Best wishes with this, Alan. I have yet to find the round tuit to help me work on this some more. Lots of pressing projects in the past year have kept it dormant in the corner of the workshop/hamshack upstairs. Now if only I could convince my wife that it's more important than the honey-do list...
Also, unforunately it appears the YIG oscillator has gone out again on my trusty 8753D, so I've also lost the only piece of test equipment I had that I could press into service to generate the signals needed to troubleshoot this more. So, it's kinda on a perpetual standby until either I get the chance to fix it all or get fed up with it all and throw it all in the trunk of a person who could use it, in the trash, or in the lake as an anchor for my boat.
