The correct manufacturer desription would be Wavetek , Datron Model 9000
and would have been made only by Wavetek.
You can buy newer types but I want to repair this one.
This one is about 12 years old and would cost around $30 000
Thank you Torsten

"Paul P" wrote in
message ...
Is that made by anther manufacturer?

"Torsten" wrote in message
...
Hi, can anybody enlighten me whether Wavetek at some stage supplied
a Service manual for the Wavetek 9000 (at cost) which included the
circuit
diagrams
and if so is there a place where one could purchase such manual.
And /or is there a place which fixes and calibrate such instruments.
Thank you
Torsten