Posts by nilseuropa

My newest thing is from konnexus is an Epson Portable PC ( Equity LT Q150A ) for I am grateful as it was fun to restore.

It is an IBM XT compatbile powered by a rather beefy V30 running on 10MHz, it has 640K RAM a 720k floppy drive and a 20Mb HDD, CGA graphics adapter and lots of ports.

Although the hard drive was a bit rusty, and all caps were leaking, it was a very satisfying fix.

After cleaning and recapping everything, it just started to work like charm.

The display is optionally removable, the whole thing is over-engineered and developer friendly ( dip switches everywhere )

( Notice the very sad and huffish 64C sitting jealously on the bench, while I am playing the games of my childhood. )

Quote from gpospi

Mein neuestes Etwas ist mangels Laufwerk komplett nutzlos (wenngleich auch meine sonstigen Oldtimer-PCs keinen echten Praxisnutzen mehr haben). Aber irgendwie ist das Ding einfach cool, drum wollte ich es haben:

Und wer bisher dachte, 8" Disketten wären schon groß:

I have an Apple II controller card for the Philips Laser Magnetic Storage. No drive though...

Quote from tofro

Quote from capmilk

Quote from tofro

Leider 10 historische PCs ihrer originalen Tastatur beraubt...

Deswegen sind wir doch hier, um zusammenzuführen was zusamengehört.

Würden die Verkäufer nicht auseinanderruppen, was zusammengehört, könnten wir uns viel Aufwand sparen

sure, but isn't seeking out components a thrilling quest that we shouldn't deny ourselves out of convenience? 😄

I mean, I have waited for C= stuff to show up for months basically and somehow I was happier when I was able to acquire them.

Nonetheless these are just keyboards, but I wouldn't run away if someone thrown them st me. 🙂

Thanks Toast_r,

I'll check if the Mitsubishi drive has the same pinout and give it a try.

Dear all,

this is more like a general question - I have recently acquired an Epson Portable PC, to which I would like to connect an external 5.25" drive -

is there a standard pinmap for DSUB25 external floppy drives, or it varied by manufacturer and device types ?

If the latter is the case, do any of you know what would be the correct wiring on an Epson PC?

Thank you in advance,

nils

You could also program the NES in C with the cc65 compiler.

nesdoug

NES Programming with cc65

nesdoug.com

I have just tried Turbo Rascal, and I am very happy with it.

Turbo Rascal Syntax Error (TRSE) – LemonSpawn

Hello,

I have an Atari 400 NTSC with 48k RAM. I thought it was working within parameters as it was loading programs from cartridge just fine.
Today I have decided that I do some software exploration on it as this is my first Atari and I have no idea about it really. I have built an

SIO2PC adapter and enslaved my PC as drive emulator with RespeQt. This setup seems to work fine.

When I started to test out demos written for the 400/48k NTSC realized that only some of them will load, most of them will

freeze the machine, while others run but with jumbled screen content.

Like the Swan demo here:

atari.gif

I flipped through the service manual to figure out what to poke, but seems like there is no way to do diagnostics without a SALT cartridge.

Or is it?

( tried several diag programs i have found online, none of them will start )

Thanks for your help in advance,

m.

We will continue the work to save his legacy and put it on a persistent display in an art gallery.

This is the last thing he sent me ( signed his Apple II programs that I have recovered ) - along with some dedicated books he wrote.

I was also hesitant to cut the traces, it would have been nice if I knew about this mod first.

Quote from discmix

OK, scheinbar habe ich die NTSC (US) Version. Mal schauen wie ich das Kabel an meinen Fernseher bekomme.

Hey,

i have also got a 400 recently as a gift and it turned out to be NTSC. For PSU any general 9V AC / 3A transformer should be good.

I did the composite video modification of "Sal Kjmann Esquivel" and got rid of the RF cable.

It is pretty straight forward and can be done in 10 minutes.

To handle the NTSC composite output I have tried three options and all are quite acceptable ( best to worst

LVDS Controller  


NTSC/PAL converter


Composite to VGA adapter 

Or you can follow up the quest of MicrotronicHamburg and build an RGB converter.

cheers

Quote from SectorheaD

ISS Individual Software Service Program Data Recorder for Personal Computer Model No: CS-666

Sieht aus wie ein Sharp RD720. (ich war zu spät)

I have been playing around with Cynthcart for a while now and I really love the simplicity of the interface ( in contrast to Prophet ). I have a 128C setup with Datel MIDI interface, but I find it hardly portable as it requires a MIDI controller, and a bunch of cables, so I was pondering if I can make a more compact version for live performances.

My first attempt was a rescued breadbin, that I've got in a terrible condition ( missing keys, case broken, drilled, motherboard hacked to pieces ).

The musical keys are just 3D printed, the holes on top covered with paddle pots and a ROM switch knob. It has got an integrated 5GHz AV transmitter and runs on batteries. Unfortunately the SID gave up in it at some point and I didn't bother to find another one since. ( i will fix it, when someone throws a SID at me )

I liked it a lot, but I was missing the actual musical keys as they feel more like an instrument. Last week I was lucky and I have got another 64C for free and a non functional MIDI controller for 6EUR.

Their sizes were matching up pretty good. There was a good chance to fit the C64 MB into the MIDI case, but I just love the design of the 64C ( and this controller was particularly ugly in so many ways ).

So I ended up throwing out most parts of the MIDI controller and made an interface between it's key matrix and the PIA. This way the expansion port is free to plug in whatever cartridge I want ( Cynthcart. Always. But when not... games? ) I can use the keyboard as USB MIDI, and also the C64 as USB MIDI and I have a USB host if I want to connect an HID keyboard to use the 64 like a computer ( which it is, the best one ever ).

It is far from finished, I am still printing parts to cover the top of the keys and tinkering on the interface, but it generally works and I am quite happy about it, as it develops into something I think I have always wanted.

On this note, does anyone have by chance a beige numeric keypad to spare? I would like to organize access to all modulation functions on an external mini keypad, because I think any knob or button would just ruin the design otherwise.

cheers,

m.

I've resurrected a PS/2 P70. Had to recap the PSU, the mainboard and the floppy drive. Unfortunately the ESDI controller is nonoperational.

I've threw together a simple keyboard controlled monoSynth to test my card.

https://github.com/vulcanlogic/mimuSynth

If anyone has the time / spirit to fiddle around with it drop me a PM.

2x Getac M230 Intel L2400@1.66GHz / 4GB RAM / 256 SSD

Nice and smooth ~25sec boot time.

https://github.com/jbruchon/elks ?

Quote from Peter z80.eu

Also mit einem älteren PC und einem Adaptec 1542B habe ich das schon geschafft gehabt (man kann ja auch das BIOS des Controllers auf "disable" stellen, wenn man keine SCSI-Laufwerke benutzen will).

Ich habe dies auf mehreren Computern versucht, zuletzt auf IBM5150 ohne Glück. (Anadisk, Teledisk, IMD)

Unabhängig vom Double-Density-Controller erkennt der Osborne keine CPM-86-formatierten Disketten.

Ich konnte eine wertvolle Pascal- und Forth-Diskette mit Greaseweazle im SCP-Format sichern. Wenn ich die Bilder auf leere Disketten zurückschreibe, sind sie vom Osborne lesbar.

Ich wollte Bilder im Teledisk-Format schreiben, die im Internet verfügbar sind, aber wenn ich sie mit dsktools in das RAW-Format konvertiere, schreibt das GW sie nicht.

Jetzt kann ich mit diesem Double-Density-Controller versuchen, CP/M-86-Disketten zu lesen.

Quote from Peter z80.eu

Mit Double Density Board sicherlich auch als CP/M "Arbeitsgerät" ein toller Rechner, gefällt immer noch (das Gewicht des Geräts weniger).

Dieser hat einen Double Density Controller. Ich finde es jedoch sehr schwierig, mit einem modernen Computer kompatible Disketten zu schreiben.
Ich habe es mit Greaseweazle/Fluxengine und C128/1571 ohne Erfolg versucht. ( auch mit mehreren DOS-Rechnern mit Anadisk und Teledisk )

And another one

Turbo Pascal 2.0 !!

Trash to treasure and composite mod. ( It's NTSC apparently. )

Check this out: https://www.lovehulten.com/apple1.html

I've just got this nice Tank Mouse as gift from my friend.

I've been also playing with 8088 machines during this weekend. I've successfully restored a 5150 and a 5160 with a 20MB drive.
Data rescue procedure is in progress. There are a lot of TX4 documents on it. I have salvaged the IBM PCText v.1.5 that I've found on it,

it is a german edition if anyone is interested. ( I couldn't find it online. )

I have found an insect pin board on the street, now I have this.