I finally managed to get a PSU for a HP-97 that someone gave me, and powered it on today.
It all worked, but had the gummy card reader. I managed to successfully fix this using instructions found on the Internet.
After I reassembled the unit, I noticed that the key "2" wasn't that responsive, and unless I pressed it hard, wouldn't register.
I disassembled the unit, and got to the contact strips and separator sheets and cleaned all the contacts with alcohol and reassembled.
This has been a disaster! Initially all the small keys on the left-hand keypad wouldn't work. So I disassembled the keyboard again and checked the copper strips and made minor adjustments. In short, I've not managed to get it working properly again, and I've made a mess of the copper contacts sheet. It's a pain having to reassemble the whole unit, to be able to test whether the keys are working.
Is there anywhere that I can buy a new contact sheet or keyboard?
Does anyone have the skill to fix this mangled sheet for me?
Do I have any other options?
I'm sickened as the card reader works very nicely! That bit I did well.
Thanks
Nick