I would contact Patagonia and explain exactly what you are looking for. I’m sure they will be willing to help. https://www.patagonia.com/shop/clothing-gear/?utm_source=google&utm_medium=cpc&u...-9gCF18YEbKZ8sKgxoC3SwQAvD_BwE
You will probably need to purchase a new battery with the same voltage and amperage as your old one, then snip old battery wires and plug from old battery and solder and tape them on your new battery. Not as hard as it sounds. Not familiar with soldering wires? Im sure someone could do it for you in about 30 seconds.
It could be the tape you are trying is damaged. Try a different tape. Could be the VCR is dirty and needs cleaning. Try placing a tape in player and ff to the end of tape, then rewind all the way. Then try playing again. If tape inst moving , it could also mean a belt broke or fell off inside,
it depends on the make and model number of the keyboard some do come apart and can be dis assembled and cleaned with an alcohol saturated cotton ball then allowed to dry thoroughly before reassembly. Other keyboards are somewhat sealed and very complicated to disassemble.