one RTC GZ34 valve made by Mullard in Blackburn

code B3B4

tested strong like NOS



READINGS

measurements were made on a precisely calibrated Metrix U61DM with Va 250V


tested Ia  49/49 mA
where a new tube gives 49mA with Va 250V

worldwide shipping with tracking in well made postal small parcel 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"