Mike's PCjr Page

Both of your drives are by Qume, and I’ve found that these often need mechanical help as well. The clean-the-heads-and-rails routine is the least of it. If you get a drive that isn’t already known to be in working condition, it may not be able to spin a disk at the right speed or at all. (To fix th...

If you are interested in picking up a Hotshot II to check out for yourself I did spot this https://www.ebay.com/itm/Vintage-IBM-PCjr-Model-4860-Computer-with-jr-hotshot-ii-Untested-JRHOTSHOT/233643117847 dandy thanks! i'll bid on that! Brutman - if i win the bid on that, and write up some documenta...

I hope you figure out the problem, I have 2 JRs with JRCaptains and they dont suffer from this problem and so I guess I'm no help.

If you are interested in picking up a Hotshot II to check out for yourself I did spot this https://www.ebay.com/itm/Vintage-IBM-PC ... 3643117847

There are a couple of ways around the JrCaptains power supply. 1) I found this in a old PCJr newsletter from 1991 and I use a modified version of it and just run a 5 volt DC line off the same place the floppy is powered to the JrCaptain, I found this works if your powering your JR with something oth...

Yep - Rapport == Racore == Quadram. All of those expansion chassis are the same maker. I think that Rapport changed their name or was bought by Racore. Quadram just licensed the design to fill out their product line. They included different, but equivalent software. The hardware is the same as the ...

Bought one of the CGA2RGB convertors on Ebay about 5 mos back for $30 Now on Ebay (only 1 seller it seems ) they are $50 what the Heck ?? See for me it was the other way around... I watched this item for months and months on ebay at $50 and didnt want to pay that much. After watching it for about a...

Welcome to the site... :D Were you able to get a PCjr? If not dont worry they seem to drop into your lap if you tend to wait, somehow over the last 1.5 years I was only looking to get one PCJr and now I somehow have 4 working units and 1 non working unit that I'm going to repurpose its case into a m...

If your other PCJr is going to use a pico power supply you can just run a 5 volt line and power your Tecmar Jr Captain off that. I have 2 Tecmar JR Captains and one of them I just ran a 5 volt line off the Jr and power it that way, the other Tecmar JR Captain came with an original Tecmar power suppl...

Well the board I have that I got with no socketable chips and was giving me 2 beep error seems to be doing just fine. I got no idea why but it decided to start working perfectly (knock on wood) for the last day or so.... Hope you have some luck with that board and congrats on what sounds like a cool...