are power tubes inherently damaged after redplating? what about multiple red plate events on the same pair of tubes? in this case, a pair of groove tubes el84's that were once in a problematic blues junior that kept red plating them. tubes were replaced along with solder joints all reworked to correct the problem. the bj is long gone, but i kept the old groove tubes and just threw them back in a drawer. some years later came into another amp that uses el84s and i stuck the old GT's in it. they seem to be working ok but the amp isn't particularly loud. i'm wondering if i'm running on compromised tubes.