I  PIECE

 

KT88 GEC OSRAM   

6550

 3 getters. 1 Top ; 2 sides

Date Code:    not there

Used Old Stock 

Electronic Valve / Tube

Fully Tested on an AVO VCM163

Heater set at 6V on the valve base.

Test Result

IA: 69  GM: 7.7

AS PHOTO