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#1
posted to rec.boats
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"Wizard of Woodstock" wrote in message ... On Wed, 20 May 2009 17:25:21 -0700, "Calif Bill" wrote: "Wizard of Woodstock" wrote in message . .. On Wed, 20 May 2009 02:46:50 -0400, "Eisboch" wrote: I think they should put new tubes in the old LORAN system transmitters and keep 'em running for a while. There 'ya go - Tubes. WHOO HOO!!! ~~ From a radio Luddite ~~ Last Loran I had did not have Valves. You know - you could make the argument that transistors are nothing more than solid state vacuum tubes. Which would make them valves. True, but in conventional wisdom, tubes are valves, transistors are simply "solid state". For Calif Bill's benefit, I wasn't referring to a LORAN receiver which is most assuredly solid state. I was speaking of the transmitters that are very likely to still use big old vacuum tube power amp outputs. Eisboch |
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#2
posted to rec.boats
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On Wed, 20 May 2009 20:53:26 -0400, "Eisboch"
wrote: "Wizard of Woodstock" wrote in message .. . On Wed, 20 May 2009 17:25:21 -0700, "Calif Bill" wrote: "Wizard of Woodstock" wrote in message ... On Wed, 20 May 2009 02:46:50 -0400, "Eisboch" wrote: I think they should put new tubes in the old LORAN system transmitters and keep 'em running for a while. There 'ya go - Tubes. WHOO HOO!!! ~~ From a radio Luddite ~~ Last Loran I had did not have Valves. You know - you could make the argument that transistors are nothing more than solid state vacuum tubes. Which would make them valves. True, but in conventional wisdom, tubes are valves, transistors are simply "solid state". For Calif Bill's benefit, I wasn't referring to a LORAN receiver which is most assuredly solid state. I was speaking of the transmitters that are very likely to still use big old vacuum tube power amp outputs. MORE POWER!!! 3CX3000A7 baby.... |
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#3
posted to rec.boats
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"Wizard of Woodstock" wrote in message ... On Wed, 20 May 2009 20:53:26 -0400, "Eisboch" wrote: "Wizard of Woodstock" wrote in message . .. On Wed, 20 May 2009 17:25:21 -0700, "Calif Bill" wrote: "Wizard of Woodstock" wrote in message m... On Wed, 20 May 2009 02:46:50 -0400, "Eisboch" wrote: I think they should put new tubes in the old LORAN system transmitters and keep 'em running for a while. There 'ya go - Tubes. WHOO HOO!!! ~~ From a radio Luddite ~~ Last Loran I had did not have Valves. You know - you could make the argument that transistors are nothing more than solid state vacuum tubes. Which would make them valves. True, but in conventional wisdom, tubes are valves, transistors are simply "solid state". For Calif Bill's benefit, I wasn't referring to a LORAN receiver which is most assuredly solid state. I was speaking of the transmitters that are very likely to still use big old vacuum tube power amp outputs. MORE POWER!!! 3CX3000A7 baby.... They make good drivers. |
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#4
posted to rec.boats
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wrote in message ... On Wed, 20 May 2009 21:26:52 -0400, "D.Duck" wrote: "Wizard of Woodstock" wrote in message . .. On Wed, 20 May 2009 20:53:26 -0400, "Eisboch" wrote: "Wizard of Woodstock" wrote in message m... On Wed, 20 May 2009 17:25:21 -0700, "Calif Bill" wrote: "Wizard of Woodstock" wrote in message news:9fk7159sn48jsopfa7e3lt6kq91j2ttp7u@4ax. com... On Wed, 20 May 2009 02:46:50 -0400, "Eisboch" wrote: I think they should put new tubes in the old LORAN system transmitters and keep 'em running for a while. There 'ya go - Tubes. WHOO HOO!!! ~~ From a radio Luddite ~~ Last Loran I had did not have Valves. You know - you could make the argument that transistors are nothing more than solid state vacuum tubes. Which would make them valves. True, but in conventional wisdom, tubes are valves, transistors are simply "solid state". For Calif Bill's benefit, I wasn't referring to a LORAN receiver which is most assuredly solid state. I was speaking of the transmitters that are very likely to still use big old vacuum tube power amp outputs. MORE POWER!!! 3CX3000A7 baby.... They make good drivers. And they continue to work during a nuclear holocaust that disables solid state electronics. And why would you need a tube radio after a nuke holocaust? No power or stations left? |
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#5
posted to rec.boats
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"Wizard of Woodstock" wrote in message ... On Wed, 20 May 2009 20:53:26 -0400, "Eisboch" wrote: "Wizard of Woodstock" wrote in message . .. On Wed, 20 May 2009 17:25:21 -0700, "Calif Bill" wrote: "Wizard of Woodstock" wrote in message m... On Wed, 20 May 2009 02:46:50 -0400, "Eisboch" wrote: I think they should put new tubes in the old LORAN system transmitters and keep 'em running for a while. There 'ya go - Tubes. WHOO HOO!!! ~~ From a radio Luddite ~~ Last Loran I had did not have Valves. You know - you could make the argument that transistors are nothing more than solid state vacuum tubes. Which would make them valves. True, but in conventional wisdom, tubes are valves, transistors are simply "solid state". For Calif Bill's benefit, I wasn't referring to a LORAN receiver which is most assuredly solid state. I was speaking of the transmitters that are very likely to still use big old vacuum tube power amp outputs. MORE POWER!!! 3CX3000A7 baby.... Funniest event during school at Keesler was during a TACAN class. We ran the units on Low Power. Only 3000 volts on the tubes. About 3kw dummy load. We had a Vietnamese MAP student in the class. Had absolutely no common sense when it came to electricity! When you needed to work on the unit, you turned the dial on the front of the drawer to zero. Open the drawer and use a shorting bar to make sure all the caps are discharged. The kid did not bother turning down the power, and opened the drawer and proceeded to touch the shorting bar everywhere. Sparks bouncing off the 12' ceiling and he never realized something was wrong or even different. The instructor was in shock, the rest of us were in hysterics. |
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#6
posted to rec.boats
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"Calif Bill" wrote in message ... Funniest event during school at Keesler was during a TACAN class. We ran the units on Low Power. Only 3000 volts on the tubes. About 3kw dummy load. We had a Vietnamese MAP student in the class. Had absolutely no common sense when it came to electricity! When you needed to work on the unit, you turned the dial on the front of the drawer to zero. Open the drawer and use a shorting bar to make sure all the caps are discharged. The kid did not bother turning down the power, and opened the drawer and proceeded to touch the shorting bar everywhere. Sparks bouncing off the 12' ceiling and he never realized something was wrong or even different. The instructor was in shock, the rest of us were in hysterics. I have been just as stupid. While on a mid-watch at a Navy transmitter site in Puerto Rico, I was working on an old AN/FRT-40 HF transmitter. Shut the thing down, opened the rear door to the power supply section and then was interrupted by a phone call or something. When I returned to the transmitter, I hit my hand against a connection to one of the huge power supply filter capacitors and discharged it through me. The muscle contractions caused me to fly backwards about 7 feet back and about 4 feet up against the building wall and for several minutes all I saw were stars. I was lucky. That was my first high voltage, high current experience. Had another later as a civilian that was worse. Knocked me out cold and was rushed to the emergency room. Fortunately, no permanent injury other than some bad burns on my hands. Eisboch |
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#7
posted to rec.boats
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"Eisboch" wrote in message ... "Calif Bill" wrote in message ... Funniest event during school at Keesler was during a TACAN class. We ran the units on Low Power. Only 3000 volts on the tubes. About 3kw dummy load. We had a Vietnamese MAP student in the class. Had absolutely no common sense when it came to electricity! When you needed to work on the unit, you turned the dial on the front of the drawer to zero. Open the drawer and use a shorting bar to make sure all the caps are discharged. The kid did not bother turning down the power, and opened the drawer and proceeded to touch the shorting bar everywhere. Sparks bouncing off the 12' ceiling and he never realized something was wrong or even different. The instructor was in shock, the rest of us were in hysterics. I have been just as stupid. While on a mid-watch at a Navy transmitter site in Puerto Rico, I was working on an old AN/FRT-40 HF transmitter. Shut the thing down, opened the rear door to the power supply section and then was interrupted by a phone call or something. When I returned to the transmitter, I hit my hand against a connection to one of the huge power supply filter capacitors and discharged it through me. The muscle contractions caused me to fly backwards about 7 feet back and about 4 feet up against the building wall and for several minutes all I saw were stars. I was lucky. That was my first high voltage, high current experience. Had another later as a civilian that was worse. Knocked me out cold and was rushed to the emergency room. Fortunately, no permanent injury other than some bad burns on my hands. Eisboch My episode was checking the voltage on an airborne radar unit out of a probably C-141. Do not remember the model number anymore. 400 VDC and a meter lead unlike any I have ever seen before or sense. Had an extra ring on the insulated part that was hot to the probe. About 20' later I get up off the floor. Having missed every workbench and stand in the area. My muscles hurt for at least 3 days afterwards. |
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#8
posted to rec.boats
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On May 22, 2:07*am, "Calif Bill" wrote:
"Eisboch" wrote in message ... "Calif Bill" wrote in message ... Funniest event during school at Keesler was during a TACAN class. *We ran the units on Low Power. *Only 3000 volts on the tubes. *About 3kw dummy load. *We had a Vietnamese MAP student in the class. *Had absolutely no common sense when it came to electricity! *When you needed to work on the unit, you turned the dial on the front of the drawer to zero. *Open the drawer and use a shorting bar to make sure all the caps are discharged.. The kid did not bother turning down the power, and opened the drawer and proceeded to touch the shorting bar everywhere. *Sparks bouncing off the 12' ceiling and he never realized something was wrong or even different. |
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#9
posted to rec.boats
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#10
posted to rec.boats
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wrote in message ... On May 22, 2:07 am, "Calif Bill" wrote: "Eisboch" wrote in message ... "Calif Bill" wrote in message ... Funniest event during school at Keesler was during a TACAN class. We ran the units on Low Power. Only 3000 volts on the tubes. About 3kw dummy load. We had a Vietnamese MAP student in the class. Had absolutely no common sense when it came to electricity! When you needed to work on the unit, you turned the dial on the front of the drawer to zero. Open the drawer and use a shorting bar to make sure all the caps are discharged. The kid did not bother turning down the power, and opened the drawer and proceeded to touch the shorting bar everywhere. Sparks bouncing off the 12' ceiling and he never realized something was wrong or even different. The instructor was in shock, the rest of us were in hysterics. I have been just as stupid. While on a mid-watch at a Navy transmitter site in Puerto Rico, I was working on an old AN/FRT-40 HF transmitter. Shut the thing down, opened the rear door to the power supply section and then was interrupted by a phone call or something. When I returned to the transmitter, I hit my hand against a connection to one of the huge power supply filter capacitors and discharged it through me. The muscle contractions caused me to fly backwards about 7 feet back and about 4 feet up against the building wall and for several minutes all I saw were stars. I was lucky. That was my first high voltage, high current experience. Had another later as a civilian that was worse. Knocked me out cold and was rushed to the emergency room. Fortunately, no permanent injury other than some bad burns on my hands. Eisboch My episode was checking the voltage on an airborne radar unit out of a probably C-141. Do not remember the model number anymore. 400 VDC and a meter lead unlike any I have ever seen before or sense. Had an extra ring on the insulated part that was hot to the probe. About 20' later I get up off the floor. Having missed every workbench and stand in the area. My muscles hurt for at least 3 days afterwards. Kinda like tricking some fool into ****ing on an Electric Fence. Hurt much worse than touching an electric fence. Was smart enough to not **** on one. |