#16
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Last edited by andy; 12-07-2021 at 01:58 PM. |
#17
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I have an all-glass non-faceplate 21 incher out of a test jig which has a type # starting with 18__. I've been told the test tubes were factory seconds; maybe the 1800 series designation in general was used on commerical/industrial equipment.
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Bryan |
#18
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Quote:
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#19
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My TM-21D manual specs a 21FJP22 tube. As soon as I get three neighbor kids and a block and tackle to move mine from the corner it is in, I will look at the tube.
Dave A
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“Once you eliminate the impossible...whatever remains, no matter how improbable, must be the truth." Sherlock Holmes. |
#20
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No.
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julian |
Audiokarma |
#21
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If anyone has a TM-21D and would like an original RCA manual for it (MI-40226-D) they are welcome to contact me. I have one I'd like to give to a good home.
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#22
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Tm21
I can use that book as I have two of these monitors and lost mine in the fire. Please contact me! Julian Burke 865 567 eight nine six zero.
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julian |
#23
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We had 3 of the 21" color monitors in our color remote unit at KTLA used as a control room for our color studio. This was in the 60's. Still used them after rectangular monitors came in to use. This allowed directors to make sure images weren't cut off on all the roundies still in use. Also many commercial producers would request an RCA color monitor on the studio floor to check the quality of the color image. This as opposed to the consumer sets w/modulators we normally used.
-Steve D.
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Please visit my CT-100, CTC-5, vintage color tv site: http://www.wtv-zone.com/Stevetek/ |
#24
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That monitor was a very well designed monitor. We used one on a TRT1B RCA VTR, which we converted to a high band system. That TRT1B was wonderful with its heterodyne color system, for wonky color tapes. We owned the only High band TRT1b in the USA
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#25
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A 1957 advertisement.
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Personal website dedicated to Vintage Television https://visions4netjournal.com |
Audiokarma |
#26
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Does a schematic exist for this monitor? They mention stabilized circuits using feedback, and looking at chassis pictures on the ETF it is clear 6AS7/6080 power regulator tubes are employed (likely for B+ regulation)....I'd really like to see what they did in this set VS their consumer offerings to make it more stable.
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Tom C. Zenith: The quality stays in EVEN after the name falls off! What I want. --> http://www.videokarma.org/showpost.p...62&postcount=4 |
#27
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This should be readable. See link: https://visions4netjournal.com/2017/05/10/1661/
http://wp.me/p8dob6-qN
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Personal website dedicated to Vintage Television https://visions4netjournal.com Last edited by etype2; 05-10-2017 at 06:03 PM. |
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