[Amps] Tuned Input for G-G 50Mhz amp

[TL_IARC]

Hello all
Many thanks to all who replied and educated me. 

One thing is sure now, I have decided on the "Pi" for input.

Now if anyone has a good source for a 3-30 pf 5-7Kv vacuum, or wants to depart with one,
pse advise. (that's for the output "Pi" of course).

Happy Easter everyone
Isaac, 4Z4TL (4z4tl at iarc.org, also ernie at netvision.net.il)

P.S: 
It seems that somewhere  along the line I have put 2 threads on the same subject:
("Pi" or "Tee" input circuit for a 50Mhz,  Tuned Input for G-G 50Mhz amp). Pse excuse me.