PR VINTAGE RCA RED BASE 5691 6SL7GTPREAMP DRIVER TUBES, MILITARY, BEST, TRIPLE MICAPr of the excellent sounding highest specification Vintage Red Base CRC-5691/6SL7GT Preamp/Driver tubes, Military Specifications, Highest Tolerances, 1960s Design and build quality, Vintage 1960s U...95.00

PR VINTAGE RCA RED BASE 5691 6SL7GT PREAMP DRIVER TUBES, MILITARY, BEST, TRIPLE MICA EX SOUND, TEST STRONG, 1960s [Expired]


no longer for sale

Pr of the excellent sounding highest specification Vintage Red Base CRC-5691/6SL7GT Preamp/Driver tubes, Military Specifications, Highest Tolerances, 1960s Design and build quality, Vintage 1960s USA, both test very strong on both sides. These Vintage RCA Red Base tubes are known for their excellent sound, detailed, dynamic, quiet, spacious, involving, transparent, smooth, natural and very musical. They use the highest quality black plate, triple mica design, incomparable quality. Both tubes on both side test over 900 on my B&K Mutual Conductance tube tester, where 620 is minimum good, very strong. Better get these rare and excellent tubes. Buy with confidence, see my feedback. Good Listening, SonnY :)