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Electronics Forum / Basics / November 2005noisy tektronix 465
Hi, I recently purchased a used tektronix 465 scope off eBay and when I turn it on it makes a pretty loud noise. The best way I can describe the noise is as a fairly loud grinding noise. I've worked with more modern scopes in college and at work and they never made any audible noise so I was wondering if this is normal for the tek 465 or not? I hooked the scope to a signal source and it does seem to display the waveform so at least the basic functionally is there, but the audible sound is somewhat strange to me. Thanks. Does it have an internal fan? maby a wire or something is touching the fan. I think you should open it up and have a good look and listen. > Does it have an internal fan? maby a wire or something is touching the > fan. I think you should open it up and have a good look and listen. LOL, that's a good point. It does sound like the fan hitting a wire. I'll open it up this afternoon and have a look. Thanks. > I recently purchased a used tektronix 465 scope off eBay and when I > turn it on it makes a pretty loud noise. The best way I can describe > the noise is as a fairly loud grinding noise. Every so often my Tek 475 starts buzzing. I usually slap at the fan in the rear, or just ignore it. If yours is chronically loud, you might want to open it up and have a look-see. Tim -- Deep Fryer: a very philosophical monk. Website: http://webpages.charter.net/dawill/tmoranwms > Hi, > [quoted text clipped - 6 lines] > waveform so at least the basic functionally is there, but the audible > sound is somewhat strange to me. Check and see if the fan filter has been kicked in and is rubbing against the blades. Good Luck! Rich |
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