(!) (slightly microphonic) JAN-CRC-6SL7GT RCA NOS black plates 1951 tilted glass (2.0/2.2ma)

1 slightly microphonic low noise tube) JAN-CRC-6SL7GT RCA NOS black plates

(1-35=1951) tilted glass

2.0ma Gm=1500

2.2ma Gm=1600

Good Ma range 2-3ma

Good Gm 1400-1600

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