7591A Sylvania branded RCA used/good 1973 (43ma, Gm=8100)
By Tube World
$ 59.99
7591A Sylvania branded RCA used/good 1973 (EM)
43ma
Gm=8100
Tested on Amplitrex
Vplate = 300
Vscreen = 300
Vgrid = -10
Good Ma range 50-60
Good Gm range used 9,000 - 10,000
Recommended for
AUDIO GUILD CORP BONHAM 330 1960's
Ampeg Gemini II G-15
Ampeg Reverberocket II 1960's
McIntosh 225
Mcintosh MA230 early 60's
McIntosh MAC-1500 1965
Scott
Harmon Kardon
Fisher Receivers
Sansui
Sherwood S5000II
McIntosh 225
Fisher 500C 1964
Scott 299C
Scott LK-72
Scott 340B 1964
Univox U305R
Sansui 1000a 1970
Eico ST-70
See more: vacuum tube
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