Re: [AMRadio] 833 AM rig
What ever happen to Otis ? I can guess that by this time is may be a SK. I use to listen to him along with W4RKG on 75 meters in the 60's running some beautiful a.m. I recall that Otis was in Shreveport La. Ma he had such a sweet a.m. sound. I would listen to him along with a large group on 75 using a Allied span master reg. receiver that I build in 65. Great memories, wish a.m. could be like that again. Bob Carpenter KB4WEC bcarpenter_...@bellsouth.net _ From: amradio-boun...@mailman.qth.net [mailto:amradio-boun...@mailman.qth.net] On Behalf Of Jim Wilhite Sent: Sunday, February 08, 2009 4:48 PM To: Discussion of AM Radio in the Amateur Service Subject: Re: [AMRadio] 833 AM rig Maybe John/WA5BXO will read the messages soon. Otis/K5SWK built one like this some years back and it still plays over at De Queen, AR. Ken/KA5RHK still uses it. I would imagine John can tell us what Otis did. Jim/W5JO - Original Message - I would be interested myself. Mod-U-Lator, Mike(y) W3SLK - Original Message - Hello I like to build an AM transmitter with one tube 833A,any one have a circuit diagram... many thanks joe __ 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] 833 AM rig
Otis is alive, doesn't get on the air, lives in the far reaching Northern area of Houston, Tx. John Coleman, WA5BXO sees him from time to time. Lee, w0vt - Original Message - From: Bob Carpenter To: 'Discussion of AM Radio in the Amateur Service' Sent: Monday, February 09, 2009 8:03 AM Subject: Re: [AMRadio] 833 AM rig What ever happen to Otis ? I can guess that by this time is may be a SK. I use to listen to him along with W4RKG on 75 meters in the 60's running some beautiful a.m. I recall that Otis was in Shreveport La. Ma he had such a sweet a.m. sound. I would listen to him along with a large group on 75 using a Allied span master reg. receiver that I build in 65. Great memories, wish a.m. could be like that again. Bob Carpenter KB4WEC bcarpenter_...@bellsouth.net -- From: amradio-boun...@mailman.qth.net [mailto:amradio-boun...@mailman.qth.net] On Behalf Of Jim Wilhite Sent: Sunday, February 08, 2009 4:48 PM To: Discussion of AM Radio in the Amateur Service Subject: Re: [AMRadio] 833 AM rig Maybe John/WA5BXO will read the messages soon. Otis/K5SWK built one like this some years back and it still plays over at De Queen, AR. Ken/KA5RHK still uses it. I would imagine John can tell us what Otis did. Jim/W5JO - Original Message - I would be interested myself. Mod-U-Lator, Mike(y) W3SLK - Original Message - Hello I like to build an AM transmitter with one tube 833A,any one have a circuit diagram... many thanks joe -- __ 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] 833 AM rig
Lee, Thanks so much for the info on Otis. Like I said, he and a few other had a lot to do with my interest in ham radio. I was living in Ft. Walton Beach Fl. At the time, and they would really light up my old Allied receiver. I may try to get in contact with John WA5BXO and ask that he tell Otis that a 59 year old kid was still asking about him. Best 73, Bob Carpenter KB4WEC bcarpenter_...@bellsouth.net _ From: amradio-boun...@mailman.qth.net [mailto:amradio-boun...@mailman.qth.net] On Behalf Of LEE BAHR Sent: Monday, February 09, 2009 8:59 AM To: Discussion of AM Radio in the Amateur Service Subject: Re: [AMRadio] 833 AM rig Otis is alive, doesn't get on the air, lives in the far reaching Northern area of Houston, Tx. John Coleman, WA5BXO sees him from time to time. Lee, w0vt - Original Message - From: Bob mailto:bcarpenter_...@bellsouth.net Carpenter To: 'Discussion mailto:amradio@mailman.qth.net of AM Radio in the Amateur Service' Sent: Monday, February 09, 2009 8:03 AM Subject: Re: [AMRadio] 833 AM rig What ever happen to Otis ? I can guess that by this time is may be a SK. I use to listen to him along with W4RKG on 75 meters in the 60's running some beautiful a.m. I recall that Otis was in Shreveport La. Ma he had such a sweet a.m. sound. I would listen to him along with a large group on 75 using a Allied span master reg. receiver that I build in 65. Great memories, wish a.m. could be like that again. Bob Carpenter KB4WEC bcarpenter_...@bellsouth.net _ From: amradio-boun...@mailman.qth.net [mailto:amradio-boun...@mailman.qth.net] On Behalf Of Jim Wilhite Sent: Sunday, February 08, 2009 4:48 PM To: Discussion of AM Radio in the Amateur Service Subject: Re: [AMRadio] 833 AM rig Maybe John/WA5BXO will read the messages soon. Otis/K5SWK built one like this some years back and it still plays over at De Queen, AR. Ken/KA5RHK still uses it. I would imagine John can tell us what Otis did. Jim/W5JO - Original Message - I would be interested myself. Mod-U-Lator, Mike(y) W3SLK - Original Message - Hello I like to build an AM transmitter with one tube 833A,any one have a circuit diagram... many thanks joe _ __ 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] 833 AM rig
Bob, John reads this list. I am a bit surprised he hasn't said something thus far. But John has lots of work to do and a couple of teenagers to raise. He will be along sometime soon. Jim/W5JO - Thanks so much for the info on Otis. Like I said, he and a few other had a lot to do with my interest in ham radio. I was living in Ft. Walton Beach Fl. At the time, and they would really light up my old Allied receiver. I may try to get in contact with John WA5BXO and ask that he tell Otis that a 59 year old kid was still asking about him. Best 73, Bob Carpenter KB4WEC bcarpenter_...@bellsouth.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
[AMRadio] Cheap multimeter
Harbor Freight has their red digital multimeters on sale for $2.99. And I received a coupon by email from them that gets the meters for $1.99. http://www.harborfreightusa.com/usa/itemdisplay/displayItem.do?itemid=90899 Steve WD8DAS sbjohns...@aol.com http://www.wd8das.net/ - Radio is your best entertainment value. - __ 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] single 833
There's a fellow near me that built a single 833 modulated by a single 833, one of a class A bias-changing heising design. I gave him a big reactor for it. I can get details if anyone wants. 73, John K5PRO on the road from Oklahoma City this morning __ 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] 833 AM rig
OTIS had his 85th Birthday party on Saturday. All the guys BXO/ SEE and a lot of others had for him but you are correct he is not on the air. Something like the floor in the shack is not safe. From what we hear he is doing well..You are correct on the sweet sounding rig. Very Best 73's, Bob W1PE Mesquite,TX http://www.w1pe.com From: amradio-boun...@mailman.qth.net [mailto:amradio-boun...@mailman.qth.net] On Behalf Of LEE BAHR Sent: Monday, February 09, 2009 7:59 AM To: Discussion of AM Radio in the Amateur Service Subject: Re: [AMRadio] 833 AM rig Otis is alive, doesn't get on the air, lives in the far reaching Northern area of Houston, Tx. John Coleman, WA5BXO sees him from time to time. Lee, w0vt - Original Message - From: Bob Carpenter mailto:bcarpenter_...@bellsouth.net To: 'Discussion mailto:amradio@mailman.qth.net of AM Radio in the Amateur Service' Sent: Monday, February 09, 2009 8:03 AM Subject: Re: [AMRadio] 833 AM rig What ever happen to Otis ? I can guess that by this time is may be a SK. I use to listen to him along with W4RKG on 75 meters in the 60's running some beautiful a.m. I recall that Otis was in Shreveport La. Ma he had such a sweet a.m. sound. I would listen to him along with a large group on 75 using a Allied span master reg. receiver that I build in 65. Great memories, wish a.m. could be like that again. Bob Carpenter KB4WEC bcarpenter_...@bellsouth.net _ From: amradio-boun...@mailman.qth.net [mailto:amradio-boun...@mailman.qth.net] On Behalf Of Jim Wilhite Sent: Sunday, February 08, 2009 4:48 PM To: Discussion of AM Radio in the Amateur Service Subject: Re: [AMRadio] 833 AM rig Maybe John/WA5BXO will read the messages soon. Otis/K5SWK built one like this some years back and it still plays over at De Queen, AR. Ken/KA5RHK still uses it. I would imagine John can tell us what Otis did. Jim/W5JO - Original Message - I would be interested myself. Mod-U-Lator, Mike(y) W3SLK - Original Message - Hello I like to build an AM transmitter with one tube 833A,any one have a circuit diagram... many thanks joe _ __ Our Main Website: http://www.amfone.net AMRadio mailing list Searchable Archives: http://www.mail-archive.com/amra...@mailman.qth.ne t/ 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] 833 AM rig
Bob: BXO is your best bet. They are very close. John sees Otis a lot. John and his wife Vicki own/run a computer store in The Woodlands, Texas Lee, w0vt - Original Message - From: Bob Carpenter To: 'Discussion of AM Radio in the Amateur Service' Sent: Monday, February 09, 2009 8:28 AM Subject: Re: [AMRadio] 833 AM rig Lee, Thanks so much for the info on Otis. Like I said, he and a few other had a lot to do with my interest in ham radio. I was living in Ft. Walton Beach Fl. At the time, and they would really light up my old Allied receiver. I may try to get in contact with John WA5BXO and ask that he tell Otis that a 59 year old kid was still asking about him. Best 73, Bob Carpenter KB4WEC bcarpenter_...@bellsouth.net -- From: amradio-boun...@mailman.qth.net [mailto:amradio-boun...@mailman.qth.net] On Behalf Of LEE BAHR Sent: Monday, February 09, 2009 8:59 AM To: Discussion of AM Radio in the Amateur Service Subject: Re: [AMRadio] 833 AM rig Otis is alive, doesn't get on the air, lives in the far reaching Northern area of Houston, Tx. John Coleman, WA5BXO sees him from time to time. Lee, w0vt - Original Message - From: Bob Carpenter To: 'Discussion of AM Radio in the Amateur Service' Sent: Monday, February 09, 2009 8:03 AM Subject: Re: [AMRadio] 833 AM rig What ever happen to Otis ? I can guess that by this time is may be a SK. I use to listen to him along with W4RKG on 75 meters in the 60's running some beautiful a.m. I recall that Otis was in Shreveport La. Ma he had such a sweet a.m. sound. I would listen to him along with a large group on 75 using a Allied span master reg. receiver that I build in 65. Great memories, wish a.m. could be like that again. Bob Carpenter KB4WEC bcarpenter_...@bellsouth.net From: amradio-boun...@mailman.qth.net [mailto:amradio-boun...@mailman.qth.net] On Behalf Of Jim Wilhite Sent: Sunday, February 08, 2009 4:48 PM To: Discussion of AM Radio in the Amateur Service Subject: Re: [AMRadio] 833 AM rig Maybe John/WA5BXO will read the messages soon. Otis/K5SWK built one like this some years back and it still plays over at De Queen, AR. Ken/KA5RHK still uses it. I would imagine John can tell us what Otis did. Jim/W5JO - Original Message - I would be interested myself. Mod-U-Lator, Mike(y) W3SLK - Original Message - Hello I like to build an AM transmitter with one tube 833A,any one have a circuit diagram... many thanks joe __ 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] single 833
I always wanted a rig that uses the 833. It such a neat and different tube. I have a good supply of 810's so I figured a pair will modulate one nicely. I like the BTA-500/1MX's. As a matter of fact, I was supposed to be wheeling and dealing on a -500MX with Eric, WB4VVI (SK) before he went SK. Oh well. I like the prospects of the 810's and the single 833. It won't weigh near as much as one of those boxes. I have some nice black krinkle panels so a krinkle motif is in the cards. Mod-U-Lator, Mike(y) W3SLK - Original Message - From: John Lyles j...@losalamos.com To: amradio@mailman.qth.net Sent: Monday, February 09, 2009 9:39 AM Subject: [AMRadio] single 833 There's a fellow near me that built a single 833 modulated by a single 833, one of a class A bias-changing heising design. I gave him a big reactor for it. I can get details if anyone wants. 73, John K5PRO on the road from Oklahoma City this morning __ 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] single 833
I have an 833 that shows continuity on the filament...only test I can dothat I would trade for something interesting. No warranty beyond that the filament was good when it left here. It looks clean to look at it, not burned. On 2/9/09, Mike Sawyer w3...@verizon.net wrote: I always wanted a rig that uses the 833. It such a neat and different tube. I have a good supply of 810's so I figured a pair will modulate one nicely. I like the BTA-500/1MX's. As a matter of fact, I was supposed to be wheeling and dealing on a -500MX with Eric, WB4VVI (SK) before he went SK. Oh well. I like the prospects of the 810's and the single 833. It won't weigh near as much as one of those boxes. I have some nice black krinkle panels so a krinkle motif is in the cards. Mod-U-Lator, Mike(y) W3SLK - Original Message - From: John Lyles j...@losalamos.com To: amradio@mailman.qth.net Sent: Monday, February 09, 2009 9:39 AM Subject: [AMRadio] single 833 There's a fellow near me that built a single 833 modulated by a single 833, one of a class A bias-changing heising design. I gave him a big reactor for it. I can get details if anyone wants. 73, John K5PRO on the road from Oklahoma City this morning __ 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 -- Jim Isbell If you are not living on the edge, well then, you are just taking up too much space. __ 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] single 833
I have a brand new 833A RCA and several pulls. Please make an offer. David Knepper, W3ST/W3CRA Editor of the Collins Journal Collins Radio Association www.collinsra.com Join the CRA - Original Message - From: Jim Isbell, W5JAI To: Discussion of AM Radio in the Amateur Service Sent: Monday, February 09, 2009 4:36 PM Subject: Re: [AMRadio] single 833 I have an 833 that shows continuity on the filament...only test I can dothat I would trade for something interesting. No warranty beyond that the filament was good when it left here. It looks clean to look at it, not burned. On 2/9/09, Mike Sawyer w3...@verizon.net wrote: I always wanted a rig that uses the 833. It such a neat and different tube. I have a good supply of 810's so I figured a pair will modulate one nicely. I like the BTA-500/1MX's. As a matter of fact, I was supposed to be wheeling and dealing on a -500MX with Eric, WB4VVI (SK) before he went SK. Oh well. I like the prospects of the 810's and the single 833. It won't weigh near as much as one of those boxes. I have some nice black krinkle panels so a krinkle motif is in the cards. Mod-U-Lator, Mike(y) W3SLK - Original Message - From: John Lyles j...@losalamos.com To: amradio@mailman.qth.net Sent: Monday, February 09, 2009 9:39 AM Subject: [AMRadio] single 833 There's a fellow near me that built a single 833 modulated by a single 833, one of a class A bias-changing heising design. I gave him a big reactor for it. I can get details if anyone wants. 73, John K5PRO on the road from Oklahoma City this morning __ 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 -- Jim Isbell If you are not living on the edge, well then, you are just taking up too much space. -- __ 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] single 833
I built a transmitter with a single 833A modulated by a pair of 810s. I chose that combination of tubes because of their looks and also because they do not require any forced air cooling. I put windows in front of the tubes so one can see the tubes glow.What a beautiful sight. I used my own design based on ideas from many of the old handbooks, mostly the Editors and Engineers. Most of the information was not specific to an 833A but to triodes in general. The circuit was varied to fit the parts I had on hand and to the specifications of the 833A. I used a modulation transformer and reactor from a 1kw broadcast transmitter. I am using a pair of 6L6s to drive the 810s. For the interstage transformer I rewound the secondary of an output transformer from an old broadcast receiver that used a pair of 6L6s in the output stage. I am using a common plate power supply for both the RF and modulator tubes that puts out about 2200 volts. The RF carrier power is about 300 watts when driven with about 35 watts. Now here is the problem I am having with it. I am getting acoustical talkback when it is modulated and I can't find out where it is coming from. I have temporarily substituted a different mod transformer and bypassed the mod reactor, but I am still getting it. So that is where I am at now. I don't want to put it on the air until I get that problem resolved. DonK9MUF - Original Message - From: Mike Sawyer To: Discussion of AM Radio in the Amateur Service Sent: Mon, 9 Feb 2009 21:13:24 + (UTC) Subject: Re: [AMRadio] single 833 I always wanted a rig that uses the 833. It such a neat and different tube. I have a good supply of 810's so I figured a pair will modulate one nicely. I like the BTA-500/1MX's. As a matter of fact, I was supposed to be wheeling and dealing on a -500MX with Eric, WB4VVI (SK) before he went SK. Oh well. I like the prospects of the 810's and the single 833. It won't weigh near as much as one of those boxes. I have some nice black krinkle panels so a krinkle motif is in the cards. Mod-U-Lator, Mike(y) W3SLK - Original Message - From: John Lyles To: Sent: Monday, February 09, 2009 9:39 AM Subject: [AMRadio] single 833 There's a fellow near me that built a single 833 modulated by a single 833, one of a class A bias-changing heising design. I gave him a big reactor for it. I can get details if anyone wants. 73, John K5PRO on the road from Oklahoma City this morning __ 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] 833 AM rig
Otis is 87 yrs old. I'll get back with you guys later. John From: amradio-boun...@mailman.qth.net [mailto:amradio-boun...@mailman.qth.net] On Behalf Of Bob Peters Sent: Monday, February 09, 2009 8:40 AM To: 'Discussion of AM Radio in the Amateur Service' Subject: Re: [AMRadio] 833 AM rig OTIS had his 85th Birthday party on Saturday... All the guys BXO/ SEE and a lot of others had for him but you are correct he is not on the air. Something like the floor in the shack is not safe... From what we hear he is doing well..You are correct on the sweet sounding rig... Very Best 73's, Bob W1PE Mesquite,TX http://www.w1pe.com From: amradio-boun...@mailman.qth.net [mailto:amradio-boun...@mailman.qth.net] On Behalf Of LEE BAHR Sent: Monday, February 09, 2009 7:59 AM To: Discussion of AM Radio in the Amateur Service Subject: Re: [AMRadio] 833 AM rig Otis is alive, doesn't get on the air, lives in the far reaching Northern area of Houston, Tx. John Coleman, WA5BXO sees him from time to time. Lee, w0vt - Original Message - From: Bob Carpentermailto:bcarpenter_...@bellsouth.net To: 'Discussion of AM Radio in the Amateur Service'mailto:amradio@mailman.qth.net Sent: Monday, February 09, 2009 8:03 AM Subject: Re: [AMRadio] 833 AM rig What ever happen to Otis ? I can guess that by this time is may be a SK. I use to listen to him along with W4RKG on 75 meters in the 60's running some beautiful a.m. I recall that Otis was in Shreveport La. Ma he had such a sweet a.m. sound. I would listen to him along with a large group on 75 using a Allied span master reg. receiver that I build in 65. Great memories, wish a.m. could be like that again. Bob Carpenter KB4WEC bcarpenter_...@bellsouth.netmailto:bcarpenter_...@bellsouth.net From: amradio-boun...@mailman.qth.net [mailto:amradio-boun...@mailman.qth.net] On Behalf Of Jim Wilhite Sent: Sunday, February 08, 2009 4:48 PM To: Discussion of AM Radio in the Amateur Service Subject: Re: [AMRadio] 833 AM rig Maybe John/WA5BXO will read the messages soon. Otis/K5SWK built one like this some years back and it still plays over at De Queen, AR. Ken/KA5RHK still uses it. I would imagine John can tell us what Otis did. Jim/W5JO - Original Message - I would be interested myself. Mod-U-Lator, Mike(y) W3SLK - Original Message - Hello I like to build an AM transmitter with one tube 833A,any one have a circuit diagram... many thanks joe __ 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] 833 AM rig
Ok here's the deal. Otis runs a single 833 in the class C final and modulates with a pair . The single 833A is in a circuit for push pull but only has the one tube in it. and only one nuetralizing capacitor and only one coupling capacitor to the ballanced tank with swinging link. The grid circuit is a push pull tank but any other typewill work as it's only function is to supply the proper driver to the final grid. The plate tank is a push pull balance type because the phase inversion for the neutralizing cap is accomplished by the ballanced plate tank. The tank circuit is shunt fed to keep the DC and audio off of the tank circuit. The center tap of the coil does have a RF choke but it goes to ground to insure that there is no audio or DC on the tank components. He used to run about 3000 volts on the plates but after the AM power reduction thing he ran about 2500V at 200 ma. I can pretty much draw the circuit but you may wish to consult the web page at http://www.qsl.net/wa5bxo/pptriodes/pptriodes.htm Please note that the circuits do not depict the shunt feed tank coil. But I can draw that up if someone needs it. The above web page has not been proof read by anyone that is good at it, so there may be some spelling, grammer and other mistakes in it. John, WA5BXO __ 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] GB Cheap multimeter
Shipping for ChinaHarbor Freight is very nominal, and independent of weight,as I recall it's factored on cost of the item. I think a 50lb vice for $60 will sell the same cost as a $60 set of micrometers, unless they've changed... John At 07:54 PM 02/09/2009, Gary Pewitt wrote: Unfortunately the coupons are only good for in store purchases. They are missing a lot of business from me because of that. The nearest store is about 60 miles away so it's not much good to me. I do buy a lot by Internet if the items are fairly small. It's only worth a trip for large heavy items. Probably a lot of people in the same situation. 73 Gary At 08:29 AM 2/9/2009, sbjohns...@aol.com wrote: Harbor Freight has their red digital multimeters on sale for $2.99. And I received a coupon by email from them that gets the meters for $1.99. http://www.harborfreightusa.com/usa/itemdisplay/displayItem.do?itemid=90899 Steve WD8DAS sbjohns...@aol.com http://www.wd8das.net/ - Radio is your best entertainment value. - The Glowbugs E-mail List Website is: *** *** http://www.mines.uidaho.edu/~glowbugs/ ** *** Send subscribe and unsubscribe requests to this address: ** majord...@piobaire.mines.uidaho.edu ** Gary Pewitt N9ZSV garypew...@centurytel.net 479 675 4376 1500 French Prairie Rd. Booneville, Arkansas 72927 Sturgeon's Law Ninety percent of everything is crap. Pewitt's Law: But it's that other 10% that makes life worth living. The Glowbugs E-mail List Website is: *** *** http://www.mines.uidaho.edu/~glowbugs/ ** *** Send subscribe and unsubscribe requests to this address: ** majord...@piobaire.mines.uidaho.edu ** __ 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] 1 kw broadcast transmitter available--free
I have access to a free CCA Electronics Model 1000-D AM broadcast transmitter. It must be picked up as soon as possible and you are responsible for all loading and moving out of the building. The transmitter is in Southern Alabama. This would be a great rig for 160 or 75 meters. The transmitter is currently on the low end of the AM band560 kHz. This transmitter was working when taken out of service 2 years ago. It has a pair of 4-400As modulating a pair of 4-400As. THIS IS FOR HAM RADIO USE ONLY.I will be your worst nightmare if I catch you trying to sell it on eBay or putting on the broadcast band, etc. Please have interested parties contact me ASAPfirst come, first served. Remember it must be picked up as soon as possible. 73 Charlie NF4A n...@clearchannel.com __ 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] 1 kw broadcast transmitter available--free
charles, I'd be interested if it would fit in my Oddessy van. ALways wanted to try 4-400's all I've done are 833a's Gary K4XK --- On Mon, 2/9/09, Charles Wooten NF4A n...@knology.net wrote: From: Charles Wooten NF4A n...@knology.net Subject: [AMRadio] 1 kw broadcast transmitter available--free To: amradio@mailman.qth.net Date: Monday, February 9, 2009, 11:00 PM I have access to a free CCA Electronics Model 1000-D AM broadcast transmitter. It must be picked up as soon as possible and you are responsible for all loading and moving out of the building. The transmitter is in Southern Alabama. This would be a great rig for 160 or 75 meters. The transmitter is currently on the low end of the AM band560 kHz. This transmitter was working when taken out of service 2 years ago. It has a pair of 4-400As modulating a pair of 4-400As. THIS IS FOR HAM RADIO USE ONLY.I will be your worst nightmare if I catch you trying to sell it on eBay or putting on the broadcast band, etc. Please have interested parties contact me ASAPfirst come, first served. Remember it must be picked up as soon as possible. 73 Charlie NF4A n...@clearchannel.com __ 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] 1 kw broadcast transmitter available--free
Not to step on any feelings that may have come before me But where in Southern Alabama ? I ask because I'm in Loxley slap dab between Mobile Alabama and Pensacola Florida on the coast. Also I think my Diesel F-250 4x4 and 20 foot trailer ought to be able to load and tote that critter Hehehe. In addition I never sell Nuttin or throw Nuttin away. If you don't believe me ask the wife. But be ready for an ear full Skip WB4GMQ/AAV4HC -Original Message- From: amradio-boun...@mailman.qth.net [mailto:amradio-boun...@mailman.qth.net] On Behalf Of Charles Wooten NF4A Sent: Monday, February 09, 2009 11:01 PM To: amradio@mailman.qth.net Subject: [AMRadio] 1 kw broadcast transmitter available--free I have access to a free CCA Electronics Model 1000-D AM broadcast transmitter. It must be picked up as soon as possible and you are responsible for all loading and moving out of the building. The transmitter is in Southern Alabama. This would be a great rig for 160 or 75 meters. The transmitter is currently on the low end of the AM band560 kHz. This transmitter was working when taken out of service 2 years ago. It has a pair of 4-400As modulating a pair of 4-400As. THIS IS FOR HAM RADIO USE ONLY.I will be your worst nightmare if I catch you trying to sell it on eBay or putting on the broadcast band, etc. Please have interested parties contact me ASAPfirst come, first served. Remember it must be picked up as soon as possible. 73 Charlie NF4A n...@clearchannel.com __ 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
