HP41 Repair: A beginner's guide to repairing your HP41 calculator

The Calculator Store

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You had a HP41 many years ago, and it is laying damaged and corroded in a cupboard; or someone has given you a non-working unit, but you're unsure about what to do with it...then, we have good news for you. In our experience, up to 90% of HP41 non-wor…