[Milsurplus] BC-312 tuning backlash

[J. Forster]

I've not looked at a BC-312 specifically, but most WWII tuning drives use
split, anti-backlash, gears.

If such gears are stuck together, perfaps with dried out grease, there
will certainly be backlash. The little preload springs cannot overcome the
grease.

FWIW,

-John

====================




> I was reading 'Hints and Kinks' vol. 4, 1949, in the 'surplus conversions'
> section,
> about the BC-312. The article states, "the backlash problem is a
> stickler".
> It
> seems to say that with effort, you can get the backlash down to one
> division
> on
> the vernier dial.
> Now, I haven't used a BC-312 for 35 years, but I don't recall the backlash
> being
> noticeable. Maybe I was just ignorant.   What is your experience, and is
> the
> H&K comment reliable?
> tnx
> -Hue
>
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