![]() |
Look what I stumbled across...
On Thu, 6 Nov 2008 18:24:24 -0500, "D.Duck" wrote:
"Eisboch" wrote in message ... Here's the one I used to play with: http://www.geocities.com/technician4/ronw1.jpg Eisboch The one in the link (above) is an old AN/FRT-40 used by the Navy primarily at shore based naval transmitter sites from late 40's. They were phased out by the mid 70's. The "40" was a 50kw version of this, an An/FRT-39. It was used both at shore stations and aboard ship. The left side rack contained the modulation mode select (CW, FSK, Voice, and the output mode .... carrier or SSB. It had an "exciter" capable of 1000 watts used to drive the right hand side, 10kw power amp. The exciter could also be used by itself, hooked to an antenna in emergencies. We used to have a lot of fun screwing around with that. http://jproc.ca/rrp/coverdale_gpt10k.gif A FRT-40 added an additional power output section to raise the output to 50KW I can't remember anymore. Is it "peak the grid, dip the plate" or the other way around? Here's one I used at the Marine MARS station on Okinawa fro RTTY traffic.. http://www.collinsradio.org/html/kw-1.html That was a sweet rig back in the day. Never really got into RTTY for some reason - when I was still up on code, I could "read" 60 Baudot RTTY by ear - could catch enough to parse the word pretty well. Then again, my CW speed was up around 65 wpm with 100% copy. I was just listening to the high speed cw net on 75 - I can still copy 40 wpm pretty well, but I've lost my 50+ speed ear - have to keep listening for a few days to get it back. A lot of that is machine code now done by computer - not a lot of us left who enjoy high speed full breakin code using a Vibrolplex bug. I use my Dad's presentation bug - he was given it by the radio guys on his DE during WWII. Love that thing. We also had several Collins original *S* Line setups. We had a 600' per leg rhombic pointed at Southern California, Camp Pendleton. They were are main outlet for RTTY traffic. My Dad's S-line is a great system - looks great too. Nothing like tubes. BTW, don't peak the plate, you'll be replacing finals. 8) Been there, done that. Much to my Dad's displeasure. :) |
Look what I stumbled across...
On Thu, 6 Nov 2008 18:24:24 -0500, "D.Duck" wrote:
"Eisboch" wrote in message ... Here's the one I used to play with: http://www.geocities.com/technician4/ronw1.jpg Eisboch The one in the link (above) is an old AN/FRT-40 used by the Navy primarily at shore based naval transmitter sites from late 40's. They were phased out by the mid 70's. The "40" was a 50kw version of this, an An/FRT-39. It was used both at shore stations and aboard ship. The left side rack contained the modulation mode select (CW, FSK, Voice, and the output mode .... carrier or SSB. It had an "exciter" capable of 1000 watts used to drive the right hand side, 10kw power amp. The exciter could also be used by itself, hooked to an antenna in emergencies. We used to have a lot of fun screwing around with that. http://jproc.ca/rrp/coverdale_gpt10k.gif A FRT-40 added an additional power output section to raise the output to 50KW I can't remember anymore. Is it "peak the grid, dip the plate" or the other way around? Eisboch Here's one I used at the Marine MARS station on Okinawa fro RTTY traffic.. http://www.collinsradio.org/html/kw-1.html We also had several Collins original *S* Line setups. We had a 600' per leg rhombic pointed at Southern California, Camp Pendleton. They were are main outlet for RTTY traffic. BTW, don't peak the plate, you'll be replacing finals. 8) You MARS guys were life-savers during the Vietnam days. Thanks for what you did! -- A Harry Krause truism: "It's not a *baby* kicking, beautiful bride, it's just a fetus!" |
Look what I stumbled across...
On Thu, 06 Nov 2008 23:59:06 GMT, Tom Francis - SWSports
wrote: On Thu, 6 Nov 2008 17:04:10 -0500, "Eisboch" wrote: "D.Duck" wrote in message ... "Tom Francis - SWSports" wrote in message ... http://tinyurl.com/5hkot4 Hmmmm....used to have one of those. Bit of nostalgia... My first, circa 1955 http://oak.cats.ohiou.edu/~postr/bapix/S20R.html Here's the one I used to play with: http://www.geocities.com/technician4/ronw1.jpg Got to play with the exciter of one once when I worked some MARS phone patches back in the day. I couldn't talk the Chief into letting me fire up the finals on the big guns though. :) I did get to play with an Air Force station at full power once though - blasted a signal right below the lower end of the 20 meter ham band on a phone patch to the East Coast - MARS again. That was cool. :) Man, we could get away with some stuff back then on MARS. Thank you for your MARS work also. -- A Harry Krause truism: "It's not a *baby* kicking, beautiful bride, it's just a fetus!" |
Look what I stumbled across...
"Tom Francis - SWSports" wrote in message ... On Thu, 6 Nov 2008 18:24:24 -0500, "D.Duck" wrote: "Eisboch" wrote in message ... Here's the one I used to play with: http://www.geocities.com/technician4/ronw1.jpg Eisboch The one in the link (above) is an old AN/FRT-40 used by the Navy primarily at shore based naval transmitter sites from late 40's. They were phased out by the mid 70's. The "40" was a 50kw version of this, an An/FRT-39. It was used both at shore stations and aboard ship. The left side rack contained the modulation mode select (CW, FSK, Voice, and the output mode .... carrier or SSB. It had an "exciter" capable of 1000 watts used to drive the right hand side, 10kw power amp. The exciter could also be used by itself, hooked to an antenna in emergencies. We used to have a lot of fun screwing around with that. http://jproc.ca/rrp/coverdale_gpt10k.gif A FRT-40 added an additional power output section to raise the output to 50KW I can't remember anymore. Is it "peak the grid, dip the plate" or the other way around? Here's one I used at the Marine MARS station on Okinawa fro RTTY traffic.. http://www.collinsradio.org/html/kw-1.html That was a sweet rig back in the day. Never really got into RTTY for some reason - when I was still up on code, I could "read" 60 Baudot RTTY by ear - could catch enough to parse the word pretty well. Then again, my CW speed was up around 65 wpm with 100% copy. I was just listening to the high speed cw net on 75 - I can still copy 40 wpm pretty well, but I've lost my 50+ speed ear - have to keep listening for a few days to get it back. A lot of that is machine code now done by computer - not a lot of us left who enjoy high speed full breakin code using a Vibrolplex bug. I use my Dad's presentation bug - he was given it by the radio guys on his DE during WWII. Love that thing. We also had several Collins original *S* Line setups. We had a 600' per leg rhombic pointed at Southern California, Camp Pendleton. They were are main outlet for RTTY traffic. My Dad's S-line is a great system - looks great too. Nothing like tubes. BTW, don't peak the plate, you'll be replacing finals. 8) Been there, done that. Much to my Dad's displeasure. :) While searching for a picture of the KW-1 I came across this site. Quite a collection. http://www.isquare.com/personal_pages/ras-hardware.htm |
Look what I stumbled across...
On Thu, 6 Nov 2008 18:31:32 -0500, "D.Duck" wrote:
"Tom Francis - SWSports" wrote in message ... On Thu, 6 Nov 2008 16:47:14 -0500, "D.Duck" wrote: "Tom Francis - SWSports" wrote in message ... http://tinyurl.com/5hkot4 Hmmmm....used to have one of those. Bit of nostalgia... My first, circa 1955 http://oak.cats.ohiou.edu/~postr/bapix/S20R.html Yeppers - never owned one, but one of my buddies did. This was my very first shortwave radio I built in kit form. http://oak.cats.ohiou.edu/~postr/bapix/Hal_S119.htm I remember when I built it, the detector diode was blown so my Dad and I went to Radio Shack in Boston and got several. There must have been a difference, because that radio was HOT even on the built in whip antenna. I outgrew that one and managed to save enough money to get the SW-500. http://oak.cats.ohiou.edu/~postr/bapix/S120.html By that time, I had my ticket and was using it as a standby receiver. I still have it (had it recently restored) - modified to receive SSB. Man, those were the days. Staying up late at night "working" AM stations around the country. In those days, the SWL could write the station, send a signal report with a brief description of the programming and how long you listened and the station's Chief Engineer would return a QSL card verifying that your information was correct and a thanks for listening. My very first one was a station in Des Moines, Iowa - a small, 1kw (night time) country western station. I'd have to go through the QSL card file to remember the call sign. One of my best shortwave ones ever was Thailand - AM no less on a rainy Saturday. Took five weeks, but I got the QSL card. :) My Dad was a ham from the 1930's. Never got active again after the forced shut down during WWII. In the 50's when I was 12 he bought me a kit from Allied Radio. Looked about the same as your Sky Buddy except had plug in coils for various frequency ranges. There were several like that - Lafayette and Allied made a few like it in kit form. It wasn't a Space Spanner by any chance? Seems to me I remember one of the guys in my Scout troop built one of those. That got my Dad started again and I progressed up the ranks from novice, general and amateur extra. I haven't been active for many years. Except of the CW banks it seemed that the rest of the frequency allocations turned into a giant CB party. I blame no-code. :) Ahhh, the good ole days.... Tell me about it. We used to do some really cool stuff just experimenting and what not. One of my most memorable QSOs was with a guy in Chicago I worked off a 100 watt industrial light bulb as a dummy load when I built my first Heathkit transmitter. Milwaukee to Chicago from my basement "shack" at 50 watts off a light bulb. Or the time I shunt loaded a steel rail road bridge on a bet and worked a guy 300 miles away on CW. :) Or the time I obtained a weather balloon and made a 2,500 vertical complete with ground grid for 160 on Field Day. Man, was that antenna loud. Only stayed calm enough for an hour, but I made a ton of Qs during that hour. :) Yep - the good old days. |
Look what I stumbled across...
On Fri, 07 Nov 2008 00:49:03 GMT, JohnH wrote:
On Thu, 06 Nov 2008 23:59:06 GMT, Tom Francis - SWSports wrote: On Thu, 6 Nov 2008 17:04:10 -0500, "Eisboch" wrote: "D.Duck" wrote in message ... "Tom Francis - SWSports" wrote in message ... http://tinyurl.com/5hkot4 Hmmmm....used to have one of those. Bit of nostalgia... My first, circa 1955 http://oak.cats.ohiou.edu/~postr/bapix/S20R.html Here's the one I used to play with: http://www.geocities.com/technician4/ronw1.jpg Got to play with the exciter of one once when I worked some MARS phone patches back in the day. I couldn't talk the Chief into letting me fire up the finals on the big guns though. :) I did get to play with an Air Force station at full power once though - blasted a signal right below the lower end of the 20 meter ham band on a phone patch to the East Coast - MARS again. That was cool. :) Man, we could get away with some stuff back then on MARS. Thank you for your MARS work also. Hey - it was fun for us too you know. Got to play with some great military gear when it was available and where there wasn't military gear, the club stations were top notch. Besides, back in those days, it was part of the deal - the reason for the Amateur Radio Service's existence. And who woulnd't want to help our fellow soldiers, sailors and airmen if you could. It was a blast - like life in a way - sometimes tragic, sometimes joyful, but always important. |
Look what I stumbled across...
"Tom Francis - SWSports" wrote in message ... On Thu, 6 Nov 2008 18:24:24 -0500, "D.Duck" wrote: "Eisboch" wrote in message ... Here's the one I used to play with: http://www.geocities.com/technician4/ronw1.jpg Eisboch The one in the link (above) is an old AN/FRT-40 used by the Navy primarily at shore based naval transmitter sites from late 40's. They were phased out by the mid 70's. The "40" was a 50kw version of this, an An/FRT-39. It was used both at shore stations and aboard ship. The left side rack contained the modulation mode select (CW, FSK, Voice, and the output mode .... carrier or SSB. It had an "exciter" capable of 1000 watts used to drive the right hand side, 10kw power amp. The exciter could also be used by itself, hooked to an antenna in emergencies. We used to have a lot of fun screwing around with that. http://jproc.ca/rrp/coverdale_gpt10k.gif A FRT-40 added an additional power output section to raise the output to 50KW I can't remember anymore. Is it "peak the grid, dip the plate" or the other way around? Here's one I used at the Marine MARS station on Okinawa fro RTTY traffic.. http://www.collinsradio.org/html/kw-1.html That was a sweet rig back in the day. Never really got into RTTY for some reason - when I was still up on code, I could "read" 60 Baudot RTTY by ear - could catch enough to parse the word pretty well. Then again, my CW speed was up around 65 wpm with 100% copy. I was just listening to the high speed cw net on 75 - I can still copy 40 wpm pretty well, but I've lost my 50+ speed ear - have to keep listening for a few days to get it back. A lot of that is machine code now done by computer - not a lot of us left who enjoy high speed full breakin code using a Vibrolplex bug. I use my Dad's presentation bug - he was given it by the radio guys on his DE during WWII. Love that thing. We also had several Collins original *S* Line setups. We had a 600' per leg rhombic pointed at Southern California, Camp Pendleton. They were are main outlet for RTTY traffic. My Dad's S-line is a great system - looks great too. Nothing like tubes. BTW, don't peak the plate, you'll be replacing finals. 8) Been there, done that. Much to my Dad's displeasure. :) Never could get into the code. I just looked at the wheels and figured out the dots and dashes on the navigation systems I worked on. Tacan, Loran, ILS beacons. |
Look what I stumbled across...
"Tom Francis - SWSports" wrote in message ... On Thu, 6 Nov 2008 18:31:32 -0500, "D.Duck" wrote: "Tom Francis - SWSports" wrote in message ... On Thu, 6 Nov 2008 16:47:14 -0500, "D.Duck" wrote: "Tom Francis - SWSports" wrote in message ... http://tinyurl.com/5hkot4 Hmmmm....used to have one of those. Bit of nostalgia... My first, circa 1955 http://oak.cats.ohiou.edu/~postr/bapix/S20R.html Yeppers - never owned one, but one of my buddies did. This was my very first shortwave radio I built in kit form. http://oak.cats.ohiou.edu/~postr/bapix/Hal_S119.htm I remember when I built it, the detector diode was blown so my Dad and I went to Radio Shack in Boston and got several. There must have been a difference, because that radio was HOT even on the built in whip antenna. I outgrew that one and managed to save enough money to get the SW-500. http://oak.cats.ohiou.edu/~postr/bapix/S120.html By that time, I had my ticket and was using it as a standby receiver. I still have it (had it recently restored) - modified to receive SSB. Man, those were the days. Staying up late at night "working" AM stations around the country. In those days, the SWL could write the station, send a signal report with a brief description of the programming and how long you listened and the station's Chief Engineer would return a QSL card verifying that your information was correct and a thanks for listening. My very first one was a station in Des Moines, Iowa - a small, 1kw (night time) country western station. I'd have to go through the QSL card file to remember the call sign. One of my best shortwave ones ever was Thailand - AM no less on a rainy Saturday. Took five weeks, but I got the QSL card. :) My Dad was a ham from the 1930's. Never got active again after the forced shut down during WWII. In the 50's when I was 12 he bought me a kit from Allied Radio. Looked about the same as your Sky Buddy except had plug in coils for various frequency ranges. There were several like that - Lafayette and Allied made a few like it in kit form. It wasn't a Space Spanner by any chance? Seems to me I remember one of the guys in my Scout troop built one of those. That got my Dad started again and I progressed up the ranks from novice, general and amateur extra. I haven't been active for many years. Except of the CW banks it seemed that the rest of the frequency allocations turned into a giant CB party. I blame no-code. :) Ahhh, the good ole days.... Tell me about it. We used to do some really cool stuff just experimenting and what not. One of my most memorable QSOs was with a guy in Chicago I worked off a 100 watt industrial light bulb as a dummy load when I built my first Heathkit transmitter. Milwaukee to Chicago from my basement "shack" at 50 watts off a light bulb. Or the time I shunt loaded a steel rail road bridge on a bet and worked a guy 300 miles away on CW. :) Or the time I obtained a weather balloon and made a 2,500 vertical complete with ground grid for 160 on Field Day. Man, was that antenna loud. Only stayed calm enough for an hour, but I made a ton of Qs during that hour. :) Yep - the good old days. What I played with: http://www.navcom.com/tacan.pdf |
Look what I stumbled across...
"Tom Francis - SWSports" wrote in message ... On Thu, 6 Nov 2008 17:04:10 -0500, "Eisboch" wrote: "D.Duck" wrote in message ... "Tom Francis - SWSports" wrote in message ... http://tinyurl.com/5hkot4 Hmmmm....used to have one of those. Bit of nostalgia... My first, circa 1955 http://oak.cats.ohiou.edu/~postr/bapix/S20R.html Here's the one I used to play with: http://www.geocities.com/technician4/ronw1.jpg Got to play with the exciter of one once when I worked some MARS phone patches back in the day. I couldn't talk the Chief into letting me fire up the finals on the big guns though. :) I did get to play with an Air Force station at full power once though - blasted a signal right below the lower end of the 20 meter ham band on a phone patch to the East Coast - MARS again. That was cool. :) Man, we could get away with some stuff back then on MARS. After I completed my initial and short introductory phase of military service, I came back to the states and was offered electronics schools in IL. I had been a Radioman and had a TTY repair job code, so my "watches" during school was manning the base Mars station once every four days. I didn't know much about Mars when I first started, but got the hang of it after a while. It was always a busy watch, being the only military representative on the net. Even did a few watches as "net control" a few times. That was a long, long time ago. Now everybody uses cell phones, I guess. Eisboch |
Look what I stumbled across...
On Thu, 06 Nov 2008 21:00:35 GMT, Tom Francis - SWSports
wrote: http://tinyurl.com/5hkot4 Hmmmm....used to have one of those. Bit of nostalgia... I had one of these as a kid: http://www.youtube.com/watch?v=HnWFPmG0ypo http://www.antiqueradio.org/halli07.htm My Dad bought it right after WWII in 1947 and it was built like a battleship. It had continuous tuning from the bottom of the broadcast band at .55 MHz all the way to the top of the FM band at 108 MHz. When I was 12 years old I built of of these: http://www.eham.net/reviews/detail/4093 |
All times are GMT +1. The time now is 08:55 PM. |
Powered by vBulletin® Copyright ©2000 - 2025, Jelsoft Enterprises Ltd.
Copyright ©2004 - 2014 BoatBanter.com