12-09-2005, 10:19 AM
Ron,
I get my X/Y caps from Dave at justradios; they are also blue in color and are most likely identical to yours from Mouser. I always use .01 mfd for line bypass regardless of what was originally in the radio. As you mentioned, they fit fine into the bakelite blocks.
As far as metallized film caps in this application, most of us used them for many years with no problems. They are thousands of times better and safer than the original paper ones. But since the X/Y type are now readily available at a fairly low price, there is no reason not to use them for the added safety factor.
The only problem with these safety disc caps is in non-Philco radios where you are re-stuffing the original paper cap shells. The disc caps of course won't fit inside. In these cases I admit that I still sometimes use a film cap, 630v rating. That is DC rating of course; as I recall AC rating on most of these 630v film caps is 200v. Most 400v film caps also have a 200v AC rating, but I only keep 630v in stock.
Poston
NOTE: Ron, you are very lucky to still have a good electronics jobber in your area. All of ours here are now gone, the closest is in Huntington, about 50 miles from me. Unless it is a dire emergency, considering current gasoline prices and the driving time it is more practical for me to order by mail.
I get my X/Y caps from Dave at justradios; they are also blue in color and are most likely identical to yours from Mouser. I always use .01 mfd for line bypass regardless of what was originally in the radio. As you mentioned, they fit fine into the bakelite blocks.
As far as metallized film caps in this application, most of us used them for many years with no problems. They are thousands of times better and safer than the original paper ones. But since the X/Y type are now readily available at a fairly low price, there is no reason not to use them for the added safety factor.
The only problem with these safety disc caps is in non-Philco radios where you are re-stuffing the original paper cap shells. The disc caps of course won't fit inside. In these cases I admit that I still sometimes use a film cap, 630v rating. That is DC rating of course; as I recall AC rating on most of these 630v film caps is 200v. Most 400v film caps also have a 200v AC rating, but I only keep 630v in stock.
Poston
NOTE: Ron, you are very lucky to still have a good electronics jobber in your area. All of ours here are now gone, the closest is in Huntington, about 50 miles from me. Unless it is a dire emergency, considering current gasoline prices and the driving time it is more practical for me to order by mail.
