Was going through my Pano collection - since forever till today - threw everything away this weekend after efforts for months to have someone take the whole collection but no takers - and I came across the November 1978 edition with the cover highlighting the topic of 914 to 914-6 conversion page 39.
I looked and looked to see if it is filed under some thread to no avail. Correct me if I am wrong.
If you want the article let me know and I can send a hard copy or maybe someone can digitize it - I am not very good at that.
Article is by John Godspeed and about 9 pages of the old Pano small format.
Don't know if it is comprehensive but has part numbers, etc, etc.
Let me know.

I am close by in Amesbury. Would be glad to scan it and return it to you. Sounds interesting.

I would love a copy of that Pano article.
Will happily pay you some money for it if you can make a copy for me.
Thanks
-Doug Oregon