[jcassity]

my friend Tom B down in va beach just informed me that philco has metal an equals to the rectifier and 6k6 positions.
word for word on a heat solution..



"" The 6K6 or 5Y3 were never mfg'd in metal configuration but a pair of metal 6V6 can be subbed...
 Also a metal 5Z4 can be used for 5Y3...
 Metal tubes are usually cheap at the tube vendors or even on ebay(where generally the resellers that cater to audiophools run prices up)... They are certain that some brands sound better than others, of course it's always the ones in short supply... Funny thing is no tube manual that listes specs ever claimed to be better sounding than the next manufacturer's product... ""