6550 Tungsol branded RCA NOS vented plate NOS 1965 – large shiney getters – in white box

130ma

Gm=10,700

Good NOS Ma range 125-140ma

Good NOS Gm range = 10,000 – 11,000

Recommended for

– ARC VS 110 and other ARC amps
– Audio Research Reference 3 line-stage power supply
– Rogue 90
– VTL amps; MB300, 450, many others
– Gibson guitar amp
– McIntosh 275
– Beard P100 MKII 1984
– Cayin A-88T