1 low noise tube) ECC85=6AQ8 Sylvania black plates NOS 1970 era
1 section) 8.4ma Gm=5300
1 section) 14ma Gm=6100
(6AQ8 Specs: Filament=6.3V @ 435ma, Mu=57, Gm=5700, the best sounding are Telefunken, Siemens, Holland and Mullard)
- Luxman MQ80 amp
- EAR 509 amp
- EAR 534 amp
- EAR 890 amp
- EAR 834 Integrated amp
- Scott 335 Tuner
- Consonance M500
- Don Allen preamp
- TL Audio iTube Valve Dock mk II (2010)
- Music Angel KT88 MkIII