7N7 Sylvania branded Philco short bottle used/good parallel gray plates 1948 in white box
1 section) 7.2ma Gm=2100
1 section) 7.6ma Gm=2200
Good used Ma range 6-8ma
Good used Gm range 2000-2400
(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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