[Johnson] Ranger Problems

[dreamlobo]

I recently came by a Ranger 1 which has the keying circuit changes via
Johnson. It also has a PTT modification. I have replaced the electrolitic
caps and tubulars and the transmitter makes full output.
There remains two problems that I have spent some time on trying to resolve
with no success. When the radio is first keyed up, the modulator resting
current moves quickly to about half of what the resting value should be, and
then, with in a second, moves up to about 65 ma which is about what it
should be. The audio gain control must be turn up virtually all the way to
fully modulate the transmitter and then as you talk the radio slowly begins
to over modulate requiring a reduction in audio gain down finally to about
where it should be with a D104. I have checked all tubes and resistor values
as well as voltage values and simply can not find anything wrong. If anybody
else has experianced any weird problems like this with their ranger or if
you have any idea what may be causing this please let me know cause I am
reaching the point where I do not even know where to look next for a
solution.
Thanks
Tom
Ae8o dreamlobo at cableone.net