Author Topic: rectifier tubes 5r4gy ez90 gz34 u52(new)  (Read 464 times)

wilsonzxj

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rectifier tubes 5r4gy ez90 gz34 u52(new)
« on: October 12, 2017, 04:36:59 PM »
holygrail gec marconi u52 5u4g strong piece--$300
test result--58/57
http://s1076.photobucket.com/user/llczxjlpolsy/library/holygrail%20gec%20marconi%20U52%205u4g%20strong?sort=3&page=1
this is the best sounding 5u4g tube you ever get. some say the sound even better than the western electirc 274a/274b tube

tubes are tested on tv-7A/U tube tester use by U.S army and airforce where minimum good for 5u4g u52 is 40/40, where 50/50 and above are consider strong.

holygrail brimar 6063 cv4005 ez90 6x4 3 mica Trustworthy print black plate square getter new old stock(nos)--$90
test result--60/60
http://s1076.photobucket.com/user/llczxjlpolsy/library/brimar%206063%20ez90%206x4%203%20mica%20black%20plate?sort=3&page=1
brimar made black plate tube normally give some of the best sound.

mullard gz34 5ar4 fat base f31 test strong--$150
test results--62/62
http://s1369.photobucket.com/user/wisonzxj/library/mullard%20gz34%205ar4%20fat%20base%20f31%20test%20strong?sort=3&page=1
these mullard gz34 fat base code f31 are best among all plastic base gz34. Second to the a lot more expensive metal base gz34, sound close to metal base type.

Fivre 5r4gy italian made nos nib--$100
test results--60/58
http://s1369.photobucket.com/user/wisonzxj/library/Fivre%205r4gy%20italian%20made%20nos%20nib?sort=3&page=1
these fivre are a much better 5r4gy compared to RCA 5r4gy for sure

gec cv4005 ez90 6x4 black plate british military nos--$90
test result--58/59
http://s1369.photobucket.com/user/wisonzxj/library/gec%20cv4005%20ez90%206x4%20black%20plate%20nos?sort=3&page=1

brimar 5r4gy rare carbon coated black glass with support rod nos--$150 per piece
test results--56/54(sold), 58/55
http://s1369.photobucket.com/user/wisonzxj/library/brimar%205r4gy%20rare%20carbon%20coated%20black%20glass?sort=3&page=1
these are one of the best 5r4 brimar made 5r4gy.

brimar cv574 6X5gty 6X5 british military nos nib--$40-single piece
test results--52/54, 52/54
http://s1369.photobucket.com/user/wisonzxj/library/brimar%20cv574%206X5gty%206X5%20british%20military%20nos%20nib?sort=3&page=1
tubes are tested on tv-7A/U tube tester use by U.S army and airforce where minimum good for 6X5 is 40/40.

tubes are tested on tv-7A/U tube tester use by U.S army and airforce where minimum good for rectifier tube is 40/40, where 50/50 and above are consider strong

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