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Old 4th Jun 2021, 11:15 am   #4
Cobaltblue
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Default Re: Hickok 539b bias gauge

Quote:
Originally Posted by mikko rintala View Post
Is this help? Mechanical Meter Zero
This pertains to all three meters on the set, but primarily to the MAIN METER. Before powering up the set, the physical zeroes of the meters should be checked and adjusted. This is done by turning the slotted screw head located at the center bottom of the meter.
I think the point here is looking at the picture there is no adjusting screw head in the position described above.

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Mike T
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