2 X EF86 MINIWATT TUBE  IN INDUSTRIAL BOX. PHILIPS PRODUCTION. USED TUBE . TUBE. MATCHED PAIR. 

TESTED IN AMPLITREX AT1000 TUBE TESTER

TUBE 1: 83% EMISSION (EM). 100% TRANSCONDUCTANCE (GM). 0.1mA/V GAS. 

TUBE 2: 83% EMISSION (EM). 100% TRANSCONDUCTANCE (GM). 0.0mA/V GAS.

Ref. CB63