noisy tektronix 465

Nov 30, 2005 4 Replies
J

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.



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T

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.

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J

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.

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T

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:

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R

Check and see if the fan filter has been kicked in and is rubbing against the blades.

Good Luck! Rich

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