10
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4t's much better than sodium fodine.
They
have a small ‘optical® and mechanical strength
as Gompared to a sodium iodine tube.
The output of the multiplied tube
4s spread into the grid of a small filae
mentary type tube,
Actuslly there are two
tubes in parallel,
These two tubes give us
a characteristic which gives us a logarithmic
response so that we can cover approximately
five decades of information on a single
rangé.
The output ie fed into a recorder
which 1s connected in the plate circuit of
the amplyfier tube and gives you an indie
cation of zero to one mill which corresponds
to approximately five decades,
From this detector we go into
this recorder,
board).
(Showing it on the blacke
Then we also go into what we oall
a compensation circuit where a eignal froa
a radar house comes into this,
The eignal from the radar altimeter
4s fed into this circuit and combined with
the output of the detector,
The purpose here i¢ that with the
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