[time-nuts] Input voltage for Zeeman on 5061A

[Tom Van Baak]

1 V rms is what they want. By wiggling do you mean
you see wiggling as you turn the C-field all ten turns
or wiggling as it sits there at a fixed C-field?
Make sure you're open loop and modulation off.

/tvb

----- Original Message -----
From: "John Ackermann N8UR" <jra at febo.com>
To: "Discussion of precise time and frequency measurement"
<time-nuts at febo.com>
Sent: Saturday, January 22, 2005 06:40
Subject: [time-nuts] Input voltage for Zeeman on 5061A


> Anyone know how much voltage you need to drive the Zeeman input on the
> 5061A?  I just tried to set mine and found that the maximum output from
> my 3325A (3V RMS) was barely enough to see any wiggling at all on the
> beam current meter  I have another generator that goes up to 6V and that
> got me a bit more, but even then only a few meter divisions between peak
> and dip.
>
> Either I need a heftier generator (or maybe an impedance step-up), or
> we're back to the question of what is the right Zeeman frequency for an
> FTS tube in an HP chassis.
>
> Thanks,
>
> John
>
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