W7TFO
WTF-OVER in 7 land Dennis
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IN A TRIODE NO ONE CAN HEAR YOUR SCREEN
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« on: February 24, 2015, 07:47:56 PM » |
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Just pacing the Farady cage...
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KA0HCP
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« Reply #1 on: February 24, 2015, 08:06:54 PM » |
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mind boggling.
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New callsign KA0HCP, ex-KB4QAA. Relocated to Kansas in April 2019.
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WBear2GCR
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Brrrr- it's cold in the shack! Fire up the BIG RIG
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« Reply #2 on: February 24, 2015, 11:09:19 PM » |
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lovely!
buzzardly too!
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Opcom
Patrick J. / KD5OEI
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« Reply #3 on: February 25, 2015, 12:18:18 AM » |
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possibly does I.F. sweep and alignment too? what a beast! Got enough mike button connectors?? Must be the the test leads. Take care of them CRTs.
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Radio Candelstein - Flagship Station of the NRK Radio Network.
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WQ9E
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« Reply #4 on: February 25, 2015, 07:28:01 AM » |
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Some 1950s SciFi movie wants their prop back  Nice find Dennis! |
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Rodger WQ9E
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W2VW
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« Reply #5 on: February 25, 2015, 08:38:44 AM » |
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Isn't that the new Pure Signal pre-distortion unit?
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KB5MD
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« Reply #6 on: February 25, 2015, 11:12:22 AM » |
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That is the unit used by H.G. Wells for peering through worm holes when he was warping in time travel.
Maybe it's a movie prop, sure looks like it.
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W7TFO
WTF-OVER in 7 land Dennis
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IN A TRIODE NO ONE CAN HEAR YOUR SCREEN
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« Reply #7 on: February 25, 2015, 11:17:52 AM » |
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Not a prop, they guy was obviously a "deep" TV tech. The circuitry is way too complex for anyone not in the engineering business end of television.
You could watch the image on the left 5BP4 CRT, waveforms on the right 5BP1.
It was fully functional in the beginning.
73DG
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Just pacing the Farady cage...
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flintstone mop
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« Reply #8 on: February 25, 2015, 12:18:40 PM » |
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ENDLESS supply of knobs and controls
What a piece of history!!!
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Fred KC4MOP
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Carl WA1KPD
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« Reply #9 on: February 25, 2015, 01:16:41 PM » |
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I like the clock radio timers
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Carl
"Okay, gang are you ready to play radio? Are you ready to shuffle off the mortal coil of mediocrity? I am if you are." Shepherd
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WQ9E
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« Reply #10 on: February 25, 2015, 01:44:43 PM » |
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Not a prop, they guy was obviously a "deep" TV tech. The circuitry is way too complex for anyone not in the engineering business end of television.
You could watch the image on the left 5BP4 CRT, waveforms on the right 5BP1.
It was fully functional in the beginning.
73DG
Dennis, My prop comment was a joke and it is clearly a real piece of gear. But it certainly would look the part if you decide to go into independent film work and do a 1950s SciFi remake. Stuff like that piece is often difficult to use now but it is a shame to part out something so nicely built. You could use two of those CRT clock kits and have a nice UTC and local time display with lots of buttons and controls left over. |
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Rodger WQ9E
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N1BCG
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« Reply #11 on: February 25, 2015, 02:17:34 PM » |
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Wow.
If I had something like that I'd take it to hamfests, not to sell, but to enjoy the reactions from those who notice it.
"It's a Permeability-Biased Quadrature Optimetrical Gaze Catcher".
Hours of entertainment and no need to plug it in.
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Carl WA1KPD
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« Reply #12 on: February 25, 2015, 02:58:03 PM » |
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From the ARF discussion "The person that built lived in Northern Arizona. Ran a TV repair shop. Might have worked in broadcast, but from the look of the design, no." I wonder if he used it when doing home repairs for people  . Imagine having him drag that in to your living room.... Carl /KPD |
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Carl
"Okay, gang are you ready to play radio? Are you ready to shuffle off the mortal coil of mediocrity? I am if you are." Shepherd
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W7TFO
WTF-OVER in 7 land Dennis
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IN A TRIODE NO ONE CAN HEAR YOUR SCREEN
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« Reply #13 on: February 25, 2015, 03:44:07 PM » |
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It is on wheels, but not that heavy. (The 50Hy RCA choke I bought there, now THAT is heavy  ) Cheap IGA rack cabinet, little bits of iron in the build. I do imagine their workbench was quite the conversation piece.  DDG |
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Just pacing the Farady cage...
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n1ps
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websdr http://sebagolakesdr.us:8901/
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« Reply #14 on: February 25, 2015, 08:54:11 PM » |
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it reminds me of an old girlfriend. Too many buttons.
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KA3EKH
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« Reply #15 on: February 26, 2015, 11:51:55 AM » |
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Pure speculation on my part but maybe it was used to look at video waveforms at field and line rate at the same time. In the days of analog television you were constantly looking at your video on a waveform monitor to check modulation level and sync compression. DC response was more apparent at the frame rate but if you had a video chopper for setting your modulation you wanted to see that at one or two line rate. Thing is ever TV station I have ever worked at or visited had Tektronix waveform monitors for this and cannot imagine anyone building such an important item. Maybe this was built by someone who maintained a LPTV or translator and not a real broadcast operation? Some of the old time radio operations that I have gone into to upgrade years ago would have things like home built remote control systems, transfer switch controls and other terminal equipment and in those days that would be the first stuff that I removed and disposed of. Things that the old time engineers spent much time building but the next generation of engineers had no time for. Have been told the tales of broadcasters that built there own transmitters and boards for the studios but that’s all before my time.
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