Timeline for Why is the symbol for "cathode" a 'K'?
Current License: CC BY-SA 3.0
8 events
| when toggle format | what | by | license | comment | |
|---|---|---|---|---|---|
| May 11, 2015 at 15:05 | comment | added | tubes11792 | Cathode being marked with a K started in tube electronics and goes back to the 1800's when the first tube or valve invented was the Fleming valve also known as a diode. | |
| Feb 25, 2015 at 8:05 | history | edited | PeterJ | CC BY-SA 3.0 |
Remove signature / website link etc, not recommended in answers but you can add to your profile instead
|
| Feb 25, 2015 at 4:17 | review | Late answers | |||
| Feb 25, 2015 at 7:51 | |||||
| Feb 25, 2015 at 4:13 | comment | added | caveman | Also, ON semi makes a power mosFET / schottky diode pair in a package: NTLJF4156N | |
| Feb 25, 2015 at 4:08 | comment | added | caveman | Very unlikely. I actually have a book, Physics, Principles and Applications, by Margenau, Watson, Montgomery that has a cathode ray tube schematic with cathode marked as K. (Fig 35-24, pg 519). This book was published in 1953. So, not only does it predate CAD, it likely predates silicon diodes. | |
| Feb 25, 2015 at 4:03 | comment | added | Ignacio Vazquez-Abrams | You're unlikely to convince anyone that the first instance of "K" being used for the cathode occurred as late as 1990. | |
| Feb 25, 2015 at 4:02 | review | First posts | |||
| Feb 25, 2015 at 7:14 | |||||
| Feb 25, 2015 at 3:58 | history | answered | Tom Hausherr | CC BY-SA 3.0 |