(slightly microphonic) JAN-5751 Sylvania NOS 1973 (2.0/2.3ma)

(slightly microphonic) JAN-5751 Sylvania NOS 1973 reboxed

1 section) 2.0ma Gm=1700

1 section) 2.3ma Gm=1800

- microphonics are low, can only hear when tube is tapped hard

Tested on Amplitrex 

- Genz Benz Streamliner 900 bass amp 2011-2012
- Mapletree Ear+ Purist HD
- Jolida CD-100 sub for 12AX7's
- JADIS Defy 7 amp
- Jolida JD-9 phono preamp
- Fender Champion 600