[Hallicrafters] HT-37 Final Tune capacitor setting.

[Waldo Magnuson]

Hi,
Can someone tell me the capacitor engagement for a particular front 
panel setting for the Final Tune on my HT-37?  My Final Tune settings 
(through the little window) are 10-15, 20, 40, 80.  I need to know 
where the capacitor engagement is set for a particular setting - say 80 
which I suspect may be full engagement of the plates.
Thanks.
73,  Skip Magnuson  KD7VRM