[AMPS] How to determine Driving Impedance

[Bill Smith]

I'm using Svetlana EL-509/6KG6 tubes in the Dentron
GLA-1000 series of amps but Svetlana does not publsih
the Driving Impedance of this tube.  I want to work
out a Tuned Input for four of these tubes in GG
configuration.

Anyone out there have any sugestions.
Thanks,
Bill Smith KO4NR

=====
Bill Smith KO4NR

--
FAQ on WWW:               http://www.contesting.com/FAQ/amps
Submissions:              amps@contesting.com
Administrative requests:  amps-REQUEST@contesting.com
Problems:                 owner-amps@contesting.com