A Community Devoted to the Preservation and Practice of Celestial Navigation and Other Methods of Traditional Position-Finding
From: Greg Rudzinski
Date: 2017 Nov 2, 13:20 -0700
Tamaya NC-77 are more common and perform the same functions. The nautical almanac feature requires 117.MMdd entry for 2017 month and day. 2018 would be 118 etc. Here is a link to one on ebay. If patient $50 will get you a good example.