TMDT1 MAZDA BRAND TUBE YEARS 1930; TESTED U61 À LA CHAULME

TMDT1 MAZDA BRAND TUBE MADE IN FRANCE YEARS 1930 Used, in perfect working condition poor lettering, see        MAZDA                 TMDT1                 CHAUFFAGE       4 VOLTS     Service Public Tested Good on U61B laboratory tester for: shorts grid emission Leakage gas mutual conductance Results tube: Ia 4,6 mA Gm 1,2 mA/V no shorts; no gas; no noise if shaken                        (100% = Ia 4 mA and Gm 1,2 mA/V for Vg1 = -4V; Va = 100V; Vf = 4V) tube 100% GOOD This is in used working condition. What you see in the picture will be what you receive. Please look at all pictures as they are part of the description. Contact me if you have any question regarding this item. Payment by Paypal