[BC] Assistance With A PI Network Calculation

[Tom Dimeo]

I was going through my junk box trying to determine what kind
of AM transmitter I might be able to build with available
parts.  I came up with enough parts for a final power
amplifier using three 1625s (12 volt version of the 807) in
parallel.  Wonder if someone could give me the approximate
values of the input and output capacitors for the PI network
at 3.8 MHz?

The 1625s will have about 700 volts on the plates with 300 MA
which is a plate load of 2333 ohms.  The output of the PI
network will of course feed 50 ohms.

Thanks,

Tom