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Search: Posts Made By: Pops Racer
Forum: Altair 8800 01-03-2009, 10:16 PM
Replies: 2
Views: 12,439
Posted By Pops Racer
Altair speaks Basic!

Well, I got my 2SIO card working great last night and now thanks to Geoff Harrisons boot loader instructions (http://www.solivant.com/altair_bootloaders/index.php), we are running 4K Basic! Yay :) ...
Forum: Altair 8800 01-03-2009, 07:05 AM
Replies: 13
Views: 218,286
Posted By Pops Racer
Problem Solved!

I did some digging to find out why the IN 020 was giving me 377 (all ones).

I thought there might be a problem with the 8T97 buffers and the SINP signal. So out with the cheapo 10MHz scope (that...
Forum: Altair 8800 01-03-2009, 04:34 AM
Replies: 13
Views: 218,286
Posted By Pops Racer
Cool - I have wired it the way that Grant...

Cool - I have wired it the way that Grant descibes and when I run the echo test I get continuous spaces on the terminal and nothing shows when I type.

Have the board strapped for I/O 20/21 octal....
Forum: Altair 8800 01-02-2009, 11:54 PM
Replies: 13
Views: 218,286
Posted By Pops Racer
Oh yeah! :D I did that yesterday - toggled in...

Oh yeah! :D I did that yesterday - toggled in both songs and got an old cheap am radio - very cool. :cool:

Now trying to figure out how to connect 2SIO to PC. I suspect both circuits are DTE and...
Forum: Altair 8800 12-31-2008, 10:46 PM
Replies: 13
Views: 218,286
Posted By Pops Racer
Basic Altair Kit completed

Hi all,

Finished my Altair 8800 yesterday! Hurray! It would not run when first powered up, examine did not work, reset caused machine to free run. So I suspected there was a problem with D/C to...
Forum: Altair 8800 12-31-2008, 10:26 PM
Replies: 5
Views: 12,033
Posted By Pops Racer
L1 and L3 ferrite beads on 4MCS

Hi all,

Just halfway through assembling my 88-4MCS. MITS instructions call for 2 ferrite beads. My kit came with 1 ferrite bead and that is correct as far as Grant's packing list. For now I will...
Forum: Altair 8800 12-26-2008, 11:04 AM
Replies: 13
Views: 218,286
Posted By Pops Racer
Hi Geoff, Yes it has been fun so far. 800...

Hi Geoff,

Yes it has been fun so far. 800 pins were soldered on the motherboard yesterday. I got the 18 slot with 8 slots supplied. It is a beauty!

Today, I worked on the D/C board - just...
Forum: Altair 8800 12-24-2008, 09:01 PM
Replies: 13
Views: 218,286
Posted By Pops Racer
Re checked the hardware package. Only things I...

Re checked the hardware package. Only things I could not find were the 6-32 1 1/8 and 1 1/4 bolts. Everything else is there. Not sure they are critical components.

Cheers,
Kelly
Forum: Altair 8800 12-23-2008, 06:15 AM
Replies: 13
Views: 218,286
Posted By Pops Racer
Hi Grant, All good, yep those axial caps are...

Hi Grant,

All good, yep those axial caps are really small and the manufacturer did not bother printing the multiplier (0). I checked a couple of websites (ask Prof. Google!) and 22J is also ok for...
Forum: Altair 8800 12-23-2008, 02:48 AM
Replies: 13
Views: 218,286
Posted By Pops Racer
Altair Kit #33 Arrives

Hi all,

Altair Kit Serial #33 has landed in Australia. It arrived yesterday. Silly FedEx - my phone numbers were on the label, yet they could not contact me until Friday last week, after holding...
Forum: Altair 8800 02-12-2008, 01:33 AM
Replies: 4
Views: 22,902
Posted By Pops Racer
G'day PacMan, I was looking over my...

G'day PacMan,

I was looking over my schematics for the 8080 CPU card, the outputs of the 8212 are buffered by 2 8T97s, G and H, and those are gated by ICO. I wonder if there are any problems...
Forum: Altair 8800 12-20-2007, 12:18 AM
Replies: 11
Views: 25,822
Posted By Pops Racer
Question Hi Grant, Is there any update on the next...

Hi Grant,

Is there any update on the next run of 20? Could you tell us where they are up to, e.g. waiting for cases, cards, etc?

I can't wait for my kit! :D

Cheers from downunder,
Kelly...
Forum: Altair 8800 11-23-2007, 06:36 PM
Replies: 2
Views: 10,959
Posted By Pops Racer
Thanks Geoff! Very useful web page. Kelly

Thanks Geoff! Very useful web page.

Kelly
Forum: Altair 8800 11-23-2007, 05:49 AM
Replies: 2
Views: 10,959
Posted By Pops Racer
Information on 2SIO

Hi all,

I have been searching and googling for some information / schematics / manual for the 2SIO board.

Just wondering if anybody here might have some electronic documentation for the 2SIO?
...
Forum: Altair 8800 11-15-2007, 06:58 PM
Replies: 11
Views: 25,822
Posted By Pops Racer
Reservation

Hi Grant,

This is a follow up to my e-mail yesterday. Please reserve an Altair 8800 kit for me.

Thanks!
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