[ARC5] F-194/U F-195/U filters

[Glen Zook via ARC5]

I have several of the F-195/U filters, which I have had for decades!  What I am trying to determine is if the F-195/U filters can be modified, or rebuilt, to work as F-194/U.  I know the lengths of the elements are different.  The frequency calibration for both the F-194/U and F-195/U are present on the tuning knobs and if the length of the F-195/U can be increased to that of the F-194/U, the calibration should work out for the filter.
Basically, I am needing the information on the length of the elements of the F-194/U.  Then, I have several options as to how to physically accomplish the process including replacing the outer shell with longer tubing, adding to the length with sheet metal, etc.
The idea is to be able to use the filters in the 2-meter band. Glen, K9STH

Website: http://k9sth.net
      From: WA5CAB--- via ARC5 <arc5 at mailman.qth.net>
 To: arc5 at mailman.qth.net 
 Sent: Tuesday, January 6, 2015 1:55 AM
 Subject: Re: [ARC5] F-194/U F-195/U filters
   
I have TM 11-487 on AN/TRC-24 (et al) scanned but you probably don't want 
to buy a copy as besides 400+ A-size pages, it contains 54 B-size and 2 very 
wide foldouts.  I haven't found the rated frequency operating ranges but 
after about an hour of searching, I finally came across the calibration test 
specs which give the low and high test frequencies for each of the filters for 
calibration test and attenuation/throughput test.  I won't attempt to 
explain the test procedures but will merely say that F-194/U covers 2 Meters and 
F-195/U covers the high-band VHF Commercial band.  The  filters were used 
with both the receiver and the transmitter of AN/TRC-24.  The transmitter runs 
a single 4X150A in the output stage and appears to have a rated output of 
120 Watts at 2 meters.