11-07-2011, 11:50 AM
Hi Alan,
The reason for these two caps is to block any voltage which present in the tested circuit from being applied a cross the output of the generator and to match the impedance of the generator output to the circuit.
If you are working on a set that has a power transformer then you wouldn't necessarily need the cap in the ground leg. If you are using it on a transformerless set you will need it or an isolation transformer.
The cap in the output side could be installed inside the generator where the wire connect internally. You could check the diagram to see if it has a cap in series with the output, don't think two would be necessary. Both of these caps should have a voltage rating of 500v or better, no low voltage stuff here.
Terry
The reason for these two caps is to block any voltage which present in the tested circuit from being applied a cross the output of the generator and to match the impedance of the generator output to the circuit.
If you are working on a set that has a power transformer then you wouldn't necessarily need the cap in the ground leg. If you are using it on a transformerless set you will need it or an isolation transformer.
The cap in the output side could be installed inside the generator where the wire connect internally. You could check the diagram to see if it has a cap in series with the output, don't think two would be necessary. Both of these caps should have a voltage rating of 500v or better, no low voltage stuff here.
Terry
When my pals were reading comic books
I was down in the basement in my dad's
workshop. Perusing his Sam's Photofoacts
Vol 1-50 admiring the old set and trying to
figure out what all those squiggly meant.
Circa 1966
Now I think I've got!
Terry
![[-]](https://philcoradio.com/phorum/images/bootbb/collapse.png "[-]")
