1 tube) 7N7 Sylvania NOS 1960 era
1 section) 10.8ma Gm=2700
1 section) 11.2ma Gm=3100
(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


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