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1. HP-41 VASM Commented Listings (0 Replies)
2. Schematics for HP38E (6 Replies)
3. Deltadays and date functions. (28 Replies)
4. New (to me) HP 3421A DA/C Unit, some questions (12 Replies)
5. HEPAX Module Vol 1 New pdf (13 Replies)
6. HP 48GX helps build highest bridge in the world (0 Replies)
7. Presentation and question about calculators long term storage at low temperature (9 Replies)
8. Peculiar HP-41CV with RS 620-480 Logo (6 Replies)
9. Challenge - finding the last issue or two of key notes AFTER V8N2 (17 Replies)
10. Using HP-65 Sunrise/Sunset (10 Replies)
11. HP-67 a nearly hopeless case (10 Replies)
12. 0^0 = 1? (45 Replies)
13. HP 49g electric scheme (0 Replies)
14. TI-36x PRO Equivalent (9 Replies)
15. Number Display in Classic, Woodstock & Spice Series (0 Replies)
16. Looking for (idler?) gear wheel of HP-46 printer unit (21 Replies)
17. 25c (20 Replies)
18. MAY the FORTH be with you! (5 Replies)
19. Bug in chess ROM ? For Angel Martin (and others) (6 Replies)
20. HP50g or other: U. of Houston calc exams (32 Replies)
21. Too much De-oxit on the PRGM/ALPHA toggle key? (5 Replies)
22. User interface like Time Value of Money in 48GX (3 Replies)
23. 33c gsb debugging (3 Replies)
24. Manuals for TDS Survey GX card for HP 48GX (4 Replies)
25. HP 67: security cradle (7 Replies)
26. HP 67: charging of battery pack (19 Replies)
27. Update of ILCtrl v1.15 and ILScope v1.53 (0 Replies)
28. Path-Finding in Subway Networks (5 Replies)
29. HP-41 and video interface 82163a / 92198a (44 Replies)
30. M Registers on early HP Calculators (2 Replies)