Cold Cathode
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New Loglsys CLK12BL2 12 inch Blue Cold Cathode Light $5.19 |
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New Logisys CLK12RD2 12inch Dual Red Cold Cathode Light $11.89 |
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Cold Cathode light tube Sound Sensitivity Control NEW ! $0.99 |
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LOT OF 5 DUAL COLD CATHODE FLORESCENT LIGHTS 10 in/26CM $7.49 |
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Logisys 12 cold cathode dual light kit UV New CLK12UV2 $9.99 |
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12″ DUAL UV-BLACK COLD CATHODE LIGHT KIT CCFL COMPUTER $2.95 |
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TELEVAC Cold Cathode Module 7E/7B 6200-223/227 cc 7B2 $300.00 |
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12″ DUAL UV-BLACK COLD CATHODE LIGHT KIT CCFL COMPUTER $2.95 |
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12″ DUAL BLUE COLD CCFL CATHODE LIGHT MOD KIT PC BRIGHT $2.95 |
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LOGISYS Cold Cathode Light; Desktop light color: RGB $8.00 |
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NIP Logisys Computer Cold Cathode Light $0.99 |
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LOT OF 5 DUAL COLD CATHODE FLUORESCENT LIGHTS 10in/26CM $3.74 |
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LOT OF 5 DUAL COLD CATHODE FLUORESCENT LIGHTS 10in/26CM $3.74 |
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VANTEC SP12CCFL-PR PURPLE COLD CATHODE FLORESCENT LIGHT $2.00 |
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New Thermaltake A2372 Dual UV 12″ Cold Cathode Light $11.99 |
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2 x Red 12″ CCFL Cold Cathode Car Neon Tube Light Lamp $3.99 |
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2x Green 12″ CCFL Cold Cathode Car Neon Tube Light Lamp $3.99 |
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2 x Blue 12″ CCFL Cold Cathode Car Neon Tube Light Lamp $3.99 |
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2x White 12″ CCFL Cold Cathode Car Neon Tube Light Lamp $3.99 |
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2 x Pink 12″ CCFL Cold Cathode Car Neon Tube Light Lamp $3.99 |
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2 Purple 12″ CCFL Cold Cathode Car Neon Tube Light Lamp $3.99 |
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2 Yellow 12″ CCFL Cold Cathode Car Neon Tube Light Lamp $3.99 |
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2 Crimson 12″ CCFL Cold Cathode Neon Tube Light Lamp $3.99 |
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CPS Products Refrigerant Leak Detector – Cold Cathode $211.98 |
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LOT OF 5 DUAL COLD CATHODE FLORESCENT LIGHTS 10 in/26CM $3.74 |
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Dual White Cold Cathode 30cm Fluorescent Lamp $17.85 |
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Dual Red Cold Cathode 30cm Fluorescent Lamp $17.85 |
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DIAVAC LIMITED COLD CATHODE GAUGE CONTROLLER CT-1DA $248.00 |
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Duel Cold Cathode Florescent Light (2 Tubes) $2.99 |
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HPS 421 COLD CATHODE GAUGE MICRO-CONTROLLER $479.99 |
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HPS 421 COLD CATHODE GAUGE MICRO-CONTROLLER $429.99 |
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New LOGISYS CLK12BL2 12 inch Blue Cold Cathode Light $11.98 |
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LOGISYS CLK12BL2 12 inch Blue Cold Cathode Light NEW $11.99 |
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NEW LOGISYS CLK12BL2 12′ Dual Blue Cold Cathode Light $11.99 |
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LOGISYS CLK12GN2 12 inch Dual Green Cold Cathode Light $11.99 |
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New LOGISYS CLK12GN2 12 inch Dual Green Cold Cathode $11.98 |
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LOGISYS CLK12RD2 12 inch Dual Red Cold Cathode Light $11.99 |
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New LOGISYS CLK12RD2 12 inch Red Cold Cathode Light $11.99 |
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Logisys CLK12RD2 12 cold cathode dual light kit RED $11.99 |
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Logisys CLK12RD2 12 cold cathode dual light kit RED $11.99 |
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Logisys CLK12GN2 12 cold cathode dual light kit GREEN $13.99 |
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Logisys CLK12GN2 12 cold cathode dual light kit GREEN $13.99 |
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Logisys CLK12UV2 12 cold cathode dual light kit UV $9.99 |
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Logisys CLK12WT2 12 cold cathode dual light kit WHITE $11.99 |
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Logisys CLK12PL2 12 cold cathode dual light kit PURPLE $13.99 |
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Logisys CLK12PL2 12 cold cathode dual light kit PURPLE $13.99 |
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VEECO Cold Cathode Discharge Gauge Type DG-3 $10.00 |
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Balzers IKG 010 Cold Cathode Gauge – NEW? $185.00 |
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2 x Red 12″ CCFL Cold Cathode Car Neon Tube Light Lamp $3.99 |
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2 xWhite 12″ CCFL Cold Cathode Car Neon Tube Light Lamp $3.99 |
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2 xGreen 12″ CCFL Cold Cathode Car Neon Tube Light Lamp $3.99 |
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2 x Blue 12″ CCFL Cold Cathode Car Neon Tube Light Lamp $3.99 |
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2 x Pink 12″ CCFL Cold Cathode Car Neon Tube Light Lamp $3.99 |
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2xPurple 12″ CCFL Cold Cathode Car Neon Tube Light Lamp $3.99 |
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2xYellow 12″ CCFL Cold Cathode Car Neon Tube Light Lamp $3.99 |
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2 x Deep Red 12″ CCFL Cold Cathode Car Neon Tube Light $3.99 |
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12″ DUAL RED COLD CATHODE LIGHT KIT ULTRA BRIGHT CCFL @ $9.50 |
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12.2″ Cold Cathode light tube 2x BLUE Sound Activator ! $8.99 |
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Logisys CLK12UV2 12 cold cathode dual light kit UV New $9.99 |
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New Logisys CLK12UV2 12 cold cathode dual light kit UV $9.99 |
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Green Cold Cathode 8cm Circular Fluorescent Lamp $8.92 |
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Dual Tri-Colour Cold Cathode 30cm Fluorescent Lamp $17.85 |
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Micro Brite Cold Cathode BR30 E26 GO GREEN!!! $14.40 |
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Micro Brite Cold Cathode A19 CFL $14.00 |
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Logisys 12″ CLK12UV2 Dual Cold Cathode Light UV NEW $5.79 |
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NCC 800-926-5322 120V 2 Lamp Cold Cathode Converter $34.99 |
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2x Red 12″ CCFL Cold Cathode Car Neon Tube Light Lamp $3.99 |
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2x Red 12″ CCFL Cold Cathode Car Neon Tube Light Lamp $3.99 |
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2 Blue 12″ CCFL Cold Cathode Car Neon Tube Light Lamp $3.99 |
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2xPurple 12″ CCFL Cold Cathode Car Neon Tube Light Lamp $3.99 |
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USB port Cold Cathode Line Driver $13.39 |
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Cold Cathode (CCFL) 12″ Extension Cable, Sleeved, NEW $2.19 |
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9 LOT NEW COLD CATHODE FLUORESCENT *BLUE* ASPIRE LIGHT $19.99 |
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Varian L6433-001 COLD CATHODE CARD $119.00 |
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FOUR TESTED GOOD W.E. 313C COLD CATHODE NEON TRIODES $15.99 |
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LOGISYS CLK12UV 12 inch Dual UV Cold Cathode Light Kit $6.40 |
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Thermaltake A2372 Dual UV 12″ Cold Cathode Light , $6.98 |
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LOGISYS CLK12RD2 12 inch Dual Red Cold Cathode Light $6.40 |
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Edwards active cold cathode ionization vacuum gauge pkg $900.00 |
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^ VARIAN 863 COLD CATHODE VACUUM GAUGE-a $80.00 |
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Logisys 12″ Dual RED Cold Cathode Light Kit for PC Case $6.95 |
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SunBeam Cold Cathode Case Lights – Red & Clear striped $5.99 |
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PCToys Cold Cathode Case Lights – Light blue $5.99 |
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DUAL 12″ COMPUTER CASE NEON COLD CATHODE LIGHT GREEN $5.70 |
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LOGISYS CLK12RD2 12 inch Dual Red Cold Cathode Light $6.40 |
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Ultra Dual UV 80mm Round Cold Cathode Light Kit $2.59 |
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Tri-Colour Cold Cathode 8cm Circular Fluorescent Lamp $8.92 |
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Varian 525 Cold Cathode Vacuum Gauge $399.00 |
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Dual UV Cold Cathode Light 12″ Case Mod Kit Must Have $9.99 |
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80mm UV Blue Cold Cathode Fan CCFL FAN KIT CASE MOD KIT $4.99 |
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80mm UV Orange Cold Cathode Fan CCFL FAN KIT CASE MOD $4.99 |
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LOGISYS CLK12GN2 12 inch Dual Green Cold Cathode Light $11.99 |
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Logisys 12 cold cathode dual light kit GREEN CLK12GN2 $13.99 |
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Logisys CLK12GN2 12 cold cathode dual light kit GREEN ~ $13.99 |
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LOT OF 5 DUAL COLD CATHODE FLORESCENT LIGHTS 10 in/26CM $3.74 |
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LOT OF 5 DUAL COLD CATHODE FLORESCENT LIGHTS 10 in/26CM $3.74 |
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LOT OF 5 DUAL COLD CATHODE FLORESCENT LIGHTS 10 in/26CM $3.74 |
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LOT OF 5 DUAL COLD CATHODE FLORESCENT LIGHTS 10 in/26CM $3.74 |
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LOT OF 5 DUAL COLD CATHODE FLORESCENT LIGHTS 10 in/26CM $3.74 |
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DIAVAC CT-2P Cold-cathode Gauge w/ C-1A Head $599.00 |
What is a cold cathode?
And will a 12″ cathode fit in a xbox 360?
Prof John,
You said, “…not independently heated.”
No, not heated at all. I bet you were thinking of the difference between a directly heated cathode (the cathode is a wire, and it is heated by electric current flowing through it) vs. an indirectly heated cathode (the cathode is a metal can surrounding the hot wire, and it is heated by radiation from the wire.)
A cold cathode is not heated at all.
Kris,
You probably are asking, not about a cathode, but a cold cathode fluorescent lamp (ccfl). CCFLs are widely used as the back-lights in LCD computer monitors and LCD television sets. 12″ long would be a typical length for a CCFL.. A CCFL has two electrodes sealed in a glass tube that contains a tiny amount of mercury at low pressure. Electricity flowing through the mercury vapor causes it to glow.
The electrode that emits electrons is called the cathode, and the electrode that catches them is called the anode. Getting electrons to leave the cathode can be done in either of two ways. It can be heated (as in conventional fluorescent lamps) to a dull red glow. Then the atoms of the metal will be so energetic that it will be surrounded by a cloud of excited electrons. The other way, is to operate the tube at such high voltage that valence electrons are literally ripped from the metal by the elecric field. That’s how it’s done in CCFL tubes.
Cold Cathodes & Meteor Lights Installed in Antec 1200 with Custom Switches
Tags: cathode, ccfl, cold, cold cathode bulbs, cold cathode cfl, cold cathode compact fluorescent, cold cathode fluorescent lamp, cold cathode gauge, cold cathode inverter, cold cathode kit, cold cathode light bulbs, cold cathode lighting, cold cathode lights, light, lighting