Forgot to mention , 2 of the 8460's were parts units , the 3rd was sold a good but no RF output , in the 1st page of testing the meter shows voltage , but once the manual switches to RF AM , FM then there is no meter movement .
Thanks for the link to manuals , was able to find one I need - IFR A7550 , that was also sold as working & is not , so have the manual coming .