The Museum of HP Calculators

Repairs

Repairing It Yourself

• Information on HP batteries, and chargers.
• Information on disposable batteries.
• How to disassemble HPs.
• How to Fix Classic Models by Steve Loboyko. (A zipped Windows Write document.) Two people have complained that Steve never returned their calculators but, the information in the document is still excellent for the do-it-yourselfer. If you have trouble getting it from the source above, try this copy.
• Repairing an HP-41CX by Stefan Vorkoetter
• Pioneer Repairs by Paul J. Brogger
• Building a classic battery pack from scratch by Doug Jones.
• For parts or manuals, try HP at: (800) 227-8164

Having Someone Else Repair It

If you need someone to make repairs for you, you can try:

• Joe Rigdon at rigdonj@intellistar.net
• International Calculator Sales in Florida at 800-535-5692

For battery work specifically, you can also try:

• The NiCad Lady ($9 plus $6 shipping to rebuild a classic pack.)
• Dave Colver at dcolvera@cix.co.uk (Western Europe only.)
• Batteries Plus in Arizona at 800-677-8278
• Batteries Plus in South Dakota at 800-362-9833
• Battery Works at 800-707-7000
• Mille Et Une Piles at 34 rue Delambre, 75014 Paris, France

The Museum has not used any these services and can't recommend one over the others.

Go back to the main exhibit hall