[Test-Equipment] Fw: Tektronix 465 question

[ab6mt]

Think the 'scope has been used, but it appears to be in very good physical
condition and the tube still seems to have quite a bit of life left in it.
Have a 7633 that has a tube that isn't as happy.  Haven't had a chance to
check supply voltages carefully, yet.  But strange that both channels have
the same problem and excessive amplitude.

Thanks for the good suggestion.

Bill

----- Original Message ----- 
From: Mike Manes
To: Bill Smith
Cc: test-equipment at mailman.qth.net
Sent: Sunday, August 21, 2005 7:22 PM
Subject: Re: [Test-Equipment] Fw: Tektronix 465 question


If the trace is also a bit dim, it could be low CRT anode HV.
73 de Mike W5VSI

Bill Smith wrote:
>
> Have just acquired a 465 oscilloscope in beautiful condition.  However,
both
> channels are out of calibration and read about 150% high when connected to
> the calibration bar.  Have the book but have not opened the cabinet, yet.
> Wonder if anyone has run across this problem and can give me a hint where
to
> start looking.
>
> 73 de Bill, AB6MT
> ab6mt at sonic.net
>
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-- 
Mike Manes    manes at attglobal.net     Tel: 303-979-4899
"Things should be made as simple as possible, but not more so."  A.
Einstein

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