Wow and fluter meter calibration

[microstrip]

Another naive question:
How do you calibrate a wow and flutter meter? Apparently one could use a CD recorded with standard tones having a know amount of wow and flutter, but I could not find any reference to such standards.

[Waltzingbear]

you use a bessel null calibration. if you were a rf engineer you would know how, its not really fun.

or you could pm me and I'll send you a file of a bessel null calibration file to use as a standard.

alan
at
waltzingbear com

[ironbut]

Welcome to the forum Alan.
I'm assuming you are the same Alan Garren whose informative posts I see on the Ampex list from time to time.
It's always great to have someone with real technical know how visit us here.

[Waltzingbear]

It is I. My "day" job is keeping Portland Safe for Recording. My night job is scratching away on the fiddle.

[microstrip]

It is great to have some one who is an expert and also very friendly and helpful - I received today my Panasonic (National)  VP7750A wow and flutter meter and could check its calibration using the test wave Alan supplied. I am an happy man - the VP7750A reads .52% and the test tone wave has .507% flutter. Thanks Alan!

The unit come without a service manual. Do you know where I can find or buy one?

[Mikemaxcel]

If some one got the service manual I would like to have a copy with reasonable payment.