— 73, and good hunting. If you are actually looking for this manual, search for the file name Digi_Di-166_Service_Manual_OCR.pdf on the Internet Archive or the Radio Museum database. Do not pay $45 for the “reprint” on eBay—it’s usually just the user manual.
Let me know in the comments below.
But it is a maintenance hog. Do not attempt a recap or alignment without the service manual. Digi Di-166 Service Manual