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#41
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learning from experience
"William Sommerwerck" wrote:
"gregz" wrote in message ... Not too clear, me sitting in front of transmitter control, 1975. Wasn't my job. http://www.zekfrivolous.com/goldstone/sub/18.jpg Do you remember the control panel with the six channel buttons across the bottom? It's not visible in this shot. Odd coincidence... This photo was taken with a full-frame fisheye. I carried an Olympus OM at the time, and often took shots with such a lens. I don't remember panel. I do remember them talking about spending time tuning up there. The transfer scan could have been better. I took the shot with pentax fixed focus fisheye. Greg |
#42
Posted to rec.audio.pro
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learning from experience
"William Sommerwerck" wrote:
"gregz" wrote in message ... Not too clear, me sitting in front of transmitter control, 1975. Wasn't my job. http://www.zekfrivolous.com/goldstone/sub/18.jpg Do you remember the control panel with the six channel buttons across the bottom? It's not visible in this shot. Odd coincidence... This photo was taken with a full-frame fisheye. I carried an Olympus OM at the time, and often took shots with such a lens. Picture that does have six channels. This might be same panel, but reinstalled after some station updating. http://www.zekfrivolous.com/goldstone/sub/APOLL021.jpg Greg |
#43
Posted to rec.audio.pro
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learning from experience
gregz wrote:
"William Sommerwerck" wrote: "gregz" wrote in message ... Not too clear, me sitting in front of transmitter control, 1975. Wasn't my job. http://www.zekfrivolous.com/goldstone/sub/18.jpg Do you remember the control panel with the six channel buttons across the bottom? It's not visible in this shot. Odd coincidence... This photo was taken with a full-frame fisheye. I carried an Olympus OM at the time, and often took shots with such a lens. Picture that does have six channels. This might be same panel, but reinstalled after some station updating. http://www.zekfrivolous.com/goldstone/sub/APOLL021.jpg Greg One more. http://www.zekfrivolous.com/goldston...onsole1969.jpg Greg |
#44
Posted to rec.audio.pro
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learning from experience
"gregz" wrote in message
... One more. http://www.zekfrivolous.com/goldston...onsole1969.jpg That looks contemporary -- not much newer than the step tuner. Note that the panel has controls to monitor the tube's beam current and set the anode voltage. There are also meters to show the filament current. If it recall correctly, if the filament wasn't hot enough, the cathode would be stripped. |
#45
Posted to rec.audio.pro
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learning from experience
"gregz" wrote in message
... Picture that does have six channels. This might be same panel, but reinstalled after some station updating. http://www.zekfrivolous.com/goldstone/sub/APOLL021.jpg Ar, matey, that be it. I will save a copy. Thanks! I assume this is a recent photo. (Note the modern piece of test equipment at the top.) The system is still in use after 40 years! |
#46
Posted to rec.audio.pro
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learning from experience
gregz wrote:
Picture that does have six channels. This might be same panel, but reinstalled after some station updating. http://www.zekfrivolous.com/goldstone/sub/APOLL021.jpg That looks like a monitoring panel for a big TWT power amplifier. --scott -- "C'est un Nagra. C'est suisse, et tres, tres precis." |
#47
Posted to rec.audio.pro
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learning from experience
"Scott Dorsey" wrote in message ...
That looks like a monitoring panel for a big TWT power amplifier. Because that's what it is. The six buttons across the bottom select a channel, using a step-motor system to reset the klystron's cavities. |
#48
Posted to rec.audio.pro
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learning from experience
On 06/16/2014 09:28 PM, None wrote:
"William Sommerwerck" wrote in message ... "None" wrote in message ... Here's a simpler test. Are the following two lines the same? "First, it is ridiculed. Second, it is violently opposed." "It is condemned as paradoxical" Can you spot the difference? Yes. Your underwear is washed in Blue Cheer, whereas I wear no underwear. Semper ubi sub ubi, Willie. Especially when you're so fond of being caught with your pants down. You must still be traumatized by all the wedgies you got in school. Stop being a dick. No one here likes you. |
#49
Posted to rec.audio.pro
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learning from experience
http://www.zekfrivolous.com/goldstone/sub/APOLL021.jpg Ar, matey, that be it. I will save a copy. Thanks! I assume this is a recent photo. (Note the modern piece of test equipment at the top.) The system is still in use after 40 years! that "modern piece of test equipment" looks like a TEK TAS 475. so it depends on your definition of "modern" Mark |
#50
Posted to rec.audio.pro
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learning from experience
On 6/18/2014 11:48 AM, Tobiah wrote:
On 06/16/2014 09:28 PM, None wrote: "William Sommerwerck" wrote in message ... "None" wrote in message ... Here's a simpler test. Are the following two lines the same? "First, it is ridiculed. Second, it is violently opposed." "It is condemned as paradoxical" Can you spot the difference? Yes. Your underwear is washed in Blue Cheer, whereas I wear no underwear. Semper ubi sub ubi, Willie. Especially when you're so fond of being caught with your pants down. You must still be traumatized by all the wedgies you got in school. Stop being a dick. No one here likes you. Tobiah, [IMHO] a better retort would have been: vescere bracis meis. == L... RC -- |
#51
Posted to rec.audio.pro
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learning from experience
wrote in message ...
That "modern piece of test equipment" looks like a TEK TAS 475. So it depends on your definition of "modern". I wasn't sure of the make or model. But it's sure a lot more modern than what we had in 1975! Also, the photo "looks" digital, so I assumed it was recent. Does the OP know the year it was taken? |
#52
Posted to rec.audio.pro
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learning from experience
wrote:
that "modern piece of test equipment" looks like a TEK TAS 475. so it depends on your definition of "modern" I have a Tek 545 on my bench at work. The cal guys hate me. I keep it there partly to annoy them, but actually it's a great scope if you give it enough time to warm up and settle down. --scott -- "C'est un Nagra. C'est suisse, et tres, tres precis." |
#53
Posted to rec.audio.pro
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learning from experience
"William Sommerwerck" wrote:
"gregz" wrote in message ... Picture that does have six channels. This might be same panel, but reinstalled after some station updating. http://www.zekfrivolous.com/goldstone/sub/APOLL021.jpg Ar, matey, that be it. I will save a copy. Thanks! I assume this is a recent photo. (Note the modern piece of test equipment at the top.) The system is still in use after 40 years! The pic is a few years old. The station was set up for remote control. I don't know what's current. Greg |
#54
Posted to rec.audio.pro
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learning from experience
"William Sommerwerck" wrote:
wrote in message ... That "modern piece of test equipment" looks like a TEK TAS 475. So it depends on your definition of "modern". I wasn't sure of the make or model. But it's sure a lot more modern than what we had in 1975! Also, the photo "looks" digital, so I assumed it was recent. Does the OP know the year it was taken? I'm going to say, at least 8 years old. Greg |
#56
Posted to rec.audio.pro
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learning from experience
Gray_Wolf wrote:
On 18 Jun 2014 17:56:20 -0400, (Scott Dorsey) wrote: I have a Tek 545 on my bench at work. The cal guys hate me. I keep it there partly to annoy them, but actually it's a great scope if you give it enough time to warm up and settle down. --scott I had a 545 Tek in the USAF in the early 60's. Worked real smooth. I think it drew 500 watts from the power line I was actively servicing tube scopes up until early 2000. One of the last things I remember doing, was replacing a display tube. As far as I know, there is still a tek 565 scope at the heart of a medical school lab. The in's and out's went to various gear, much of it hand built. Greg |
#57
Posted to rec.audio.pro
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learning from experience
On Thu, 19 Jun 2014 04:43:18 +0000 (UTC), gregz
wrote: Gray_Wolf wrote: On 18 Jun 2014 17:56:20 -0400, (Scott Dorsey) wrote: I have a Tek 545 on my bench at work. The cal guys hate me. I keep it there partly to annoy them, but actually it's a great scope if you give it enough time to warm up and settle down. --scott I had a 545 Tek in the USAF in the early 60's. Worked real smooth. I think it drew 500 watts from the power line I was actively servicing tube scopes up until early 2000. One of the last things I remember doing, was replacing a display tube. As far as I know, there is still a tek 565 scope at the heart of a medical school lab. The in's and out's went to various gear, much of it hand built. Greg I picked up a Tek 514D ( 50's era?) in the early 70's for my own small audio shop. Single channel 15 MHz. It was great for audio. I got a 465M later on for digital stuff. It was still working when I got rid of it 10 years ago when I needed the space. It always liked the feeling I got when I turned it on and it powered up and the big fan kicked in. The 465M wasn't nearly as dramatic. |
#58
Posted to rec.audio.pro
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learning from experience
"gregz" wrote in message
... "William Sommerwerck" wrote: wrote in message ... Also, the photo "looks" digital, so I assumed it was recent. Does the OP know the year it was taken? I'm going to say, at least 8 years old. Okay, then... It was in use 32 years! |
#59
Posted to rec.audio.pro
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learning from experience
On Mon, 16 Jun 2014 23:55:07 -0400, Gary Eickmeier wrote:
Have you noticed that your brain will keep working under cover on a problem that you haven't solved yet if you just give it time? The first time I ever heard of this was when I was looking through some old (1950s) issues of Scientific American. There was an article on just this subject by a European mathematician. He told a story of how he was stumped by a problem he was trying to solve, and the solution came to him just as he was stepping onto a train. I've noticed the same kind of thing in myself many times, and I assume the brain is capable of running background processes subconsciously. It seems to work for me unless my attention is taken away by something that saturates my senses or thought processes, requiring me to look at the problem again to "reload". In the 1950s, this effect would have seemed very mysterious to anyone, but today, scientists are studying brain activity in real time (or thereabouts) with brain scanners. Now it is understood that our brains are active all of the time, and we are consciously aware of only a tiny bit of the total activity. That old thing about, "We use only 3% of our brains" was never true, although something like that is true of the amount of our brain activity we are conscious of. |
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