[Moon-net] Input impedance of GI-7b and GS35

[Peter Voelpel]

The input impedance of the GI7 is about 40 Ohms, lower when driven higher.
The GS-35 between 25 and 40 Ohms, the lower value when driven hard.
Input capacitance shall be compensated for on any band however

73
Peter

-----Original Message-----
From: moon-net-bounces at list-serv.davidv.net
[mailto:moon-net-bounces at list-serv.davidv.net] On Behalf Of Kim Liljekrans

The Input impedance of a tube is almost infinite  of tubes in the 1 GHz
region !!

Its the surrounding components, who almost is the determine factor . So dont
think of the tube itselves.

I would say, that below ie 2-300 MHz dont thinkof it, but only of the
capasive part if any !