Hi River,
Welcome to the wonderful world of the Microbee.
You have a disk based none Premium Microbee from your description, most likely one of the latter MB1248 Mainboards with a DRAM Coreboard. Where did you get the idea of 128k from? Is there a 128k sticker on the cover?
Other than breaking into the monitor there is not a lot you can do as it stands.
Having a GOTEK is a great advantage, the Microbee uses Shugart interface and you will need to have it set to Drive 0, there are suitable images you can obtain from the repository here to test out your system.
Maybe start with the CIAB to get underway unless you are 100% sure of the 128k RAM.
Chickenman has a good guide on setting up and running a GOTEK on your Microbee.
Ernest
Welcome to the wonderful world of the Microbee.
You have a disk based none Premium Microbee from your description, most likely one of the latter MB1248 Mainboards with a DRAM Coreboard. Where did you get the idea of 128k from? Is there a 128k sticker on the cover?
Other than breaking into the monitor there is not a lot you can do as it stands.
Having a GOTEK is a great advantage, the Microbee uses Shugart interface and you will need to have it set to Drive 0, there are suitable images you can obtain from the repository here to test out your system.
Maybe start with the CIAB to get underway unless you are 100% sure of the 128k RAM.
Chickenman has a good guide on setting up and running a GOTEK on your Microbee.
Ernest