RE: [AMRadio] New Guy to AM
From Bow, W5RFR Subject: RE: [AMRadio] New Guy to AM Thanks Jim. How come I couldn't find that PDF on the AM Window site? I must not have the secret decoder ring yet! LOL I would love to try a QSO on AM. 7PM is a bit to early for my to play Radio on a Friday night! I am a full time collage student at night, work full time during the day, and I'm married.. So there is that Honey doo list! ;) Reply by Jim, WD5JKO, I couldn't find it either. I had to Google for it. I'm sure the link is somewhere buried at AMFONE, but I'm like you, I could not find it either. So Bow when do you sleep? Sometimes it's is tough to play AM at that busy time. If you can escape into the ham shack more then 30 minutes, and get on the air, you are greeted with an in the face confrontation about, your getting into the VCR! ;-( Regards, Jim __ 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.
RE: [AMRadio] New Guy to AM
Thanks Jim. How come I couldn't find that PDF on the AM Window site? I must not have the secret decoder ring yet! LOL I would love to try a QSO on AM. 7PM is a bit to early for my to play Radio on a Friday night! I am a full time collage student at night, work full time during the day, and I'm married.. So there is that Honey doo list! ;) Maybe later? Bow W5EFR -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Jim Candela Sent: Thursday, March 22, 2007 20:19 To: 'Discussion of AM Radio in the Amateur Service' Subject: RE: [AMRadio] New Guy to AM Bow, At the following link is a schematic of an AM rig that uses similar tubes. You could replace the 6AG7 with a 6V6 or 6K6, and replace the two 6LF6's with four 6DQ6's. This rig is good for 25 watts AM, and doesn't need a modulation transformer. The downside is the Class A series modulator, and the need for a +1100v B+. It sure is simple though, and should be easy to home brew. http://www.amwindow.org/tech/pdf/eckfinal2.pdf As for 30-40 watts AM between Houston, and Round Rock, you should be 5-9 here in the early evening until the band lengthens out. My main rig right now is a Gonset G76 that runs 55 watts AM, and I get out really well with it using an 80 FW loop up about 18'. This is a 'cloud burner' antenna that does really well out to about a 300 mile radius. This is perfect to talk to Houston. The trick with the Icom 718 will be to achieve full modulation rather than maximum carrier, and squishy modulation from overload or ALC popping. You are better at 25 watts carrier instead of 40. Maybe we can make a schedule for tomorrow evening at 7'ish? Jim JKO -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Bow Sent: Friday, March 23, 2007 2:30 AM To: 'Discussion of AM Radio in the Amateur Service' Subject: RE: [AMRadio] New Guy to AM Hey Jim! I live on the northwest side of Houston, TX and I am on 75M, but only tried SSB so far, I don't think my screaming Icom IC-718 will do much with it's 30-40 watts of AM. My current tube stash consists of: 2- 815 2- 807W 3- 12SK7 1- 12A6 1- KT88 2- 6DQ6 3- 6L6 3- 6K6 1- EL34 1- 6V6 and several dual triode Preamp tubes... Is there any hope? LOL Bow W5EFR -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Jim Candela Sent: Thursday, March 22, 2007 19:23 To: 'Discussion of AM Radio in the Amateur Service' Subject: RE: [AMRadio] New Guy to AM Bow, Welcome to the group! I hope this group provides you with knowledge and camaraderie from a bunch of fine folks who have a passion for AM. So where do you live? Do you work 75 meters? I don't have any experience with the 815, but I have heard that this is one of those tubes that suffers from imperfect vacuum seals, and many NOS 815's are bad now even though unused. Maybe some others can chime in on that comment. You can make a mighty fine AM rig out of three 807's, (1 RF final, and two P-P modulators) and when conservatory run will provide 15-30 watts of high quality AM. For more power something like a Heathkit SB-220 can transform this kind of rig to full legal AM power when the peaks extend up to ~ 1500 watts PEP with a resting carrier level at around 350 watts. Since you identify with the guitar amp circuit, this rig combo is like a Fender Champ acoustically coupled to a big solid state PA amplifier. Regards, Jim WD5JKO __ 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. -- No virus found in this incoming message. Checked by AVG Free Edition. Version: 7.5.446 / Virus Database: 268.18.16/729 - Release Date: 3/21/2007 07:52 -- No virus found in this outgoing message. Checked by AVG Free Edition. Version: 7.5.446 / Virus Database: 268.18.16/729 - Release Date: 3/21/2007 07:52 __ 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. -- No virus found in this incoming message. Checked by AVG Free Edition. Version: 7.5.446 / Virus Database: 268.18.17/730 - Release Date: 3/22/2007 7:44 AM __ AMRadio mailing list List Rules (must read!): http://w5ami.net/amradiofaq.html List Home: http://mailman.qth.net/mailman/listinfo/amradio Partner Website: http
RE: [AMRadio] New Guy to AM
Bow, Welcome to the group! I hope this group provides you with knowledge and camaraderie from a bunch of fine folks who have a passion for AM. So where do you live? Do you work 75 meters? I don't have any experience with the 815, but I have heard that this is one of those tubes that suffers from imperfect vacuum seals, and many NOS 815's are bad now even though unused. Maybe some others can chime in on that comment. You can make a mighty fine AM rig out of three 807's, (1 RF final, and two P-P modulators) and when conservatory run will provide 15-30 watts of high quality AM. For more power something like a Heathkit SB-220 can transform this kind of rig to full legal AM power when the peaks extend up to ~ 1500 watts PEP with a resting carrier level at around 350 watts. Since you identify with the guitar amp circuit, this rig combo is like a Fender Champ acoustically coupled to a big solid state PA amplifier. Regards, Jim WD5JKO __ 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.
RE: [AMRadio] New Guy to AM
Hey Jim! I live on the northwest side of Houston, TX and I am on 75M, but only tried SSB so far, I don't think my screaming Icom IC-718 will do much with it's 30-40 watts of AM. My current tube stash consists of: 2- 815 2- 807W 3- 12SK7 1- 12A6 1- KT88 2- 6DQ6 3- 6L6 3- 6K6 1- EL34 1- 6V6 and several dual triode Preamp tubes... Is there any hope? LOL Bow W5EFR -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Jim Candela Sent: Thursday, March 22, 2007 19:23 To: 'Discussion of AM Radio in the Amateur Service' Subject: RE: [AMRadio] New Guy to AM Bow, Welcome to the group! I hope this group provides you with knowledge and camaraderie from a bunch of fine folks who have a passion for AM. So where do you live? Do you work 75 meters? I don't have any experience with the 815, but I have heard that this is one of those tubes that suffers from imperfect vacuum seals, and many NOS 815's are bad now even though unused. Maybe some others can chime in on that comment. You can make a mighty fine AM rig out of three 807's, (1 RF final, and two P-P modulators) and when conservatory run will provide 15-30 watts of high quality AM. For more power something like a Heathkit SB-220 can transform this kind of rig to full legal AM power when the peaks extend up to ~ 1500 watts PEP with a resting carrier level at around 350 watts. Since you identify with the guitar amp circuit, this rig combo is like a Fender Champ acoustically coupled to a big solid state PA amplifier. Regards, Jim WD5JKO __ 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. -- No virus found in this incoming message. Checked by AVG Free Edition. Version: 7.5.446 / Virus Database: 268.18.16/729 - Release Date: 3/21/2007 07:52 -- No virus found in this outgoing message. Checked by AVG Free Edition. Version: 7.5.446 / Virus Database: 268.18.16/729 - Release Date: 3/21/2007 07:52 __ 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.
Re: [AMRadio] New Guy to AM
Hi Bow: Welcome to the list. You will find a large group here that will provide you with support and assistance as time goes by with your needs, be it parts or just advice. Your location is perfect to attend the gathering at Belton which is about 3 weeks away. It is a great place for parts including transformers, chokes, tubes and things needed to home brew a transmitter. It is also a great place for you to find some sort of amplifier should you choose to do that. There is always a large gathering of folks who prefer AM to other modes, which will welcome you into their midst. Try to make that one if possible. They will be identified by the banner of QCWA Chapter 207. In the meantime, put anything you have on the air. Propagation is good right now, except for the static generated by thunderstorms. Next fall and winter will be great. Tune around 3.880, 3.900 to find people in your area. There are several. Hope to work you soon. 73 Jim W5JO Hello all, I'm a new guy to the AM Radio list, my Name is Scott, my friends call me Bow (like bow and arrow). I am located on the northwest side Houston, TX and I like to homebrew. I hope to catch you on the bands. Bow W5EFR __ 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.
RE: [AMRadio] New Guy to AM
Bow, At the following link is a schematic of an AM rig that uses similar tubes. You could replace the 6AG7 with a 6V6 or 6K6, and replace the two 6LF6's with four 6DQ6's. This rig is good for 25 watts AM, and doesn't need a modulation transformer. The downside is the Class A series modulator, and the need for a +1100v B+. It sure is simple though, and should be easy to home brew. http://www.amwindow.org/tech/pdf/eckfinal2.pdf As for 30-40 watts AM between Houston, and Round Rock, you should be 5-9 here in the early evening until the band lengthens out. My main rig right now is a Gonset G76 that runs 55 watts AM, and I get out really well with it using an 80 FW loop up about 18'. This is a 'cloud burner' antenna that does really well out to about a 300 mile radius. This is perfect to talk to Houston. The trick with the Icom 718 will be to achieve full modulation rather than maximum carrier, and squishy modulation from overload or ALC popping. You are better at 25 watts carrier instead of 40. Maybe we can make a schedule for tomorrow evening at 7'ish? Jim JKO -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Bow Sent: Friday, March 23, 2007 2:30 AM To: 'Discussion of AM Radio in the Amateur Service' Subject: RE: [AMRadio] New Guy to AM Hey Jim! I live on the northwest side of Houston, TX and I am on 75M, but only tried SSB so far, I don't think my screaming Icom IC-718 will do much with it's 30-40 watts of AM. My current tube stash consists of: 2- 815 2- 807W 3- 12SK7 1- 12A6 1- KT88 2- 6DQ6 3- 6L6 3- 6K6 1- EL34 1- 6V6 and several dual triode Preamp tubes... Is there any hope? LOL Bow W5EFR -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Jim Candela Sent: Thursday, March 22, 2007 19:23 To: 'Discussion of AM Radio in the Amateur Service' Subject: RE: [AMRadio] New Guy to AM Bow, Welcome to the group! I hope this group provides you with knowledge and camaraderie from a bunch of fine folks who have a passion for AM. So where do you live? Do you work 75 meters? I don't have any experience with the 815, but I have heard that this is one of those tubes that suffers from imperfect vacuum seals, and many NOS 815's are bad now even though unused. Maybe some others can chime in on that comment. You can make a mighty fine AM rig out of three 807's, (1 RF final, and two P-P modulators) and when conservatory run will provide 15-30 watts of high quality AM. For more power something like a Heathkit SB-220 can transform this kind of rig to full legal AM power when the peaks extend up to ~ 1500 watts PEP with a resting carrier level at around 350 watts. Since you identify with the guitar amp circuit, this rig combo is like a Fender Champ acoustically coupled to a big solid state PA amplifier. Regards, Jim WD5JKO __ 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. -- No virus found in this incoming message. Checked by AVG Free Edition. Version: 7.5.446 / Virus Database: 268.18.16/729 - Release Date: 3/21/2007 07:52 -- No virus found in this outgoing message. Checked by AVG Free Edition. Version: 7.5.446 / Virus Database: 268.18.16/729 - Release Date: 3/21/2007 07:52 __ 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. -- No virus found in this incoming message. Checked by AVG Free Edition. Version: 7.5.446 / Virus Database: 268.18.17/730 - Release Date: 3/22/2007 7:44 AM __ 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.
Re: [AMRadio] New Guy to AM
Hi Bow - please be welcome, and its so good to have another AMer to ragchew with - digitally or analogly... ;} I like to remind folks that many legacy broadcast transmitters are hitting the landfills and scrap-yrads with sickening regularity - if you have the room and the wherewithall - please consider 'adopting' one of the old AM boxes - they come in all sizes and flavors - 250 - 500 - 1KW, and many can be had for the asking. Some have a cost, depending on the availablility and rarity, but we are probably the last folks who give a damn about preserving our historic and rich broadasting history. Ok, git off the damn soapbox already, John ;} Hope to work you soon on 75 (3870 - 80 - 90 kc) from Carson City, NV. Best 73! Cheers John KB6SCO DM09fg __ 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.
RE: [AMRadio] New Guy to AM
Thanks John... How does someone find these old AM BC transmitters? Bow W5EFR -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of John Lawson Sent: Thursday, March 22, 2007 20:31 To: Discussion of AM Radio in the Amateur Service Subject: Re: [AMRadio] New Guy to AM Hi Bow - please be welcome, and its so good to have another AMer to ragchew with - digitally or analogly... ;} I like to remind folks that many legacy broadcast transmitters are hitting the landfills and scrap-yrads with sickening regularity - if you have the room and the wherewithall - please consider 'adopting' one of the old AM boxes - they come in all sizes and flavors - 250 - 500 - 1KW, and many can be had for the asking. Some have a cost, depending on the availablility and rarity, but we are probably the last folks who give a damn about preserving our historic and rich broadasting history. Ok, git off the damn soapbox already, John ;} Hope to work you soon on 75 (3870 - 80 - 90 kc) from Carson City, NV. Best 73! Cheers John KB6SCO DM09fg __ 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. -- No virus found in this incoming message. Checked by AVG Free Edition. Version: 7.5.446 / Virus Database: 268.18.16/729 - Release Date: 3/21/2007 07:52 -- No virus found in this outgoing message. Checked by AVG Free Edition. Version: 7.5.446 / Virus Database: 268.18.16/729 - Release Date: 3/21/2007 07:52 __ 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.
RE: [AMRadio] New Guy to AM
Hi Bow as with the rest of the group Welcome to the crazy world of AM...Would love to yak with you about Tube Amps for Audio. I am in the audio buz and love it. Also Belton Ham Fest is coming up really soon. All of us Amers get Together there.you will see us all mostly wearing the NOS Red T Shirts or the Tung Sol Navy T Shirts. We normally all go out to dinner For ribs at the OXBOW restaurant. Belton is twice a year and there you will find lots of AM Gear for sale. Look for a bunch of us on 3.890 every AM. Big AM swap net Saturday at 0800. Normally 20 or better guys. The 1st Wednesday of the month at 1930 on 3.880 you will find the Collins AM Net but all welcome. You will hear a bunch of Houston guys on.. Jimmy K5SOH and K5SEE are on a lot... Looking for you on AM... Very Best 73's Bob W1PE The Voice of Mesquite www.w1pe.com -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Jim Wilhite Sent: Thursday, March 22, 2007 9:10 PM To: Discussion of AM Radio in the Amateur Service Subject: Re: [AMRadio] New Guy to AM Hi Bow: Welcome to the list. You will find a large group here that will provide you with support and assistance as time goes by with your needs, be it parts or just advice. Your location is perfect to attend the gathering at Belton which is about 3 weeks away. It is a great place for parts including transformers, chokes, tubes and things needed to home brew a transmitter. It is also a great place for you to find some sort of amplifier should you choose to do that. There is always a large gathering of folks who prefer AM to other modes, which will welcome you into their midst. Try to make that one if possible. They will be identified by the banner of QCWA Chapter 207. In the meantime, put anything you have on the air. Propagation is good right now, except for the static generated by thunderstorms. Next fall and winter will be great. Tune around 3.880, 3.900 to find people in your area. There are several. Hope to work you soon. 73 Jim W5JO Hello all, I'm a new guy to the AM Radio list, my Name is Scott, my friends call me Bow (like bow and arrow). I am located on the northwest side Houston, TX and I like to homebrew. I hope to catch you on the bands. Bow W5EFR __ 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.
RE: [AMRadio] New Guy to AM
On Fri, 23 Mar 2007, Bow wrote: Thanks John... How does someone find these old AM BC transmitters? Here on The List is a good place to start - also they turn up on eBay - plus a lot of radio station engineers were/are hams, and if you can hook up with those guys in your local area, many of them are only too happy to have that Big Old Box out of thier buildings and hair, in that order. It takes a bit of patience - but with the Rush to Digital - a lot of analog gear is becoming obsolete. I'll forward a pic of my station privaetly to you - I am currently restoring an RCA BTA-1MX 1KW rig... uses a pair of 833As plate modulated by another pair - and the rest of the tubes are all 807s... except the rectifiers, of course... Cheers John KB6SCO DM09fg __ 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.
