[Hallicrafters] SX-117 VFO output

[Jeff]

Does anyone know the specs on the VFO output of the SX-117?

According to the manual, it has a 6-6.5 MHz output, but I can't seem to 
find anything on the output level.  I tried hooking it to my Hammarlund 
HX-50A external VFO input, but I don't seem to be getting anything out 
of the 117.  The external VFO input on the HX-50A is fine; I'm driving 
it with a DDS VFO in stand alone mode.  The HX-50A is looking for the 
same frequency output at approximately 3v.

I was looking to try to get these two rigs to work in transceiver mode.  
For some reason, Hammarlund receivers weren't built to do this.

Appreciate any thoughts or advice.