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| Blew Up My First Oscilloscope!!! |
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| Wolfgang:
As there is no crater in your desk its probably a lighter case. I would bet on wearout rather than misuse. >:D |
| HalFET:
--- Quote from: PixieDust on February 27, 2019, 11:10:21 am --- --- Quote from: VK5RC on February 27, 2019, 11:09:42 am ---Don't forget Tektronix's excellent fault finding in a oscilloscope paper - from the 70s https://www.sphere.bc.ca/test/tek-parts/troubleshooting-scopes.pdf&ved=2ahUKEwjDm-CG49vgAhXJfH0KHRmXD4wQFjAGegQIARAB&usg=AOvVaw33-ERYv-GmqJm7WWiDgvoo --- End quote --- That link doesn't work for me? --- End quote --- Try it without the "&..." part: https://www.sphere.bc.ca/test/tek-parts/troubleshooting-scopes.pdf :) |
| lordvader88:
I just learned what RIFA caps are myself, and I have a Tek 2430A scope. I had it apart before, when I knew a lot less. Soon I should take it apart again and have a nice look around. Same with my Tek2215 |
| tggzzz:
--- Quote from: lordvader88 on February 27, 2019, 03:42:00 pm ---I just learned what RIFA caps are myself, and I have a Tek 2430A scope. I had it apart before, when I knew a lot less. Soon I should take it apart again and have a nice look around. Same with my Tek2215 --- End quote --- Those delayed action smoke generators are in many many pieces of equipment of that era. They should be replaced, and replaced on sight if there is any cracking in the transparent outer case. They are also buried inside many IEC connector mains filters, especially Schaffner filters. |
| PixieDust:
--- Quote from: lordvader88 on February 27, 2019, 03:42:00 pm ---I just learned what RIFA caps are myself, and I have a Tek 2430A scope. I had it apart before, when I knew a lot less. Soon I should take it apart again and have a nice look around. Same with my Tek2215 --- End quote --- This is what happens if you don't: Exactly what happened to me, was on for about 10 minutes and then started smoking like a chimney! --- Quote from: tggzzz on February 27, 2019, 05:00:03 pm ---They are also buried inside many IEC connector mains filters, especially Schaffner filters. --- End quote --- Thanks for the heads up. According to Dave's video: They can look fine after they go. But I think that's the case if you pull the plug quickly. Mine were sizzling for a good 5-7 seconds. Then it becomes apparent that something is wrong because there's more time to do damage. |
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