1 low noise tube) 12AX7=ECC83 Philips and Pope Holland NOS 1965-1967 small "o" getter halo

1 tube) 2.1/1.8ma Gm=2200/2000 (1967) branded Philips (165-delta7F4=1967)

1 tube) 1.6/2.1ma Gm=2000/2300 (1965 era - faded date code) branded Pope (165 series) in white box

NOS Gm range 1600+

NOS mA 1.0mA+

Recommended for

- EAR 834P
- EAR 864
- Aestetix Rhea phono
- Aestetix Calypso, Io phono
- Art Audio phono
- Audio Research linestage
- Shindo linestage
- Jolida 1000 CD player
- CAT SL-1 Signature Mark III preamp
- Fender Pro Reverb 1967
- Pathos Acoustics T.T. Hybrid Integrated amp (INPOL)
- Belari 129 phono

- Art Audio MPA Gold pre
- Fender Tremolux 1963
- Jolida