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(!!!) (Recommended Pair) 7591A Sylvania NOS rebranded RCA and GE 1960's (54.5ma and 55.2ma)

(!!!) (Recommended Pair) 7591A Sylvania NOS rebranded RCA and GE 1960's (54.5ma and 55.2ma)

$ 199.99

1 matched pair) 7591A Sylvania NOS 1960's same build

1 tube) 54.5ma Gm=10,100 branded GE

1 tube) 55.2ma Gm=9900 branded RCA


Matched on Amplitrex

Vplate = 300

Vscreen = 300

Vgrid = -10

Good Ma range 50-60

Good Gm range 10,000 - 11,000

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

 

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