[Johnson] Using the Viking II w/external Modulator

[Rich Soennichsen]

It looks like the "Figure B" schematic in the manual may be the way to
go, it drives a 500 ohm input which is what I need.

Could someone take a look at that diagram in the Viking II manual?  It
shows a switch that you add to switch between normal operation and
driving an external modulator.

With the switch in the DOWN position (driving external mod) the
diagram does not make sense.  If you look at the bottom center of the
diagram, it looks as though the line representing B+ should be
connected to the line labeled "Gn-Yel" where they cross.

I have drawn it out and that seems to be the case, could someone verify this?

Also, there is an inductor on the output labeled L1 4-10 inch VHF
choke.  What is a 4-10 inch VHF choke??

Thanks
Rich