[Boatanchors] Canadian Marconi CH25 Info Needed

[David Stinson]

Is anyone familiar with the Canadian Marconi CH25
HF SSB/AM transceiver?  Any documentation or
especially,
schematics?  Any parts sets?
It has two "12 Volt 6146"  8552 tubes in
the PA.  They have little 1/8th Watt resistors,
bypassed by caps, in the
cathode connection to ground, very likely to act 
as "fuses" to protect the finals against untuned 
condition- common in this type of service.
The color code on these little resistors is
 "yellow-ash-soot."  Anyone have a clue?

TNX OM ES 73 DE Dave AB5S