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#32
11-10-2014, 05:37 PM
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Pete 
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#33
11-10-2014, 06:00 PM
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Philco 123...congrats on the find. I added some photos of the knobs and the cover strip from mine. The knobs are clear (yellowed) with gold back-paint and are 1 1/16" wide with knurls on the sides and 1 1/4" long with a D shaft. The cover is 12 3/8" long, 3/4" wide with an opening at one end for a clear plastic UHF channel viewer and cutouts for six knobs.
There is also a thin steel stiffener that goes behind the cover strip to keep you from flattening the aluminum cover strip when you screw it down. If you are gentle, you could live without it. Also pictured is the Philco theory/service book for the set by Donald Fink. Strangely it does not have one picture of the set. Just a few chassis views and one artists sketch of the cover strip. Here is a search page for the book from used book dealers; http://www.abebooks.com/servlet/Sear...vision&x=0&y=0
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“Once you eliminate the impossible...whatever remains, no matter how improbable, must be the truth." Sherlock Holmes.
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#34
11-10-2014, 06:45 PM
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I agree that there is or was a serial # on those sets somewhere. The 11 digit long # that is stamped on the chassis may contain the clue. Although, so far it has not given up that secret. Perhaps the serial # was on a paper tag that has come off on all these existing sets. Does the ETF or Daves set have a tag? -Steve D.
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Please visit my CT-100, CTC-5, vintage color tv site: http://www.wtv-zone.com/Stevetek/ Last edited by Steve D.; 07-28-2016 at 12:08 PM.
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#35
11-10-2014, 07:11 PM
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Lucky that my set was out from the wall to clean the cat fur growing underneath. Mine has the same as Steve's pix but with one little paper tag at the other end of the chassis. Could it be?
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“Once you eliminate the impossible...whatever remains, no matter how improbable, must be the truth." Sherlock Holmes.
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#36
11-10-2014, 07:27 PM
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Calling Bletchley Park! The only thing I can see on the long number is this comparison with some separations;
10 30 73 26 501 My set as run #1 10 30 70 20 604 Steve's set as run #4 The 01 and 04 at the end match the run #'s. Not sure about the first 5 matching ciphers. Maybe a plant #? Starting at cipher #6; 3-month, 26-date, 5-year(1955) My set. Does this line up with introduction of the set? 0-month, 20-date, 6-year(1956) Steve's set. But the 0 in Steve's does not make sense. An Enigma to me.
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“Once you eliminate the impossible...whatever remains, no matter how improbable, must be the truth." Sherlock Holmes. Last edited by Dave A; 11-10-2014 at 08:17 PM. Reason: text
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#37
11-10-2014, 07:34 PM
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I bet those nobs and sheet metal could be duplicated with a 3D printer and a metal shop. All you need is to make a copy of the originals for a template.
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#38
11-10-2014, 07:59 PM
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UPS is advertising 3D printing;
http://www.theupsstore.com/small-bus...Feti7AodLTkA-Q Not sure how they scan and what they print to. The cover is quite detailed with a little checkerboard design etched on the top.
__________________
“Once you eliminate the impossible...whatever remains, no matter how improbable, must be the truth." Sherlock Holmes.
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#39
11-10-2014, 08:46 PM
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Don answered the serial number question in the last post on the previous page: "Philco serial numbers were a silver sticker with black numbers. Usually One or two letters followed by 5 numbers." So it seems that the serial number of Dave's set is D07890.
I recall that we went through this stamped number deciphering in regards to the 48-1000. http://www.videokarma.org/showthread.php?p=3063082 In regards to the TV-123 stamped numbers, I propose to break them apart this way: 10307 326 5 01 10307 020 6 04 10307 could be some code that identifies it as the TV-123 Chassis 326 and 020 could refer to the day of the year of manufacture (1-366) 5 and 6 identify the last digit of the year 01 and 04 identify the Run numbers Just my guess.
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Tim
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#40
11-10-2014, 08:59 PM
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Dave,
Thanks a lot for taking the time to send the pictures of the correct knobs and face plate from your set. The illustrations in Fink's book of color television theory were also helpful. I have heard of 3D printing although have no run time with the technology. I will contact UPS and learn more about their capabilities and constraints. Reproducing the knobs will be tough, but the face plate seems more difficult to fabricate, especially with the crosshatch pattern etched into the aluminum face plate. Perhaps the crosshatch pattern could be achieved by acid etching the aluminum. I"ll investigate further with some 3D printing sources in addition to UPS and report my findings back to the group. Thanks again for everybody's help. Jeff
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#41
11-10-2014, 09:02 PM
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I should have seen the pattern. Tim may be there with few questions. Either way, we are getting closer. The tag is not silver but just white paper. No matter.
__________________
“Once you eliminate the impossible...whatever remains, no matter how improbable, must be the truth." Sherlock Holmes.
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#42
11-10-2014, 09:23 PM
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Jeff,
This is really old school .... but if nothing else is a solution, the old sand cast method will pick up the delicate indentations on the face plate. Check with a metal fabricator. It may cost you a few bucks, but is worth it considering the set you found. 3D printers vary in quality, but you can get a very good reproduction. You have found a very rare, beautiful set, if it were mine, I would duplicate as best as possible, but I would never be satisfied knowing it was not the original until the originals were found. Wish you the best and will monitor this tread to see your progress.
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#43
11-10-2014, 09:42 PM
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for real intricate detail, something called "investment casting" is used. sand casting tends to be a bit rough. If you don't need it to actually be metal, you can use rubber molds from an original,, you can get great detail that way
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#44
11-10-2014, 10:05 PM
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Nice to see one of these at last!
I have a collection of schematics for Philco TV's called Wallace TelAid and I beleive there is a schematic in that collection for the TV123. No picture of the set and I always wondered if it was a Philco creation using a minimum of RCA's circuits. 
__________________
"When resistors increase in value, they're worthless" -Dave G
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#45
11-10-2014, 10:08 PM
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http://www.smooth-on.com/search.php?q=metal+powder A guy made repro knobs for my Colonial Globe radio using that process. They look and feel just like the cast metal originals -- even in heft. I haven't made metal-powder resin repro parts, but I have made repros using ordinary resin and it is not terribly difficult. Phil Nelson Phil's Old Radios http://antiqueradio.org/index.html Last edited by Phil Nelson; 11-11-2014 at 12:00 AM.
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