[WTS] 16K SRAM cartridge with RAM-disk BASIC extentions TECALL TM220

Yes, i was curious and opened that one i will keep for myself (it has case with screws so it was pretty easy to open):

and after reading the manual i think that the bios of it is quite non-trivial :) especially the kind of key-value store for basic variables

So far: 13 cartridges were sent in three parcels (one was 1kg and has 10 ones, thanks @hamlet), 2 are reserved, 3 or 4 available (i haven't decided yet if i keep two for myself or only one)

UPD: two reserved ones already paid while i was writing message

@ Manuel: local flea-markets sometimes contain some treasures. I was surprised as well.

They have special commands for working with files, like CALL RFILES, CALL RSAVE, CALL RLOAD etc, so it not a disk drive emulation, and thus no boot sector - not possible to boot DOS.

P.S. But i wonder if games which can store your progress could be patched to use this one for saving data

I believe I have one of these - will check this evening - at least that label looks very familiar.

Will sell, if someone wants it. Especially I would recommend someone in Finland getting it due to shipping costs...