I have discovered that as a small seller, you do not really need to concern yourself with the seller rating. As a business, having a store and a large amount in sales, you definitely need to be!
eBay seller rating: what is it
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Alexandru Balasa Articles
How to sell on eBay: part 2
In...
How to sell on eBay: part 1
How...
Open a TopCat battery
The TopCat battery is fits the HP-91, 92, 97 and 97s series of calculators and a number of peripherals (printers 82143,m 82162, tape reader 82161) and is not designed to be refurbished, it is glued shut. Nevertheless since there are no new batteries to be bought, if you want a battery, you need to refurbish an existing one.
Open a Woodstock battery
The Woodstock battery is not designed to be refurbished, it is glued shut. Nevertheless since there are no new batteries to be bought, if you want a battery, you need to refurbish an existing one.
HP-41 Card Reader
The HP-41 family card reader (HP82104A) is a very useful accessory for storing and retrieving programs and data. The card reader presented here is in excellent condition, in original box with its manual. The device is recognized by the calculator as seen in the images. It comes with a number of used cards which will be very useful when testing it.
HP-71B
This...
Novus 650 RPN Mathbox
The...
Monroe 325 Scientist
Another beautiful vintage desktop calculator: Monroe 325 Scientist. This is a programmable desktop calculator, it has a printer included and it also has a cassette interface which allows connection to a Monroe 392 tape recorder.