Topband: Looking for information.

[robert briggs]

Hi all.I have been given a Simpson Communication Tester Model 
440......SWR- Power-% Modulation--RFS.
It looks as though it just came from the factory.I have tried it in line 
with my 160 meter station and it is sensitive enough to work on the 
100/250 and 1Kw settings.
Unfortunately it didn't come with a handbook and I am wondering if 
somebody here may be able to find one or point me in the right direction 
to obtain a copy.It looks impressive sitting on the GS-35B linear..

Regards all.....Bob VK3ZL..