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(!!!!!) (Best Sylvania Pair) JHS-5687WA Sylvania NOS 1964 same date codes (33/34.2ma and 35.6/36.3ma)

(!!!!!) (Best Sylvania Pair) JHS-5687WA Sylvania NOS 1964 same date codes (33/34.2ma and 35.6/36.3ma)

$ 69.99

1 low noise pair) JHS-5687WA Sylvania NOS 1964 same date codes 

1 tube) 33.0/34.2ma and Gm=10,300/10,600

1 tube) 35.6/36.3ma and Gm=10,700/11,000

 

Good Ma range 30-35ma

Good Gm = 10,000 - 11,000

 

Recommended for

Manley

Modwright

Audio Note

Ray Samuels

Ayon

Kondo

Mastersound

Audio Thrills

Loth

Marsh

 

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