Pair Siemens E188CC 7308Germany Matched TubesPair Siemens E188CC 7308 Germany Matched Tubes NOSSiemens E188CC / 7308 matched pairs labeled as RCA and made in Germany. These tubes are most likely NOS by looking at test results. Excellent transparant sound with tube warmth. Date code in m...160.00

Pair Siemens E188CC 7308 Germany Matched Tubes NOS [Expired]


no longer for sale

Siemens E188CC / 7308 matched pairs labeled as RCA and made in Germany. These tubes are most likely NOS by looking at test results. Excellent transparant sound with tube warmth. Date code in metal plate inside of the tubes is G4 9K on both tubes. I have 1 more of identical tube if you need trio. Many consider 7308 the best of the best in 6DJ8 family tubes. Rated to have 10,000 hours. Test better than spec for new! Tightly matched (all 4 sections are within 4%)! Low noise! Guaranteed! Paypal add 3.5%. *************************************************************************************************** Shorts, Gas and Noise: passed Noise Test: passed with very good noise and micorphonic characteristics Gm Test: Tube #1 Triode Section 1: 13800 Tube #1 Triode Section 2: 14200 Tube #2 Triode Section 1: 14000 Tube #2 Triode Section 2: 13700 Where minimum good is 7000 and spec for new is 12500 *************************************************************************************************** I guarantee excellent performance, so bid with confidence. If you are not satisfied with my tubes for any reason, I will issue full refund for your purchase price. (Buyer pays for return shipping) Priority Mail shipping within US with delivery confirmation is $5.90. Priority Mail International Small Flat Rate Box shipping is $13.45. First class mail will cost less. I can ship by First class mail if requested. All tubes are tested by Hickok 539C vacuum tube tester. This tester was precision calibrated by Roger Kennedy to improve measurement accuracy. 83 and 5Y3 tubes were replaced by Solid State rectifiers to minimize calibration drift in the tester. I also perform listening tests on these tubes using Music Reference RM-4 pre-preamp (moving coil head amp), which has 30 db gain. This unit uses two 6DJ8 tubes (one for each channel). Each channel uses both sections of the 6DJ8 tube.
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sojs 

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