Author Topic: 6sn7 vt231 6h8c 5692 cv1988 tube  (Read 45 times)

Offline wilsontube

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6sn7 vt231 6h8c 5692 cv1988 tube
« on: February 12, 2019, 13:10 »
Brimar 6sn7gt 6sn7gty cv1988 Great Britain new old stock(nos) new in box(nib) strong pair --$350
test results--97/94, 94/94
https://imgur.com/a/mbBWTbk
Brimars are very sweet, lush sounding tubes. […] It should be noted that Brimars are also the quietest 6SN7. All in all, the CV1988 is a terrific tube. You turn to Brimars when you want a more euphonic sound. Strong bass, wide midrange and soundstage.

kenrad vt231 6sn7gt black glass U.S military 1940's new old stock(nos) strong pair--$180
test results--98/95, 98/97
https://imgur.com/a/S6Hmsuh
these kenrad black glass 1940's tube have great bass, drive, sweet midrange, good bandwidth. Bass is definitely it's strong suit. On the other hand, the highs are more grainy then other tubes.

sylvania vt231 6sn7gt US (jan) joint army navy 1940's new old stock(nos) strong pair--$130
test results--96/92, 97/93
https://imgur.com/a/vUffmLB
these vt231 gives wide bandwidth, well balanced, excellent sound stage and air. Imaging is precise

kenrad vt231 6sn7gt black glass U.S military 1940's new old stock(nos) strong pair--$180(sold)
test results--96/95, 94/96
https://imgur.com/a/6Rm8QTA
these kenrad black glass 1940's tube have great bass, drive, sweet midrange, good bandwidth. Bass is definitely it's strong suit.

sylvania vt231 6sn7gt US (jan) joint army navy 1940's strong pair--$130(sold)
test results--100/100, 98/98
https://imgur.com/a/bS3I9xV
these vt231 gives wide bandwidth, well balanced, excellent sound stage and air. Imaging is precise

raytheon jan(joint army navy) 6sn7gt vt231 test good pair--$80(sold)
test results--92/100, 86/92
slightly below strong on 1 side of that 1 tube, but no effect on the sound, the test results show they should last for many years, at a bargain price
http://s1076.photobucket.com/user/llczxjlpolsy/library/raytheon%20jan%206sn7%20vt231%20test%20good%20pair?sort=3&page=1
Extended highs, a crystal clear midrange lacking some of the Sylvania's warmth, and an extended bass response. level of detail seems higher than it is with Sylvania's, and the bass impact of these tubes really comes through. are much more forward in their presentation

cbs 6sn7gt new old stock(nos) new in box(nib)--$70
test results--104/96, 97/104
http://s1076.photobucket.com/user/llczxjlpolsy/library/cbs%206sn7gt%20new%20old%20stock%20new%20in%20box?sort=3&page=1
Quiet and musical, the best of the non-military tubes, most mellow and have the most refined sound. Very smooth and airy up and down with a nicely detailed high end

rca 6sn7gtb coin base pair--$50
test result--106/104, 102/98
http://s1369.photobucket.com/user/wisonzxj/library/rca%206sn7gtb%20coin%20base%20pair?sort=3&page=1

ge 6sn7gtb coin base pair--$40
test result--98/92, 95/92
http://s1369.photobucket.com/user/wisonzxj/library/ge%206sn7gtb%20coin%20base%20pair?sort=3&page=1

fivre 6sn7gt Italian made 1950s strong single--$60
test result--92/94
http://s1369.photobucket.com/user/wisonzxj/library/fivre%206sn7gt%20Italian%20made%201950s%20strong%20single?sort=3&page=1
this might be one of the finest 6sn7. very detail, good mid vocal. beat some of the highly rated 6sn7.

tubes are tested on tv-7 tube tester use by U.S army and airforce where minimum good for 6sn7 is 50/50. strong start around 85/85

interest call/sms/watsapps/email--91454638-wilson/ wilsonzxjtube@gmail.com (overseas and local registered postage services are available)