Description

Exceptional sounding matched pair JAN Philips 6U8! Sounds on my tube audio system as good as any of my reference “premium 7199,” Excellent Premium NOS Pair’s, Gold Pins black designer Metal Adapters To Replace 7199 Tube’s Exc. “Pair” 6U8A Excellent replacement Tubes (2)” W/Adapter’s To Replace 7199 Tube’s . Sound tested in my mono Amplifiers, superb! Calibrated Hickok Tested- Excellent, super tight results, Platinum matched pair. Calibrated - Jan. 2, 2023. Hickok- NOS My tester chart: Pentode section p1: 4000 Ωohms / Triode section t1: 5500 Ωohms Actual results: Hickok: Tube 1: p1 4170 Ωohms Tube 1: t1 5800 Ωohms Tube 2: p1 4150 Ωohms Tube 2: t1 5825 Ωohms All pair’s are just as nice NOS “Identical” and test results just as good. I have (Pairs, matched) sets. They come in original boxes, reference photos! Thanks, cnlaudio 7199 are nearly extinct, so I have been doing extensive and ran these up front in my home audio mono amplifiers. I’ve found these to be superb as an high fidelity audio phase splitter. Has very low microphonics and has perfect balance. low noise floor and low microphonics makes this an excellent solution. Note: I will be putting out other pairs of matched different manufacturers. These are excellent sounding performing tubes. I invested in various brands of tubes of varied types. I will only sell the best of the best, and even put them through actual music testing with various types of music. 🎶🎵 Shipped 👉 USPS First Class Mail. Thanks for looking! Vintage NOS NIB tubes, these are superb sounding! Medium-mu Triode - Pentode tube’s: Type- triode / pentode, plate voltage u (A) 150v, 170v, Anode current l (A) 18mA, 10mA, filament voltage u (F) 6.3v, heating current 450mA, Base- Noval, number of pins 9, Gain 40, 35 Pin Connections B9A 1 a(t) 2 g1 3 g2 4 h 5 h 6 a 7 k,g3,s 8 k(t) 9 g1(t)