[Boatanchors] Johnson Ranger/Valiant Service Bulletins?

[Michael D. Harmon]

Hi,

I'm curious as to whether Johnson ever issued service bulletins for the 
Ranger (I) and Valiant (I) transmitters like some of the other 
manufacturers did for their gear.  I have what I believe is a pretty 
comprehensive set of bulletins for my National NC-303 and my Heathkit 
SB-102, but I haven't had any luck finding any for the old Johnson gear.

Thanks,
Mike, WB0LDJ
mharmon at att dot net