[Diverted]

Thanks Morzh. Correct on that. No voltage on the interstage primary. It's not open; reading about 185 ohms. Spec calls for 475 but this difference was discussed further up in the thread; others who had Heyboer make new interstages for them noted the same issue; thicker gauge wire.

Working now to shoot/upload some scans of the schematic. Thank you.