TELEFUNKEN
RGN1064 tube
G1064  KL74303
Narrow mesh plates, foil getter, Bulb Globe
Full Wave Direct Heating Rectifier tube
Vf=4V, If=1A
made in Germany by Telefunken in July 1938 ("vs" code)
Not much used tube, tested
high emission:
35/38mA
f=4V Ua=20V
where 30mA is 100% for the new tube
tube is in a perfect technical shape
you will get the tube from the pictures
I always send tubes by priority registered mail within hours after receiving payment