What sort of electronic test equipment do you have? I'd suggest a DMM, LCR, and Scope.
By testing, do you mean computers to load programs onto and see if those programs are working? Are you reselling software and need computers to match your selection?
I would skip the C128. If you want CP/M, look for another system that is even better suited for it, possibly one that handles many different disk formats.
On the Amiga front, I would aim for a 1200, perhaps with a Kickstart ROM switch. Second best would be a 600, in particular with one of the modern expansions though those are starting to make the 600 really useful and valuable so prices are rising fast on that one.
I don't see a single Atari computer in your lineup. Is that on purpose or did you forget to mention them? The preferred model probably is a YMMV matter, I would look for an 130XE while others swear for the 800XL and perhaps RAM upgrades if required. Of course you have the 16/32 bit ST/STE/whatever lines as well if you're so inclined.
Personally I'm biased towards the VIC-20 but it might not be relevant enough for you, in particular if you like to spread across manufacturers. I won't even bother mentioning a list of foreign import systems since those are not of your priority.
we have all the major test equipment in our shop already meters probes oscilloscope (standard stuff we use for testing and doing repair on pins and arcade boards)
as far as what
I'm going to be adding vintage software section , as well as selling the systems , and doing repair work
so I need to be able to test the most popular classic system software , and hardware before we put it out on the floor
as well as have a way to plug up our costumer's computers , so I can do diag work (still doing research into ins and outs of the computers some same some different to arcade pcb)
I'm always getting people bringing in console's without power, controllers , av cables ect so I expect the same once we start really getting into the classic computer side of thing
this is also for my personal (fun) and a new learning opportunity for me(love learning new old tech lol)
I think so far I have most of the common stuff our shopper base is going to have interest in
but since I'm new to the classic computer scene I don't want to miss something and end up with someone bringing in a crate full of software to sell only fr me to have to turn them away because I cant test it
I reached out to some of our regulars and some of my suppliers and have some interest as well as a source for most of what I have already , and a huge local collection of over 200 computers I'm working on right now (mostly apple//)
I'm a local only shop and don't deal in web orders or online sales so I don't need every available setup just what's going to be the most common
trying to get my store put back together after our nuts holiday sales but here is some pics I snaped today to update our website (already have a small batch of classic pc stuff I'm starting to put out lol cocktail arcades make good display tables lol) and lots of empty space right now for new goodies lol
I do want a Atari pc but after browsing ebay there are so many different ones I have no idea where to start lol
I grew up with the ti ,tandy, and apple2 and had friends that had commodore stuff so I started with that
no idea on the Atari stuff , Amiga , and the ibm compat stuff (went from apple 2 straight to p4 era computing, and spent the time between getting stoned and partying lol so missed everything in that time period )
oh yea also
I'm definitely getting a vic-20 for my personal fun looks like games are super cheap for it after spending the past week looking at every ebay auction for vintage pc stuff lol
Edited by discgolfer72, Wed Jan 3, 2018 6:27 PM.