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

[John Ackermann N8UR]

Tom Van Baak wrote:

>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
>  
>

Wiggling as I turn the C-field control.  I discovered the problem is 
that the attenuator on my 3325A is shot -- when you cross from 0.99 to 
1.00 volts, it switches attenuator ranges and something must be open on 
the higher range as the output is a fixed 3.3V RMS no matter what you 
set the attenuator to.  With an external 50 ohm attenuator (600 ohm 
probably would have been better, but I didn't have one handy) I was able 
to get things acting more or less like what the manual says, though the 
difference between peaks and dips is only 3 or 4 minor divisions on the 
meter.

John