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Old May 18th 04, 12:31 AM
Patrick
 
Posts: n/a
Default Marconi TF1245 Q Meter - help

So I managed to get ahold of a Marconi TF1245 Q Meter. After doing some
research on the internet, I found out that it needs a separate oscillator
unit. I do not have this. I tried using a regular ol' signal generator but
I was unable to get a response on the "Q MULTIPLIER" panel (you're supposed
to increase the amplitude on the oscillator until the needle swings to the
"x 1" position). I'm using the low frequency input, with the freq.gen set
to 100Khz. Further reading has suggested it may be an impedence matching
issue; and I have no idea what voltage the unit is looking for so perhaps my
freq.gen can't go high enough.

If anyone could give me some hints on how to get this thing working I would
be most appreciative.

(Of course, the thing was being junked, so it might not work in the first
place...heh...although it does "come alive" when turned on and is otherwise
in perfect condition inside.)

Thanks a lot



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