>? 36pF of Cout should pose no problem for a conventional tank -
>Provided the anode current is max. and C-tune has a minimum of <10pF. //
> It seems to me that those who propose using an L-match between the anode
>and C-tune, fail to consider that the added L also decreases the anode
>vhf-resonance. This could be problematic, depending on where the
>RF-grounded screen (or grounded-grid in cath. driven config.) resonance
>happens to fall.
Yeah but Rich, 36pF in Cout of a tube is a large amount of capacitance.
Depending on his output impedance, he may have a very difficult time matching
with that much capacitance and still get a Q that is overly large. With the
4-1000A, there is no way to match its high impedance down to 50 Ohms and still
get a good Q w/o doing this transformation.
73,
Jon
KE9NA
--------------------------------------------------------------------------
Jon Ogden
jono@enteract.com
www.qsl.net/ke9na
"A life lived in fear is a life half lived."
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