Is this block diagram on the Internet?
The 6500 and 6700 use the Analog Devices AD9467 ADC. There is more information in the Hardware Reference Manual (such as specs and a couple more diagrams). Also, Flex might be able to give you additional parts ID’s if you ask them for specifics. All this could be added to the diagram, or used to supplant the diagram, with the help of Power Point, etc. Between info that was provided here, the Hardware manual, and additional info that Flex might provide, you might well be able to construct your own diagram to satisfy your authorities.
The information you need is on this "preliminary" document.
This assumes the 6500 was built with these devices. A block diagram is provided as are the key part numbers. The final PA transistors are "100W push-pull pair of RD100HHF1 MOSFET transistors" quoted from the N5PA website
who also had the link to the "preliminary" datasheet. A great website!!!
The RF preamp part number is also provided.
A part number for the Log Power Detector as part of the PA is shown. This seems the foundation of APD !
Any other help we can provide please ask...
The 6500 is a very nice radio, I can not imagine a better one, expect a dual SCU (two independent units).
Tim // k3Tim / 7
add RF diagram: