READINGS
measurements were made on a precisely calibrated Metrix U61DM with Va 200V, and -Vg1 2V
tube 1 tested Ia 1.3/1.4 mA
tube 2 tested Ia 1.4/1.5 mA
where a new tube gives 1.6mA with Va 200V, and -Vg1 2V
worldwide shipping with tracking in well made postal small parcel with tracking and delivery against signature for 9 euros.
possibility of grouping the delivery, see my other ads.
Important Reminders: “You will get what you see in the pictures.