Wireless Set No. 52 Canadian - Project

[Mike K]

Originally Posted by Bruce MacMillan

having had a close look I can see many black Sprague TVA Atom series caps. These are fairly modern so I suspect some recapping has occurred.

Yes didn't spot those. Higher voltage rated axial packaged caps are becoming harder to find, the old stock new in the package capacitors or NOS can cause problems too - years of storage can degrade the dielectric materials. You can now buy modern made Chinese poly caps in axial form but they are usually a bright yellow colour ! I have noticed a Ebay seller here based in Canberra sells them in black.

In order to retain the original appearance, I have seen restorers resort to methods like drilling out the old caps and then placing a modern cap inside the old original.