Search found 205 matches

by stephen_usher
13 Oct 2019 15:59
Forum: SOFTWARE
Topic: New tape cleaner tool
Replies: 45
Views: 5974

Re: New tape cleaner tool

It's impressive stuff.
by stephen_usher
13 Oct 2019 10:03
Forum: MEMOFEST 2019
Topic: Memofest 2019 at Andys
Replies: 13
Views: 882

Re: Memofest 2019 at Andys

Thank-you again Andy for the hospitality and the amazing ROM board.

What a fun and informative day. I felt like the dunce in the room with all the talent in the room.

At for the multitude of Kelly's, they were the 1980s model. :-)
by stephen_usher
11 Oct 2019 21:20
Forum: MEMOFEST 2019
Topic: Memofest 2019 at Andys
Replies: 13
Views: 882

Re: Memofest 2019 at Andys

It's tomorrow! :-)
by stephen_usher
09 Oct 2019 16:37
Forum: MEMOFEST 2019
Topic: Memofest 2019 at Andys
Replies: 13
Views: 882

Re: Memofest 2019 at Andys

The web site doesn't give start/end times. I'm guessing afternoon and evening?
by stephen_usher
06 Oct 2019 21:13
Forum: INTRODUCE YOURSELF
Topic: Pedro Torres from Portugal
Replies: 4
Views: 155

Re: Pedro Torres from Portugal

Welcome! The dual serial card doesn't actually have a floppy interface merely a connector to allow it to interface with the FDX floppy drive and 80 column display unit. If you do want a virtual floppy drive interface, it seems that there's still a couple of CFX cards available: http://primrosebank.n...
by stephen_usher
06 Oct 2019 13:26
Forum: MEMOFEST 2019
Topic: Going for free...
Replies: 0
Views: 146

Going for free...

I'll be bringing along with me an almost complete set of 74LS chips for the MTX which I bought in case I'd fried them when I accidentally put +20V down the ground line of my MTX500. Thankfully I didn't need them as the GAL seemed to act as a fuse and take all the current. I'll also have a spare TMS ...
by stephen_usher
01 Sep 2019 16:40
Forum: HARDWARE
Topic: Resurrecting an MTX500.
Replies: 226
Views: 15529

Re: Resurrecting an MTX500.

No more issues! It looks like it's a fully functional machine now. (OK, the keyboard switches bounce a bit, but are getting better. To begin with most didn't work at all. Mostly fixed with switch cleaner/lubricant + working them a lot.) I must admit that I've not tried loading a tape, but that can b...
by stephen_usher
01 Sep 2019 15:53
Forum: HARDWARE
Topic: Resurrecting an MTX500.
Replies: 226
Views: 15529

Re: Resurrecting an MTX500.

It looks like it must have been a memory problem that the diag ROM doesn't pick up. I spent an hour swapping memory on one socket (fitted a sacrificial socket on top of the one on the board) and went through all the other memory chips I had, including a set of OKI 64Kb ones, and found all the chips ...
by stephen_usher
01 Sep 2019 13:49
Forum: HARDWARE
Topic: Resurrecting an MTX500.
Replies: 226
Views: 15529

Re: Resurrecting an MTX500.

Martin A wrote:
01 Sep 2019 12:55
Did the TIP ever get replaced ??
I don't believe it was in the end.

However, I've been soak testing the machine with 32K programs and it's rock solid. It's been running the port of "Comic Bakery" non-stop for almost two hours now without a hitch.
by stephen_usher
01 Sep 2019 12:38
Forum: MEMOFEST 2019
Topic: Memofest 2019 at Andys
Replies: 13
Views: 882

Re: Memofest 2019 at Andys

I plan to do so too... and bring my slightly misbehaving resurrected MTX500 with me for some diagnosis at the clinic.