The 4-125A tubes are supplied
Filament voltage at 5.0V @13 amps. adjustable by variac control.
The High
voltage for the plates is 3000 VDC at 200 MA.
available from a "Rescued Savant Power supply deck",
the
primary on the H.V. transformer is strapped
for 115 or 220 and is running on the 220 VAC currently. The
screen and
bias supplies are regulated and adjustable.
This unit runs in class "C" and
also
class "AB2". I selected meters to monitor
the proper operation of the amplifier
The grid current meter is a 0-100
milliamp meter, the screen current meter
measures 200 milliamps and there is a
10Hy 110 milliamp choke in the screen
line to the amplifier. The plate current meter measures 0 - 300
milliamps.
If you get the
chance to acquire one of these don't pass it up, its
a great way to get High Power on 6 meters for
minimal effort. The units
are virtually indestructable and will run in CCS mode all night long.
See
you on 50.4 MHZ
and listen for
the WB2FCN Beacon on 50.25 CW when you hear
that you'll hear this "Mighty-Monster"
The antenna relay assembly, does this
look familiar?
You need to monitor the drive to this rig
so I use a 100 watt slug between
exciter and amplifier
A 250 for the Johnson 6N2 and
Heathkit Seneca
direct to antenna.
And for the full output of the
amplifier, mid-scale of course!