hamrc wrote:
Gentlemen,
How critical is the resistance and henry rating on a filter choke?
I have one for the above gen. coverage rec. rated at 500 ohms 13 henrys
and 65 ma.that is open.

As long as you are in the ballpark. You can go higher on the current.

Second question can I sub. a 500 ohm resister (high wattage) even if
just to continue checking out the unit?

Yes, although it may be hummy. This is often done to replace speaker
field coil chokes. You may need to go up a bit on the filter cap values.

Would be interested in buying a part from a part out radio if any available.

Check http://www.oldradioparts.com


-Bill