[Boatanchors] Millen Tx Question

[J Forster]

Is anyone familiar with Millen transmitters?  In the estate of a SK I'm
helping the widow to disperse, there is:

Millen RF Power Amplifier  90881  (no tubes)
Millen 40 Watt Modulator   90831  (no tubes or knobs)

Do they go together? Also, any ideas of their values. Neither have tubes
and are quite dusty, but otherwise appear complete and decent.  There is
no PS with the transmitter.

Thanks,
-John