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1. HP33C radix is a comma (18 Replies)
2. HP 28 misc... (11 Replies)
3. HP-12C+ show Error 9 (4 Replies)
4. HP Programming Form (11 Replies)
5. Hp25c (2 Replies)
6. HP-12C: The longest production run in the industry? (13 Replies)
7. Hp calcpad 200 (6 Replies)
8. HP 87: PLOT ROM B 00087-60929 (7 Replies)
9. SandMatrix Module becomes the "Mean Matrix Machine" (6 Replies)
10. Repairing HP-41CY TURBO from W&W (3 Replies)
11. 1089 Magic Trick (4 Replies)
12. Question on '71B Hardware Interfaces (11 Replies)
13. Mardi Gras True Fibs (5 Replies)
14. Soccer Tournament Predictor (6 Replies)
15. HP program forms (51 Replies)
16. Question regarding HP41C Power Up Status circuit (3 Replies)
17. Last 71B? (41 Replies)
18. Multiline HP15C (30 Replies)
19. HP 82104A Card Reader Serial Numbers (9 Replies)
20. HP-41 and 42s: AIP with or without sign? (20 Replies)
21. Seeking repair recommendation for HP 67 (3 Replies)
22. Your best deals (82 Replies)
23. What about a "SCI ALL" format? (6 Replies)
24. 28S Heat stake size? (Repairing a mostly working 28) (6 Replies)
25. HP-41C HP-IL REMOTE & LOCAL commands (9 Replies)
26. What good is an HP plotter? (37 Replies)
27. 41CL Quiz: Determinant of 30x30 anti-Identity matrix (54 Replies)
28. What Secrets the Bisection Method Hides? (9 Replies)
29. HP41 C Math I Pac (3 Replies)
30. Multi (i) register techniques help, please. (16 Replies)