Got your email. But since you also posted here, I will give the answer to the email here as well.

With all due respect, this is a question I won't answer. No, I am not trying to keep the information to myself, rather it is a matter of time. The dimensions are found ONLY on the original blueprints/drawings which are on microfilm. It would take an hour or so to retrieve the information, and present it in a usable form. And spending that hour could result in about 3800 identical questions for other metering rods.

As far as general specs:

Effective length 2.40625
High vacuum 0.0715
Midrange 0.062
Low vacuum 0.045

And even Carter did not have a comprehensive chart (at least it doesn't exist in the factory records in my possession).

Jon.

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