VR102 Valve

[pwdrive]

That's an interesting question, Lawrence!
That's not a valve I have come across before.
The RCA datasheet I just found in the web says each half of the 6F8 has the same characteristic curves as a 6J5.
Andy

Hi Andy, I came across the 6F8 when trying to see if there was a substitute for the elusive BL63/VR102, I found the basic data in my Radio Vlave Data book (Iliffe) Saw your question on another forum, the VR102 seems to be a one off application so far as I know.

6F8 =
Heater: 6.3v@.6A
Va: 250v
Vg: -8v
Ia: 9 ma
Ra: 7.7k
Ma/V: 2.6

Base:

1: m
2: h
3: a1
4: k1
5: g(2)
6: a(2)
7: h
8: k(2)
T.C: g1

I don't know if the BL63 is working in my receiver as I have not delved into the DF section as yet.

Lawrence.