(!!!!) (Best Pair #3) 7N7 Sylvania branded RCA amd Sylvania 1960 era (8.4/9.5ma and 8.6/9.8ma) (same Gm) 1-3% matched

1 matched pair) 7N7 Sylvania branded RCA amd Sylvania 1960 era
1 tube) 8.4/9.5ma Gm=2600/2800 branded RCA
1 tube) 8.6/9.8ma Gm=2600/2800 

(7N7=Loktal 6SN7GT with superb sound - great option for DIY project instead of using 6SN7GT)

- Bottlehead Forum Foreplay III Conversion
- Singlepower Concerto 2007
- Singlepower MPX3
- Peter Millett 307A headphone amp
- Woo WA6 with adapter socket 6DE7 to 7N7
- Mystere ia21 preamp
- Eddie Current
- Masco MA-17

NOTE: ALL the 7N7 listed below have "TRIANGULAR BLACK PLATES" unless stated