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Original Message
RE: It has nothing to do with being a purist...
Posted by AA6U on May 25, 2020 at 13:28:23:
I believe it would be impossible to find NOS power supply can capacitors identical to the ones used in the 8B. Even if you did, they likely would be bad after sitting on the shelf for decades.
If you bought a '53 Corvette, would you put API SA oil in it just because that is what was used in 1953? No, you'd put in modern grade oil (API SN) to assure long life and better performance (SA oil is why car engines wore out after 60,000 miles years ago). Same thing with replacing parts in an amp or preamp. Keep it as original as possible, but replace the bad parts with good quality modern ones unless you just want it to sit on a shelf.