Altair 8800C

[toml_12953]

Any plans to sell kits of these? It might take a while to track down all the separate parts on our own.

Is there a modern version of the cassette boards? Maybe interfacing your small cassette module from the Clone? The original two board set was very hard to keep in adjustment and required recalibration every time I added or removed any boards from the system not to mention being almost impossible to find in any condition working or not.

[AltairClone]

I don't plan to make a kit of the Altair 8800c. Based on input, each person's ideal system is going to be a bit different, so a single version of the kit wouldn't work well. I'll update the deramp.com website soon with information about where to buy the boards shown in the video.

The 8800 CPU replica is a bare board, I plan on selling the front panel board set as bare boards, the FDC+ and 88-2SIOJP are available assembled. New mother boards will typically be bare boards.

As I was finishing this computer, I realized the one hole in the "new Altair 8800" concept is the cassette interface. The easiest solution is the little Altair Clone cassette interface connected to a vintage serial board that can be strapped to look like the 88-SIO board (e.g., the SSM IO-4 board), or an actual 88-SIO board, of course - but those are quite rare.

If a number of people build these, I may create a full board that duplicates the Altair 88-ACR board set.

Mike

[toml_12953]

If a number of people build these, I may create a full board that duplicates the Altair 88-ACR board set.

Mike

How about an 88-VI RTC Vector Interrupt Real-Time Clock board? My goal is to run Timesharing BASIC and I'd need that functionality.
I have a saved search on eBay but these are rare.

[AltairClone]

This guy in the UK is making close reproductions of a number of Altair cards. He’s done the VI/RTC.

http://jmprecision.co.uk/shopping/start.php?browse=1

Mike

[alank2]

Hi Mike,

Do you plan on having a case + front panel board set ?

Thanks,

Alan

[toml_12953]

This guy in the UK is making close reproductions of a number of Altair cards. He’s done the VI/RTC.

http://jmprecision.co.uk/shopping/start.php?browse=1

Mike

That's great! Thanks!

[AltairClone]

Do you plan on having a case + front panel board set ?

Keep on top of updates at http://deramp.com/altair_8800c.html

Mike

[toml_12953]

This guy in the UK is making close reproductions of a number of Altair cards. He’s done the VI/RTC.

http://jmprecision.co.uk/shopping/start.php?browse=1

Mike

The 88-VI manual says there are three inductance coils are these the same as ferrite beads? It doesn't say what values they are or anything about them. Do you know what I should use? As you can tell, I'm not too familiar with electronics so this is confusing to me.

[AltairClone]

The 88-VI manual says there are three inductance coils are these the same as ferrite beads? It doesn't say what values they are or anything about them. Do you know what I should use? As you can tell, I'm not too familiar with electronics so this is confusing to me.

These aren't inductance coils, they're simply ferrite beads as you surmised. You can just put a wire across the holes and skip the ferrite bead.

Mike

[toml_12953]

On the Altair 8800c Front Panel board, what's the difference between switch S1 and S10-S25 other than the color (silver vs gold) Does S1 have a different voltage or current rating?