21-01-2018, 11:21 AM
I've had a look at the circuit over breakfast and can say that I think you're right Mike, it looks like someone has tried to restore it and got in a bit of a muddle, if you've sketched how its wired at the moment accurately, then the balance pot isn't doing anything on the capacitance range.
The PF control should I believe be used to balance components with bad power factors, even then they had bad wax caps! It was so the null point could be made more defined.
It also looks that the components originated over several decades, confirming that it's been got at.
I also have a book that was written by W.T.Cocking that describes construction of a simple R/C bridge, that may be of interest to some.
Andy.
The PF control should I believe be used to balance components with bad power factors, even then they had bad wax caps! It was so the null point could be made more defined.
It also looks that the components originated over several decades, confirming that it's been got at.
I also have a book that was written by W.T.Cocking that describes construction of a simple R/C bridge, that may be of interest to some.
Andy.
