sylvania vt229 6sl7gt U.S joint army navy 1940's strong pair tubes, guitar, hifi, preamp, speaker, amplifer, cd player, dac, turntable, headphone, audiophile


S$80
Singapore

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sylvania vt229 6sl7gt U.S joint army navy 1940's strong pair--$80 test results--55/56, 56/58 http://s1076.photobucket.com/user/llczxjlpolsy/library/sylvania%20vt229%206sl7gt%20US%20joint%20army%20navy%201940s?sort=3&page=1 Dynamic, added top and bottom...wide...wide soundstage. tubes are tested on tv-7A/U tube tester use by U.S army and airforce where minimum good for 6sl7 vt229 is 32/32, where 50/50 and above are average new old stock for 6sl7 interest call--91454638-wilson/ wilsonzxjtube@gmail.com overseas and local registered postage services are available