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Announcements
Threads
- HP 50g/HP 49g+/HP 39gs Battle of the beams -- Increasing IR communication range (6 Replies)
- Die shots of all integrated circuits of an Hp41c (29 Replies)
- LIFUTILS: reading and writing HP9114 compatible floppy disks (3 Replies)
- HP-35 & SL-4 (2 Replies)
- HP-71B Changing Lower and Upper Halves (7 Replies)
- Successfully changed the broken fan of a HP-9825B (2 Replies)
- HP41CL newbie question (31 Replies)
- Is this 12C HP is a true and original ? (21 Replies)
- HP-50g plots of cube roots (no negative domain displayed) (2 Replies)
- Hand-Drawn Barcodes for the HP41 (15 Replies)
- HP21 - What's the best way to clean it? (3 Replies)
- Service Manual for SPICE series? (Dead 34C) (Repaired) (7 Replies)
- Challenge: XCAS code to anothers CAS (0 Replies)
- Broken switch metal rebuild? (0 Replies)
- 50g: an interesting RAND anomaly (21 Replies)
- [math puzzle] Payment in fraction of gold bars. (1 Reply)
- Programming issue HP41CX (59 Replies)
- New to me HP35s (0 Replies)
- Help with DCF and Cap Rate Problem (2 Replies)
- Spice without serial number (0 Replies)
- Returning more than 12 digits for a result (3 Replies)
- HP 11C internal number format? (4 Replies)
- 41CX halfnut keyboard not responding (12 Replies)
- Weird Command in a Program (12 Replies)
- Restore HP-29C yellowed case (5 Replies)
- HP-29C Low-battery warning, help needed please! (6 Replies)
- Celebrating Pi Day with a pair of 41s (3 Replies)
- HP 1000cx and sandisk flash drive (8 Replies)
- Happy Birthday Charlemagne (14 Replies)
- I've just repaired a 12C! (12 Replies)
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