject of these brands of 100 watt transmitters, is there a website of such that covers the history of these transmitters (Gonset, Johnson, and maybe others I don't know of) in use within Civil Defense? tnx es 73 de robert w4rl pensacola fl __ Our Main Website: http://www.amfone.net AMRadio mailing list List Rules (must read!): http://w5ami.net/amradiofaq.html List Home: http://mailman.qth.net/mailman/listinfo/amradio Help: http://mailman.qth.net/mmfaq.html Post: mailto:AMRadio@mailman.qth.net To unsubscribe, send an email to [EMAIL PROTECTED] with the word unsubscribe in the message body.
[AMRadio] FLY OUR NATION'S FLAG TODAY
Subject says it all __ AMRadio mailing list List Rules (must read!): http://w5ami.net/amradiofaq.html List Home: http://mailman.qth.net/mailman/listinfo/amradio Help: http://mailman.qth.net/mmfaq.html Post: mailto:AMRadio@mailman.qth.net To unsubscribe, send an email to [EMAIL PROTECTED] with the word unsubscribe in the message body.
Re: [AMRadio] AM - characteristics
Donald enjoyed your post about broadcasting with the DX-35 when in college. Since the Statute of Limitations has expired for most of us on such activities, I wonder how many of us did the same thing in our younger years. Heck, I know I did it in hight school with a buddy of mine, and then with my daughter when she was 8, now in her 30's. Whew, were we on the cutting edge back then HI. And our mantra was: Coverage, coverage, coverage! What memories you had me remember. Anyone else do the "Cutting Edge" in the AM bands? 73 Robert W4RL Disclaimer/confession: Riley, please have compassion on this old man with his prison sentence, my grandchildren need shoes. Donald Sanders wrote: I have been running controlled carrier since the first DX35 in about 1956 and now with the DX60B. In all those years I have never had a station complain about non-quieting between words or thoughts. I have been told they noticed the s-meter kicking a bit or signal seeming to increase with talking. I have modified the voice range on all those i operated to have a bit more bandpass and have been told that with the D-104 I have very natural sounding audio. In College I operated a DX 35 modified to 1500 KHz as a carriercurrent dorm broadcast transmitter and with a little mod to the modulator we had very good sounding audio and never a complaint about distortion, hum, audio characteristics and most enjoyed the music we played though not all enjoyed the selections. I believe in this day of high cost iron, that properly operated carrier control modulation into a amplifier is cost effective and functional. My SB220 likes the DX60B output and I get good results. All that said, it is necessary and imperative for the user to have and use the test equipment a to assure clean output and proper setup of the transmitter and amplifier. If someone does not know what to have or how to use it then he/she should seek the advice of the many experienced AM operators to set up the equipment. Healthfully yours, Don W4BWS - Original Message - From: "VJB" <[EMAIL PROTECTED]> To: Sent: Friday, April 06, 2007 3:58 AM Subject: [AMRadio] AM - characteristics Don K4KYV said -- Controlled carrier AM reduces the duty cycle demand on the amplifier. Of course this is true, but attention needs to be paid to the loss of carrier's value as part of the wholesome AM experience. (SNIP) Reducing the carrier often shortchanges the listener, and therefore is not recommended. Paul/VJB Food fight? Enjoy some healthy debate in the Yahoo! Answers Food & Drink Q&A. http://answers.yahoo.com/dir/?link=list&sid=396545367 __ AMRadio mailing list List Rules (must read!): http://w5ami.net/amradiofaq.html List Home: http://mailman.qth.net/mailman/listinfo/amradio Partner Website: http://www.amfone.net Help: http://mailman.qth.net/mmfaq.html Post: mailto:AMRadio@mailman.qth.net To unsubscribe, send an email to [EMAIL PROTECTED] with the word unsubscribe in the message body. __ AMRadio mailing list List Rules (must read!): http://w5ami.net/amradiofaq.html List Home: http://mailman.qth.net/mailman/listinfo/amradio Partner Website: http://www.amfone.net Help: http://mailman.qth.net/mmfaq.html Post: mailto:AMRadio@mailman.qth.net To unsubscribe, send an email to [EMAIL PROTECTED] with the word unsubscribe in the message body. __ AMRadio mailing list List Rules (must read!): http://w5ami.net/amradiofaq.html List Home: http://mailman.qth.net/mailman/listinfo/amradio Partner Website: http://www.amfone.net Help: http://mailman.qth.net/mmfaq.html Post: mailto:AMRadio@mailman.qth.net To unsubscribe, send an email to [EMAIL PROTECTED] with the word unsubscribe in the message body.
[AMRadio] Re: SRR-13 (RCA) Receiver
Thanks to those who gave me advice. Of note, the ol' gal was plopped in the back of a pickup truck bed at a tail gater this past Sat in Florida Town Fl (near Pensacola). I have no need for it, but if anyone is interested contact me direct. Think he's take 50 for it at; least that is what he told me after I said "naw, I don't need one, but thanks" Robert Robert Lawson wrote: Anyone know of the fair value for one that works? It comes with a matching speaker and AC cable. All knobs were original and seemed to turn appropriately. Would not want to change out a tube in one though. Thanks, Robert W4RL Pensacola Florida
[AMRadio] SRR-13 (RCA) Receiver
Anyone know of the fair value for one that works? It comes with a matching speaker and AC cable. All knobs were original and seemed to turn appropriately. Would not want to change out a tube in one though. Thanks, Robert W4RL Pensacola Florida
[AMRadio] NNNN
Fellows, Where does the text "" originate (radio history) in text messages below the "signature" line? I see used sometimes, depending on the particular NWS forecaster, with the National Weather Service text messages about active tropical storms/hurricanes (which I might add, seem to be frequenting my area lately HI). Also there is sometimes the "$$" being used along with the "" Just wondering. Regards, Robert WPE4FGR W4RL Pensacola Florida
Re: [AMRadio] Scopes
Yaesu 100 or 101 Heathkit HO-10 if in good shape. Watch out for those heath hv transformers. They work on the edge of their limits. 73 Robert W4RL RICHARD W GILLESPIE wrote: I would like to get a good but not too expensive scope to monitor modulation on my Valiant and Ranger. Any suggestions would be appreciated. Dick/K5DIC _ Express yourself instantly with MSN Messenger! Download today - it's FREE! http://messenger.msn.click-url.com/go/onm00200471ave/direct/01/ __ AMRadio mailing list Home: http://mailman.qth.net/mailman/listinfo/amradio Help: http://mailman.qth.net/mmfaq.html Post: mailto:AMRadio@mailman.qth.net
Re: [AMRadio] RE: new home brew receiver progress
Bret, I think what you are doing is GREAT! Really enjoy reading all of your email notes in the theory, design, construction (and hopefully not too much trouble shooting on the bench HI). Keep up the good work. I look forwards in reading your post, as it is actually a tutorial for us all. Of note, I am not an engineer; I am a retired mental health psychologist. Don't let the "think they know it all, but their wives know better" types change your course in this project as this retarded shrink wishes to be on for the bus ride in the back seat enjoying the view with you driving. HI bst 73 de Robert WPE4FGR W4RL Pensacola Florida. Brett Gazdzinski wrote: > I am making good progress on the new receiver. > I have tried lots of circuits for the local oscillator, > and have come up with a good circuit. > Its very hard to build a good stable oscillator without > complex coils with feedback windings. > > I found a circuit in the Bill Orr handbook, out of the C-W man's receiver > that uses one untapped coil, one side goes to ground, a variable cap across > the coil to ground, an RF choke in the cathode, and a pair of caps > in series from the grid to ground, the center (between the caps) > goes to the cathode for feedback. > > I tried various coil types, various size ceramic slug tuned forms > with various gauge wire on them, pre made phenolic slug tuned forms > that I unwound some wire from till I got to the correct frequency, > large ceramic coil forms, and B+W coil stock. > > The best results are from the B+W coil stock, a much higher > Q coil, gives less harmonics out. > > I changed the design some, instead of using the 6U8, I used a 6C4, > since the ARRL handbook says a separate oscillator tube results > in a more stable receiver. > 2nd harmonics are down more than 45 DB with the B+W coil, much less with > some of the others, some generate harmonics out to 60 Mhz > or so! > The oscillator keeps working down to as little as 10 volts on the plate, > and I may run it at 75 volts. > I just tack parts together on the workbench, hooked up to > the old heathkit variable high voltage power supply, > so the finished product should actually work better, with > short wires and a sensible layout. > > To switch between 80 and 40 meters, all I need to do is > short part of the coil to ground. > One end is always connected to ground, and a tap to > ground will give 40 meters, I tested it, and it works well, > no drop in output, no increase in harmonics. > I plan on putting the coil and switch in a small box to isolate > it. > > I think the mixer tube will be a 6AH6, and I will try to inject > the osc into the cathode. > If that does not work well, I can inject it into the grid. > The ARRL 1967 handbook has lots of good info about > this sort of mixer stuff on page 99. > > I think the IF amps will be 2 or 3 6BZ6 tubes. > The same handbook gives circuits and values for various tubes. > > I have a circuit for the low distortion detector, and the S meter > amp, but have to change from octal tubes to 7 or 9 pin > tubes, from a 6SN7 for the S meter circuit, and the detector needs > a diode, and a triode, like the 6SN7. > > I may be able to drive the S meter directly with an IF > amp plate current, like the Gonset G76 does. > I found a nice S meter from an old heathkit receiver > on E bay a while ago. It can be lit up from the back, a nice touch, > and its only an S meter, not out of a transceiver with plate current > and so on.. > > I have the chassis, the side supports and front panel, > the IF transformers, the digital frequency display, the tuning cap > and various reduction drives, nice ceramic tube sockets, the antenna > tuning coil forms, loads of VR tubes, and all the other tubes. > > The Kiwi filters have not arrived yet, and I may need to buy a > power transformer, to give 200 volts out with choke input, > and filament windings. > > Its really getting to be ham radio season, with building and > operating, and I am having FUN! > > Brett > N2DTS > > > ___ > AMRadio mailing list > AMRadio@mailman.qth.net > http://mailman.qth.net/mailman/listinfo/amradio
