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Question about Tektronix SC501 scope

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January 22nd 06, 02:48 AM posted to rec.radio.amateur.homebrew

Gudmundur

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Question about Tektronix SC501 scope

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Gudmundur wrote:

The crt beam seems very feeble at these two highest writing speeds.
Very unimpressive for what I would call Tek's normal high standards.
Not in the same ballpark as my SC502 dual trace unit for instance.
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

Are you triggering the sweep at the higher speeds or just letting it
auto-trigger? Auto-trigger is done at a low rate and makes the sweep
very dim until it gets an actual high frequency trigger.

Bill, W6WRT

Bill, I know exactly what you are saying and I was triggering from
a sinewave signal generator at rates from 1mhz to 10mhz where the
scopes bandwidth becomes the limit of usability.

Most Tek scopes produce a trace that looks like a green laser beam.
This thing is like a 2AP1 or 2BP1 and lacks that normal Tek punch,
but as mentioned, it only has 1kv of acceleration potential so I am
guessing lame is the name of the game.

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