Search found 57 matches

by sascha2000
Wed Nov 14, 2012 9:52 am
Forum: Hardware
Topic: Lambda 8300/Power 3000 Mutlirom
Replies: 44
Views: 87928

Re: Lambda 8300/Power 3000 Mutlirom

UPDATE:

I have now a working proto. Now we go in the following direction:

* Use Lambda Keyboard + Reset button to change the ROM configuration. Soldering needed.
* Optional use external switches to change the ROM configuration. No soldering needed.
* Design it in a way to remain ZX81 compatible.
by sascha2000
Thu Nov 08, 2012 9:53 pm
Forum: Hardware
Topic: Lambda 8300/Power 3000 Mutlirom
Replies: 44
Views: 87928

Re: Lambda 8300/Power 3000 Mutlirom

Hello,

I got now from 4 ZX-TEAM members the feedback that they want to purchase such a MultiRom PCB.

So I'll start this project now. The progress I will document here in this thread.

Regards
Sascha
by sascha2000
Thu Nov 08, 2012 9:18 am
Forum: Hardware
Topic: Lambda 8300/Power 3000 Mutlirom
Replies: 44
Views: 87928

Re: Lambda 8300/Power 3000 Mutlirom

Hello iturbez,

its a ZX81 clone from Hong Kong.

Just have a look here: http://k1.dyndns.org/Vintage/Sinclair/8 ... ng%20Kong/

Regards
Sascha
by sascha2000
Wed Nov 07, 2012 8:55 pm
Forum: Hardware
Topic: Lambda 8300/Power 3000 Mutlirom
Replies: 44
Views: 87928

Re: Lambda 8300/Power 3000 Mutlirom

Hello, we are currently discussing in the german forum, if should produce a small quantity of PCBs, about 4-8. (Even more could be produced, which may not be realistic ;) ) If we get 8 orders price would be about 8€ +shipping per pcb (estimated), if we only get 4 orders price would be about 13€ +shi...
by sascha2000
Tue Nov 06, 2012 8:58 pm
Forum: Hardware
Topic: Lambda 8300/Power 3000 Mutlirom
Replies: 44
Views: 87928

Lambda 8300/Power 3000 Mutlirom

Hello, after a long time of absence I had little time to solder a Multirom PCB for my Lambda. The following ROMS are currently burned: Lambda 8300 ROM modified ZX81 compatible.rom Lambda 8300.rom Power 3000.rom Power 3000 ROM with colour kit commands.rom Just have a look here, its in german however ...
by sascha2000
Wed Jun 27, 2012 9:29 pm
Forum: Development
Topic: The music-album made on ZX81+ZXpandAY+MrX! :)
Replies: 29
Views: 10795

Re: The music-album made on ZX81+ZXpandAY+MrX! :)

>Haha, yes - me and Sascha2000 because we were driiiiiiiiiiiiiiiiiiinkiiiiiiiiiiiiiiiiiiiiiiiing! ... and we developed the idea of the 6 channel sound, if I remember correctly. Didn't you present me some turbosound spectrum music at late night???? :mrgreen: :mrgreen: :mrgreen: >Although he might hav...
by sascha2000
Wed May 30, 2012 1:26 pm
Forum: Development
Topic: What's this then?
Replies: 109
Views: 558654

Re: What's this then?

Hello,

I added chapter "7 Six Channel Sound (Turbo-Sound/Turbo-AY)" for 6 channel sound on MrX card to the Manual.

For those who are interrested, you can download the manual here:

http://www.rwapsoftware.co.uk/downloads ... l-v005.pdf

Sascha
by sascha2000
Tue May 22, 2012 12:03 pm
Forum: Development
Topic: What's this then?
Replies: 109
Views: 558654

Re: What's this then?

>Also are the three channels from each "AY" being separated (to make a total of 6 channels) and going to a mixer, or are all output channels being connected together to create a mono channel, or are the two "AY"'s feeding as a 3 + 3 stereo output? On the MrX there is a port called K3 which offers ea...
by sascha2000
Tue May 22, 2012 9:12 am
Forum: Hardware
Topic: ZX81 I/O Ports
Replies: 9
Views: 6985

Re: ZX81 I/O Ports

Hello, from Siggi I got this: IO-MAP CS0: $07 ZXPAND $17 $0F MMC-IF Card Select, ZON-X81 (Data-Write) $1F MMC-IF PIPO, ZON-X81-Clone (Data-Write) CS1: $27 8255 Port A $37 8255 Port C $2F 8255 Port B $3F 8255 Command (WO!) CS2: ("PIO2") $47 PIO Port A $57 PIO Command A $4F PIO Port B $5F PIO Command ...