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(!!!) (Recommended single) 5687 RCA bronze plates NOS 1970 era (38/44.5ma)

(!!!) (Recommended single) 5687 RCA bronze plates NOS 1970 era (38/44.5ma)

By Tube World

$ 39.99

1 low noise tube)  5687 RCA black plates NOS 1970 era

1 section) 38.0ma Gm=12,600

1 section) 44.5ma Gm=13,400 

 

Good NOS Ma range 30-35ma

 

Recommended for

Manley

Modwright

Audio Note

Ray Samuels

Ayon

Kondo

Mastersound

Audio Thrills

Loth

     

     

     

     

     

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