1 low noise pair) 6SN7GTB Sylvania NOS 1960”s same build
1 tube) 7.8/8.4ma Gm=2400/2500 Sylvania NOS
1 tube) 7.8/8.4ma Gm=2500/2600 Sylvania branded RCA low hours/like new (1962)
– detailed mids – extended highs – balanced
Matched on Amplitrex
Vplate=250V
Vgrid=-8V
Good Ma range 7-10ma
Good Gm = 2400-2600
best for:
– Modwright Oppo 105D
– Schiit Freya
– Grant Fidelity (Yaqin) B-283 mkII tube buffer
– Valvet Audio preamp
– Singlepower PPX3-SLAM
– Aesthetix Calypso
– CJ MV55
– Cary SLP-05 preamp
– Yaqin MS-34C
– Modwright Sony 5400ES
– Oppo/Modwright BDP-95
– VAC Renaissance 30/30 MKIII
– Bottlehead Crack


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