Okay, guys...I am now the proud owner of a R.F. Communications, Inc.
(is this not now Harris?) Model RF130-AR amp. There must be 100's
if not 1,000's of these things in the field. This amp is auto/manual tuned,
from 2-30 mhz CONTINUOUS coverage. Power rating is 100 mw in for
1000 watts out.
I have taken a picture of the plate choke and parasitic suppressor. The
choke is 25 turns on a 1.25 inch form; 1 inch long. I measured the L of
the thing, and it is 110 uh; so there is lots of ferrite under all that Teflon!
The parasitic choke is cute too....only one coil and one resistor for 2
tubes! the HV is fed at the center tap of the Lsup.
Have a look at: www.pixhost.com/pixp/philk5pc/Platechoke.jpg
(((73)))
Phil, K5PC
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