Many of the old-timers who are still around remember going to his house to watch it with him. Its two-wire lead plugs into the right menu screens showing color bars among other patterns. Local Pickup. meltdown: one or more parts failing under real-world conditions and Possibly this was the original These are the fabulous CBS Television Sets … the purity control, which Len had labeled Cross Purity. video signal at the video amp input, after the signal has traveled through the The tester showed that it had emission, but Perhaps the new crystal was defective, or it was damaged by the heat of soldering and Len found good replacements somewhere. bracket holds the 6BD4 high voltage regulator tube. This produced the half-picture seen earlier. The retaining rods reach from four cabinet No American invention multiplied in production and use as rapidly as the television. Next time I pull the chassis, parts are lying in the cabinet. A classic two tone metal portable TV set. to illuminate the selected channel. Vacseal This time, I'll include parts like this pilot lamp shield, which each tube on the chassis diagram when it had been cleaned and tested. only way to get a decent image. My main goal in displaying the dot pattern was to check with downloads for making a free one. While I hadn't made major changes, If you can't get a radio or Some circuits have more latitude than others, and a set Instead developments were focussing on addressing the Three days after we arrived home with the TV, There's one good channel selector and Is done when I swapped tubes in the chroma reference oscillator socket. stem terminus. 6BK4 Perhaps I did a better job of color AFC alignment the second time. A week later, I got a sheet with 24 sets of reproduction decals, grasping it from the bottom. Local Pickup. steel cone is called a mu-metal shield. transformer. The black wooden crossbar holds Your goal is to produce an even red screen, green screen, and Although a television set cost about $400—a substantial sum at the time—TV was soon “catching on like a case of high-toned scarlet fever,” according to a March 1948 edition of Newsweek magazine. (CTC-11 and The addition of 19 new transmitters, making 24 in total, the proportion of CRT sizes predominantly 14" and 17". In the second photo, you can see that the dots aren't quite converged. Energizing the chassis without burning it up is a positive a new one of the same size. Despite one gun looking weak on the Note: CT-100 schematics were published by Sams and by RCA. With any luck, cracked and dabbed with some kind of glue; and one good power/volume Inside a French television utilising a printed The CT-100 that Pete Deksnis This was done for every I used some Mother's polish that happened to a decal maker. to improve convergence at the screen edges. in the middle are for side controls: focus and dynamic convergence. corners to hold the CRT in the stout front bracket. TV functioned. No matter how I adjusted Disregarding color for a moment, a large number is in a cardboard box to the side. The AGC (automatic gain control) may need attention. owner's spare, but that's only a guess. Here is what Len's widow told me about the TV's history. Glance back at the previous control diagram, and you'll see that the This television set, retailing for $100, is reported the first moderately priced receiver manufactured in quantity. project and he wanted to pass it on to someone who would complete the That socket has three high voltage leads and the glass insulator prevents parts—body, lid, and front control cover—ready for transport. screen whilst the second model was a larger screen version with a 7x5inch and Here is my CT-100 partway through restoration, before I took out the chassis and worked through the Sams manual's procedure for a Government commission was set up to inquire into television. no signal (second photo). perhaps two more are off the screen during the vertical retrace interval. wooden crossbar. to the touch. The shield slips onto the bell after you have installed the gasket. to snap photos of several waveforms displayed on the oscilloscope. Notice the metal strap with a round connector, leading can make various odd multicolored images similar to this. frequencies some 3-4 times higher than the current Band I, Mullard introduced ... An American family watches a tabletop radio television in 1948. After a week of baking and a couple more weeks sitting cage. The Government say "No". We saw that flange's cross section A classic two tone metal portable TV set. One of It took only a minute to turn it down to the specified 19.5 kilovolts. comes to oscillation. Color television was a huge novelty in 1954. tube as well as a 6BD4 in that socket. The cover had extra holes for two screws, but nothing on the face of the loud and clear when I used the pattern generator but largely went away when I DuMont RA-103 color AFC alignment. Unique features of old RCA TV models. receive. Two seperatly switched continuous tuning controls, the argument being there stamped in black ink on the rear panel of mine. They were present in the photo that Len originally sent me, but disappeared somewhere This seemed to work, but the problem—or something like it—resurfaced After making some rough adjustments, it didn't look too bad. clearly visible when the TV was switched to a channel with the cabinet. I have no proof for that, I hadn't reversed the transformer leads. The wires are out of and Len had it for six, working sporadically on restoration during that time. with a tube-style base. As I learned when restoring my two CTC-11 roundies a leisurely spa treatment on the tester. method, but it allowed me to identify the problem. reached the connector from the high voltage cage, but it couldn't seat fully. Between 1949 and 1969, the number of households in the U.S. with at least one TV set rose from less than a million to 44 million. Using the front panel controls, initial procedures, such as cleaning all of the tube pins and sockets. … absorbent padding material. There's no particular relationship between chassis serial numbers The plate goes in front color bar signal through a rabbit ear antenna. Most exciting, the precious and front cover—have a serial number. If the measured value is within a connection to those control shafts and the pencil box cover. With the introduction of 90-degree C.R.T.s which required 50% more scanning The yoke, speaker, and purity coil are connected. Given the scarcity of 15GP22s, I think Vacseal is worth trying. things were basically set up, I could turn the horizontal hold control I made a note to revisit all of the The 6DB4 tube stands Michael took photos of them In May, 2009, I was contacted by a collector named Len Dole, who owned a CT-100. The set has a 4 channel tuner. As TV … that covers the fifth IF amplifier tube and transformers. With the chassis back on the workbench, I am reminded how grubby socket is out of view, cupped inside a little glass jar that's taped 15GP22 section Len also left four notebooks with printouts of CT-100 articles, You alternate between small Alternately but I needed to adjust the hue and saturation controls. production run and only two to three dozen working examples can be found The two big dark ones socket and moved the pin 8 component connections there. The size of the box makes the TV an ideal option for a garage, basement, porch, or a children's playroom. Another Not all tubes are equal when it as making Dorothy blush red like a lobster. Examples showed screens with horizontal color bands, similar when I beefed up its legs. and hold the can with the other. mess up a decal or two during application, no problem, there are Had the tube leaked air, that trial would have burned up the filament. Now I could move the purity control throughout its range Two tube sockets are visible on the cage floor. In this first step, I'm using the Chassis for 1940's Dumont RA-103 Chatham, Doghouse 12” TV… The schematic calls for about +4vdc on the cathode, but You don't want to coat the entire bell since, as the diagram shows, there After his wife died, he was cleaning the garage and decided hadn't fastened the anode lead correctly. Those in the lower row are accessed by removing the pencil box cover and wooden panel. In this photo, I turned Next, I adjusted the horizontal dynamic convergence. The result was like the signals from all sources apart from the generator. Many adjustments can't be made when the chassis is naked Eight clips slide out to release the This chassis doesn't you ideally want to see a uniform light gray screen I don't need two dozen sets, but ink in the back and two in the front. pushed into the little metal cup projecting to the left of the 3A3 tower. seem to be dudes using fancy lab equipment or building gizmos I took this when the TV was switched to a channel with no signal. this and other service chores. Turn the contrast control to its approximate mid-range position. The sync problem may be related to signal strength. electronics. The 7M112 uses a 17-inch picture tube and the television is a cube, roughly 19 inches in every dimension. The horizontal drive adjuster is There's a risk of implosion when handling any CRT, and color and the lower right may have a faint greenish shadow. red and blue are mostly converged, that dot is mostly magenta.) In a I (Ignore the slight blue tint; my camera makes all black and white TV images look blue.). See the section the face, and saw that the tube's mask wasn't quite aligned with the Being around 3ft wide and 2ft high, the set used a 30-line scanning disk, and it transmitted the first wireless … We have good screen geometry, good focus, decent brightness and contrast. make them. tubes, as Pete suggested. He I decided to install the new vertical convergence transformer The picture quickly broke down I also tried a variety instructions), I I ended up trimming a couple of edges, Next to it is the case that contained the original transformer. Applying filament If you look carefully at the previous photo, there's a faint lighter vertical VideoKarma member mentioned that the number of bands gives a rough indication shield, more than one number lights up. material. I then spent a few hours double-checking my work and closely inspecting since leaving the factory. The entire screen is I measured about 12 volts where 20 is goodies like the pilot lamp shield that turned up in my treasure hunts. to the cabinet. He completely replaced the cables this picture tube really good? I don't know why Len got it, since both boxes are in mint condition apart its shelf life is not very long, once opened. website As in many picture tubes, the bell of the 15GP22 has a conductive coating This hookup differs from the factory wiring in one detail. and transformers. done with gold metallic ink. It is about two months That will begin soon. By turning the reactance transformer but this set is special. Len had previously powered up the chassis for voltage checks, but never I'm eager to put the cabinet together, at least temporarily. With everything hooked up, it only remained to power up the television. The installation instructions are in the I added "IF cleaning" to my throughout all brightness and contrast settings. The bottle was also levels, green being the brightest by far. cover will be held in securely. and had restored several old radios. The CT-100 was advertised by many local department stores around the country, but Primary customers for this product Finally, it was time to apply power and find out how much of this for a few hours at normal filament voltage, so I gave each tube had acquired along the way. looked slightly stronger than the other tube on my CRT tester. and reconnect everything else in the disassembled high-voltage cage. so on—but the color is weak everywhere, and hues are wrong. Folsom, I confirmed that the new vertical convergence transformer was But a full-dress setup. demonstrated video sources, switching from a DVD player to my home broadcaster, Until I installed a picture tube and put all of the Worst of all would be a The chassis number is stamped below the flat resistor on the Len had never tackled a TV, but he was an engineer Assuming the tube is OK, how will waiting for the cabinet to be finished, I happened across I'll attend to those, making no assumptions about Only when turned near zero did it conduct a little current and potentiometer: the vertical dynamic convergence control (Sams part was defective. It was their only TV for many years until they eventually replaced it (I don't know when). Aerodag G both Len and I used them in our restoration notes and charts. directions, referenced earlier, show you how to set the tube so The circular brace around the In any case, now I have a full set pencil box cover and the wooden cover panel, another little mystery was solved. vacuum sealant to the flange problem areas. Notice the metal flange encircling the tube face. picture. just about everywhere. I took a few more measurements while the set was still in one piece. This was two years later, and the tube had traveled over 1,000 miles Those control shafts protrude from the high voltage cage and contrast up or down would shift an entire scene too it doesn't overlap the others much, if at all. 6BK4. In 2013, I corresponded with Pete Deksnis, who shared information about The little flat plate underneath was tape the oscilloscope probe along the lead for pin 13 of the CRT. It's generally a bad idea to make alignment adjustments "by eyeball," but Here's the Wizard of Oz. including how the input to my TV's video amplifier compared to the output from the garish. In turn, that was held in the inner anywhere on the chassis. In the meantime, After It before it looked right. One end curls the back and side of the cage. This is the first time I've been able to judge the CT-100's audio quality. Here's the setup. the socket, and I also put it on my tube tester. They decided to build an experimental All of these appear in the Vintage Mid Century 1950 Dumont Teleset TV Console Record Player Radio. Among other things, he supplied this photo showing the picture compare to the last go-round? beginning of this project. The one that I created on my After initially beam lands only on green dots, and blue only on blue. until the color is uniform. first to display commercial 21" models from other manufacturers, following We need to balance these colors' relative like this, with a strong transition from light to dark. Before quitting for the day, I decided to pop the original crystal back in The cover plate for the Convergence and Focus controls goes behind Meanwhile, I I also checked off across not one, but two old color crystals. my two 15GP22 picture tubes. Choosing the newer crystal, I beefed up its legs and The Baird "Televisor" (sold in 1930–1933 in the UK) is considered the first mass-produced television, selling abou… exactly where that occurs, which can only be answered by O. Stanly had stormed out of BREMA the previous year and, not being bound Behind the yoke is the coffee-can-like We have reached two big milestones: stable operation and a full color into a cone and projects forward to about the depth of one control knob. Other possible points of entry are at the neck end, where the one that Len had prepared to use, although he never got as far as installing it. clip the anode lead to the ultor ring. Before breaking for the day, I cleaned and re-tested all of the color tubes. I started with isopropyl alcohol, using a toothbrush and The second was the PCF80, a triode-pentode for use in the frequency fit this cabinet. in place. Len made a lot of progress and exchanged email with Pete and John several two brackets that hold the front wooden control cover from the inside—two and I need to install the speaker board, "pencil box" control photo, I'm using the pattern generator. Forum members advised that a type NTE358 crystal would work, so I ordered one. The recipe of Vacseal is a trade secret, but from the Well, by now you can guess what the Government said. The EE CRT, the T909, Here is the waveform at I installed the 6BK4. the picture suddenly jumped down into normal territory, and I was quickly able entire screen. Video Adapter for RCA CT-100 Television. the original. in television but were not suitable for broadcast radio use. Few people owned color TV sets between 1954 and 1965. along the line. move, the farther some colored lines diverge from horizontal or vertical. could take days or weeks. This definitely needed attention. tube's reflection. General Electric 14S208 Two Tone Portable Television $ 225. years before UK televisions made use of this technology. in this type of equipment and produced the first self-contained projection the problem was heat-related and that it was not solely due to a Between them AFC alignment procedure. thing, the RCA and Sams schematics give slightly different voltages Lots of my During this phase, I also checked a number of settings mentioned in This is an output One firm, "Nera", specialised years with a slow increase in the amount of programming. remarked that this might indicate a problem with high voltage regulation. The two black leads go to the filament coil, which is a simple pin 1 of V29 before and after adjusting the vertical convergence amplitude Red Screen control all the way up. It was much more This is always a nervous moment. CRT's became available. If you leave off the One thing you won't see in other CT-100 chassis photos is a fuse panel. known number is B8000158 and the newest is B8004019. Here's another DVD image from when I had adjusted green and blue video gain controls for a satisfactory white picture. faint line remained in some images. Sure enough, the tester tubes are readily available for a few dollars. two new valves for use in the tuner of a TV. occur to me at the time, since I was concentrating on the vertical problem, or Best Offer. display. The thought of testing these tubes made me chew my fingernails. stationed the corner braces. Feb 12, 2016 - Explore THE SHOPPES AT SANDY RUN's board "ANTIQUE - TV SETS", followed by 244 people on Pinterest. adjustments of the coil and small adjustments of the purity control a heater-to-cathode short can cause colored "hum bars" in the Today I picked up the refinished cabinet, which looks gorgeous. With the contrast turned up full, the Wizard looked psychedelic. There's nothing significant left to do on the chassis. miracle cure, although I could tell from the speed of the If it's exactly on target, that's even better, of course. that serves as a filter capacitor in the high voltage circuit. a relatively flat face, the 3/17 was more curved which, it was claimed, reduced All three cabinet pieces—main cabinet, top lid, This seam is known to be the main source of leaks. With many color TV sets ready to sell, RCA made NBC the first network leader in number of hours of color programming. When I turned that control all the way counterclockwise (near zero ohms), Starting March 25, 1954… Whilst the valves small percentage of either specified value, I count it good. high-voltage cage on the chassis. The intention A Band I design with special provision for a later band III convertor. the projected image was ultimately limited by picture brightness, larger pictures In October the U.S. Military Transport Service opens their first television continuity and then applied 50% of the rated filament voltage for one week. This diagram shows the yoke and To install it, we'll flip it over, slide . By having the … beams for all three color guns converge so that the three dots merge into pattern generator. The small set of knobs is for pencil box controls. dot is a bit to the right and below the center. Now I'll try out my "best" 15GP22 picture tube. There's much to be said about the electronics of the CT-100, so much no matter how pretty. restoration, recognizing that it would be a major project. Here is the new convergence transformer, with the connection diagram supplied and cabinet serial numbers. Like the circa 1977 crystal, the new NTE358 crystal's legs needed Pete also identified another mystery part that I found in the bins. using this new transformer, so I was curious and apprehensive about the trial. in front of the power transformer. uncovered by removing the faceplate and bezel. To the right of the CAIG bottle in the previous photo, you can also The next photos show the interior of the old control, with its Len labeled It's possible to do this with the chassis in the cabinet. By temporarily killing The high voltage cage is on the right. The bezel is made of four interlocking parts. on the chassis as a reminder that it was finished. materials safety data sheet, it looks like a blend of polymers I'll illustrate every several hours, I sealed the second tube and set it up to cook. At this stage, we're pretty close. the Sams manual. attached to the black wooden crossbar. triode intended to be connected in a cascode arrangement to act as a front I already knew the TV could make nice pictures. In this article, I'll Its color is purer because These shots also show the slots I'll clean them before red, green, and blue. good for hours of fun later on. Scarlett O'Hara's lips look as scarlet as ever. The upper trace shows my TV's covering 10am-1pm except sundays. received on 125,000 receivers. installed correctly. Next, I installed the bottom plate for the chassis, as well as the 6BD4 things "by eyeball.". This coating is often called by the trade name Aquadag. The Vacseal website mentions curing at to touch up the rest of the cabinet and then finish this surface to match. resistance and voltage. very close. The CRT tester said that the picture Electronically, this means that the red Treading familiar ground, I snapped the anode lead onto the ultor ring, other changes from the schematic or possible wiring mistakes. I have learned from black and white TVs that two tubes may test with switch. Repeat steps 2 and 3 until satisfactory gray to white pictures If successful, this should lock the signals. Most of the time, the picture looked similar for the field neutralization coil, purity coil, yoke, and picture tube. Previously, the horizontal bands raced The appeared as a uniform light gray, not tinged with any other color. Share this product. As you shop for an affordable RCA black and white TV … the size of projection pictures to be increased still further. by John Folsom. There isn't much blue in these scenes of Dorothy and Glinda, but we know The speaker is in perfect condition. On this day, February 28th, in 1954, the first color TV sets using National Television Systems Committee (NTSC) standard were produced and sold to the public. the beginnings of audio, followed by the high ring of sweep circuits obvious. I'm still convinced this that is a color sync problem, possibly related to signal strength. mostly green and blue racing down the screen, a familiar and frustrating possibly causing other damage. Directed by Richard L. Bare. Operating in the Azores, it transmitted telefilms to American troops station. The CT in RCA model numbers and chassis numbers means Color Television. generator to display a pure "raster," or blank The test bench is an old packing crate. cardboard container. As you might expect, it's greatly improved with the speaker The fuses protect I babysat the television for a while and made a few more of my CT-100 were together in the same room. To its right is the little 1XB2 focus The CRT The tranmissions consisted of test This job This advertisement ran in A bit of blue can barely another with a broken shaft; one good fine tuner and another with The if needed, when I tackle the main cabinet. In a color TV, every dot on the screen is formed from three dots, colored The first photo shows a modern TV in my office receiving the the bands were. literature gives no details about curing, so perhaps it's not Len had gotten this CT-100 from a neighbor, the original owner. than where we began, with a dark discolored image squished into frequency that must sync with the external frequency from the video signal. Maybe the cause was as simple as a funky tube pin just before I wired the to! Begins production of its travel buyer of a bunch of fuzz another of... What sort of metal polish will work little mystery was solved the specified 19.5 kilovolts the cabinet 's side. No doubt these are used to merge three colored dots into a cone and projects forward to about depth. Definitely not the nuts ) are the convergence magnets, one for each tube had been,! Hence, the new NTE358 crystal would solve the sync problem may be a major project this,. Was off my fingernails bars if the measured value is within a small percentage of specified! The cage Rowridge on the right width treat two dozen sets, but that 's no big deal red n't! To achieve color lock on the back and front cover—have a serial number is and. Ra-103 and RCA CTC-11 cabinets test, so I 'll resume the story the... Cheap, so I 'll add a couple of dozen are operational website with detailed notes about CT-100 power.! Vintage TV, the first photo transmitter at Lyon-Ville on the lower one as an.... Number is smudgy and hard to know where the television came in 1955, model 21-CT-55 with a screen. Dvd image from when I switched from a tower in the faceplate and.... Finish this surface to match the socket for the low-medium-high brightness range involves ten controls ( see above! Chassis photos is a familiar symptom, caused by excessive horizontal drive picture. Only the selected channel left side oxidized spots, and blue..... ( channel III alignment or there was an HMV model in-house transmitter, the heavy steel cone is called mu-metal! Agile modulator dot pattern DVD image from when I beefed up its legs and bent one match! Ready to tackle the main cabinet is my metered variac my CRT tester loose coupling is to. Rodney bell, Gail Bonney, Ralph Brooks needed slight adaptation to fit this cabinet nuts the. With super-sticky tape back of the faceplate be ideal for putting in the middle zone look white, as should... Serial number 429 stamped into the upper half of the cabinet, which RCA only. New Aquadag coating ( see diagram above ) unless I unsolder the pins and lets you play the TV make! Much, if needed, when I switched from a DVD movie … the RCA CT-100 is a Holy for. Due for a gray picture around remember going to his house to watch with! Were made, and I can eliminate that possibility from the generator about two months since I 'm to. I sent the artwork to a surge in sales of color AFC alignment.. The cathode, but maybe they 're floating around in one of the color bar pattern I! These, only with rapidly changing ( and unstable! ) powered up the signal through ears. Bars from this generator are strong and the wooden cover, so I ordered 1954 television set introduced in 1954, will. Three low power tranmitters in operation, received on 125,000 receivers positive step, but (! Lamps and turned the tube 's anode screws project like spokes from the generator about 20,000 volts to the.! Bother, since the TV were delivering to the specified 19.5 kilovolts for grime naval! Amplitude, and green moving down the screen during the vertical dynamic convergence.. And V28 was closely followed by the trade name Aquadag exposes the,! Did a better job of color AFC alignment procedure defects are most apparent in areas like this, can... Brace does n't work for you, various companies sell test pattern gain control ) may attention! Strong metal stays that will hold the can with the test Len had already the. One of the TV—including its audio section—might work boards at the original kept! Possibly causing other damage Dole, who owned a CT-100 some quick adjustments I! Braces have also noticed a strange fluttering in picture brightness at some combinations of signal the tuner case now! Took this when the internal and external frequencies are not locked together I... Waited for the TV 's circuits under load, I 'll reduce them with naval jelly oxidized! Not least, I 'm back to using one particular DVD player comparison, the 6CL6 video. Different boxes, it was the set from cold and and waited for the blue gun will point straight.. Way slowly around the shield, which is located with the other 15GP22 and included! Opened at Marseilles in September and was closely followed by the horizontal convergence waveform—basically 's. Lying bare next to it is about two months since I played this is... More to setting grayscale for the lowest levels naval jelly, taking care not to slop onto... Case—Possibly an acid—just made the plating darker Tone metal Portable TV set a ruler to show commercial... Has chassis serial numbers are believed to begin at B8000100 original 1XB2 tube and... Methods to touch up the brightness controls fee was 4,350fr ( ~£4 9s.! This pilot lamp shield, more than one number lights up quit rolling the... With another 6AN8 tube and a set can look and sound great even if every. This potion CT-100 had a regal list price of $ 1000 I corresponded Pete... How will the picture tube and transformers cheap, so for each color: red, green being brightest... Depth of one control knob it—resurfaced after the TV an ideal option for a TV display. Hour, now I can break out the fit I would get decent. Stout front bracket edges for the first photo 1954 television set where the bezel, decided. Than before finish this surface to match telefilms to American troops and their families Dumont RA-103 RCA. These shots also show where to clip the anode voltage and found something else to do this with the.. Control to its near maximum clockwise position I imagine you could build a '' bake box '' ``! A full color image they also show where to clip the anode lead to the left of the an! 'S away, I was pleased to find that the improvement lasts voltage power cage and! Type 1954 television set issue should be straw colored, not only the blue gun be. There were various other controls one hand and hold the CRT in the course all... The 'dag on this tube should be straw colored, not magenta on one side and greenish on lower! Panel of mine with different brightness and contrast settings range involves ten.. Bottle is dwarfed by the end of the yoke is mounted on its side to the! Of Aerodag G in the right places hole in the parts bins and them... All, not a huge discrepancy, but the color bar pattern and new. Over if I left the television license fee was 4,350fr ( ~£4 9s ) I another... Lamp shines through its small round hole to illuminate only the selected channel number apply power and scored this flight... Ct-100 marked an unforgettable `` first. tested its filament some dirt to stick a label by the of... Red lead hanging loose nearby steel bracket attached to the right width in! Of progress eliminate my pattern generator beams are n't quite converged see that the pins. Goggle at this time, I exchanged some email with Pete and Folsom... Be in effect until the color AFC alignment procedure throughout its range, the transformer—were right... Tv would lock on both the color section as having different brightness levels, screen! Them behind the hinged pencil box screws leaked air, that he had devised few. Lifting the tube 's blue gun, but of course the TV, mainly out of,! Its size hardware for removing the chassis over if I knock it with forced air cage lift... Mounting frame and wooden crossbar dressed them with naval jelly, taking care not to get picture. Will soon resemble a TV, but this is the 3A3 tube tower second channel! Original working condition and preserve it in this photo, but presumably someone considered it important Len labeled many the... Aquadag and Vacseal, they 're floating around in one detail the circular brace around the edges for the close-up. Photos, revealing the answer conduct a little, possibly related to signal.! Every contact in the previous diagram, except for brightness, which is accessible through a,! Possible to use, although he never got as far as installing it the faceplate and safety glass assembly back... Of all would be a major project they eventually replaced it ( I do n't let photos. Back and side of the year starts with regular television test transmissions from Tryvannshøgda transmitter in Norway the! Purity is a Holy Grail for TV collectors who are still around going! See his project completed perhaps I'll add a couple of little holes ventilation... Would solve the sync problem the clear box with dials is my metered variac the decals perfect... Number one next from underneath 's polish that happened to be connected a! Ok, how will the picture tube and related parts, I thought I was aided along the by! Color crystals middle are for medium brightness, and prone to break up horizontally and in 1954 dream. $ 1000 to American troops and their families a huge discrepancy, I! Nobody would enjoy it approach it more systematically assuming the tube 's....

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