EEVblog Electronics Community Forum
Products => Test Equipment => Topic started by: joeqsmith on August 13, 2022, 01:32:13 am
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Old RCA scope that was uncovered when going through an abandoned building. I wasn't able to find any information about it. Would the case be back in style?
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Who was the photographer? Stanley Kubrick or Michael J Fox?
;)
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Who was the photographer? Stanley Kubrick or Michael J Fox?
;)
Possibly the work of Patterson and Gimlin? :)
WoD
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You can't post 'scope porn pics and not expect us to dox 'er. The war really upended the electronics industry.
I believe I found it as RCA "Laboratory Oscilloscope" Model 715-B 1950. 11MHz vertical, 500kc horizontal. https://archive.org/details/sim_electronics_1950-06_23_6/page/n353/mode/2up (https://archive.org/details/sim_electronics_1950-06_23_6/page/n353/mode/2up)
Tektronix rolled out their 514-D for $950(!) in 1950, or $11,700 in today's dollars.
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You can't post 'scope porn pics and not expect us to dox 'er. The war really upended the electronics industry.
I believe I found it as RCA "Laboratory Oscilloscope" Model 715-B 1950. 11MHz vertical, 500kc horizontal. https://archive.org/details/sim_electronics_1950-06_23_6/page/n353/mode/2up (https://archive.org/details/sim_electronics_1950-06_23_6/page/n353/mode/2up)
Tektronix rolled out their 514-D for $950(!) in 1950, or $11,700 in today's dollars.
I can't believe you found that!
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One did TV broadcast duty at Seattle KING-TV starting late 1940's, surely very expensive in the day. It was apparently kinda dim with the CRT 5VP1 or 5UP1 at 2kV.
modifications pdf pg. 48/68 https://worldradiohistory.com/ARCHIVE-RCA/RCA-Broadcast-News/RCA-75.pdf (https://worldradiohistory.com/ARCHIVE-RCA/RCA-Broadcast-News/RCA-75.pdf)
Weight 350lbs and my old friend 866 mercury vap rectifiers and a couple 807's. That's what I call deflection.
more here: https://antiqueradios.com/forums//viewtopic.php?f=8&t=401613 (https://antiqueradios.com/forums//viewtopic.php?f=8&t=401613)
Interesting is the 50's boom in electronics fueled by TV and before, radio. The post-war. Tektronix incorporated in 1946.
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More good finds. Funny that they are modernizing the scope in 1953. :-DD
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Reading the threads people actually talk about wanting one for their collection.
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I am familiar with RCA's service grade scopes but I did not realize they made a commercial grade scope but it makes perfect sense since they were the "go to" company for early TV transmitter equipment. But 11MHz response with only 2kV accelerating potential must have made for a very dim display at high sweep speeds. And that sweep circuit sounds like more or less a copy of Dumont design common in the early 1950's until Tektronix came along with something better.....and much smaller in physical size. Sounds funny to call 500 series Tek scopes "small". :D