1 low noise pair) JHS-5687WA Sylvania used/very good 1960's faded printing in white boxes

1 tube) 35.4/34.2ma Gm=10,100/10,300 

1 tube) 37.0/36.5ma Gm=10,700/10,300 

Good Ma range 30-40ma

Good Gm range 10,000-12,000

Recommended for

Manley

Modwright

Audio Note

Ray Samuels

Ayon

Kondo

Mastersound

Audio Thrills

Loth