Original TELEFUNKEN CF3
this is a 13V version of EF3 AF3 VF3 tubes
Vf 13 Volts / If 0.2 Ampere
Vacuum Pentode RF/IF-Stage Controlling (mu)
13H2 TCF3 UF3 UEP51 VCF3 S1323 TF313 p8 13U10 Ultron
made by TELEFUNKEN GERMANY in March 1938 ("su" code)
The tube is probably used, tested with the great results:
tube 1 Ia = 7mA
where 100% for the new tube is 7mA
Some scratches at the screen paint, but the tube is in a great technical shape.
the tube has Europe side contact base P8A
you will get the tube you can see at the pictures
I always send the tubes by priority registered mail with tracking number within hours after receiving payment