[Boatanchors] Need Info on Johnson Valiant PTT Relay

[Michael D. Harmon]

I need information on the PTT relay used in the Johnson Valiant 
transmitter.  There's no information on it in the manual other than an 
EF Johnson part number (22-1307).

It's a DPDT (manual says DPST) relay which 1) applies primary power to 
the HV transformer and 2) grounds the keyer circuit.
The coil circuit loops through the internal jumpers in the 0C3 regulator 
tubes so that the PTT is disabled unless the 0C3's are in their sockets.
The coil voltage is derived from a voltage divider off the 300V low B+ 
line and according to the voltage chart should be 100-110V DC+ at 
key-down conditions.
The bottom end of the coil is connected to the "MAN/PTT" switch and the 
PTT terminal on the mic jack.
Since my transmitter was "hacked" when I got it, the relay was missing.
What kind of a relay should I be looking for?  Most of the surplus 
relays I've found so far have coil voltages in the range of 5V to 28V 
(AC or DC).
I know there are "sensitive" or "plate circuit" relays which are rated 
in ohms rather than voltage, but I assume that this refers to the load 
resistance for a tube used as an electronic switch.
I'm guessing that the contacts should be rated around 8-10A AC since 
it's hot-switching the primary of the HV transformer.
Should I just throw together a jury-rig DC LV supply and replace the 
relay with a low-voltage relay with appropriately-rated contacts?
I'm open to any and all suggestions!

Thanks!

Mike Harmon, WB0LDJ
mharmon at att dot net