![]() The coating resides atop the cathode cylinder, whereas the filament resides inside the same cathode cylinder electrode. ![]() For proper conversion/activation of the coating, increased voltages are necessary as high as 13 1/2 volts. The filament produces more than 1,472 Degrees F of heat at 6.3 Volts, 600 Milliamps. This base will provide easy electrical access from the chassis to the elements of the gun.įilament, a wound tungsten element (much like an element in a light bulb) coated with an electrical, non-conductive coating. For external use (NOT under vacuum), soft copper wires are extended from the bottom of the glass wafer (to which a Bakelite base will be attached in a later operation). Other stiff wires supply a base for connections to the components. The internal connections consist of thick, stiff wires attached to supporting glass, and 2 or 3 rods (depending on gun type), which hold the gun components rigidly in place (vital). Glass Wafer with encapsulated wires, for external/internal access to the gun proper.Liquid paint, inside conductive coating also known as Aguadag or DixonacĮlectron gun Parts of an electrostatic focus electron gun (in order of sequence).Electron gun, with associated components see Electron gun below.Glass bulb also known as bulb, tube, or CRT.41 SPECIAL MANUFACTURING STEPS, REQUIRED TO PROCESS METAL TUBES, IN ADDITION TO THE NORMAL CRT PROCESSINGĬomponents of the picture tube (CRT).39 #22 DYING, (almost dead), TELEVISION TUBE MANUFACTURING INDUSTRY (circa 1980's).37 MAKING THE CRT “IMPLOSION-PROOF” (LAMINATING). ![]() 36 "BUFFING", POLISHING THE FACE OF THE FINISHED CRT.35 ASSESSING THE POSSIBLE LIFE OF THE CRT.33 GETTING RID OF PARTICLES WHICH MAY BE ON THE ELECTRON GUN PARTS.32 ACTUAL AFFIXING OF BASE AND “AGING” OF CATHODE COATING.31 LIFE-CYCLE OF THE CATHODE COATING/CRT.29.2 SEPARATING A PROCESSED TUBE, FROM THE VACUUM PUMPS ( TIPPING OFF ).29.1 CONVERSION AND ACTIVATION OF THE CATHODE-COATING:. ![]() 29 PROCESSING THE TUBE (CRT) AND THE CATHODE COATING.28 HEAT TREATMENT(S) OF BULB AND ELECTRON GUN.27.1 TYPES, COMPOSITION, LOCATION and FUNCTION OF VACUUM PUMPS.27 "PUMPING": PUTTING THE TUBE UNDER HIGH VACUUM.26 SEALING-MACHINE DESCRIPTION AND PROCESS.25 PREPARING FOR THE ACTUAL SEALING OPERATION.24.1 VISUAL INSPECTION OF ELECTRON GUN, BEFORE SEALING INTO THE TUBE NECK:.24 GET RID OF ALL TRACES OF LACQUER IN THE TUBE INCLUDING THAT, DEPOSITED ON SCREEN:.23 PLACE TUBE UNDER VACUUM TO APPLY ALUMINUM OVER THE WHOLE INSIDE OF THE BULB.22.1 COAT THE INSIDE WITH AN HIGHLY-ELECTRIC, CONDUCTIVE COATING:.22 WASH AWAY LACQUER IN ALL AREAS OF THE INSIDE OF THE BULB, EXCEPT THE SCREEN:.20 PREPARING SCREEN FOR LACQUER DEPOSITION FOR THE ALUMINIZING PROCESS:.19.3 FORCED-AIR DRYING OF NEWLY-DEPOSITED PHOSPHOR COATING ( SCREEN ).19.2 PHOSPHOR DEPOSITS ON INNER FACE OF TUBE:.19.1 INTRODUCE PHOSPHOR SLURRY INTO BULB, USING THE THISTLE TUBE.18 PURE WATER, REQUIRED FOR DEPOSITION OF PHOSPHOR, IN PICTURE TUBES.17 HOW THE TELEVISION PICTURE TUBE (CRT) IS MANUFACTURED:.16 ULTRA HIGH DEFINITION SYSTEM ( UHD ).13 MANEUVERING, SHAPING, THE ELECTRON STREAM (BEAM),“DRAWING “A PICTURE.11 INTERLACED SCANNING, 525 HORIZONTAL LINES OF INFORMATION.6 REPROCESSING OF USED CRT'S, or in, TUBES WHICH FAILED IN-PLANT.5 HOW TELEVISION IS PROVIDED THROUGH THE ELECTRON GUN.
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