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More PockeTerms?

When will there be more PockeTerm boards available?
by Frotz661
Jun Wed 01, 2016 3:48 am
 
Forum: PockeTerm General Discussion
Topic: More PockeTerms?
Replies: 0
Views: 3978

Seeking logo artwork

Would someone please give me the artwork for the micro-altair faceplate logo? My local hackerspace has a laser cutter which can also be used to create blackened engravings.
by Frotz661
Feb Sat 20, 2016 11:14 pm
 
Forum: Altair 8800 Micro
Topic: Seeking logo artwork
Replies: 1
Views: 5982

Re: spring loaded reset toggle switch?

I received a new on-(on) switch from Jameco to replace the (on)-off-(on) RESET switch. Fiddling around with it some more, I think that the STEP switch should also be on-(on) because there's no connection on the other side of the throw.
by Frotz661
Feb Sat 20, 2016 11:07 pm
 
Forum: Altair 8800 Micro
Topic: spring loaded reset toggle switch?
Replies: 5
Views: 12262

Re: spring loaded reset toggle switch?

FYI, the part you want is actually 611-7108SYCQE . The other part is (on)-off-(on) whereas for the reset switch you want on-(on).
by Frotz661
Jan Sun 31, 2016 10:42 pm
 
Forum: Altair 8800 Micro
Topic: spring loaded reset toggle switch?
Replies: 5
Views: 12262

Re: Two serial ports?

Here's something using a 16550A UART: https://github.com/DavidGriffith/altairmicro-serial

I'm not at all sure it would work and would very much like comments and advice.

Vince? Are you still around?
by Frotz661
Dec Sun 13, 2015 4:04 am
 
Forum: Altair 8800 Micro
Topic: Two serial ports?
Replies: 9
Views: 20083

Re: 8800 Micro Disk Controller

FWIW, if you want an inexpensive and decent EPROM burner that will work with Linux, check out the MiniPRO TL866xx on Ebay. GPLed software for controlling it can be found at https://github.com/vdudouyt/minipro. The two variants of the MiniPRO are exactly the same, just the firmware is different. That...
by Frotz661
Dec Sat 12, 2015 6:16 am
 
Forum: Altair 8800 Micro
Topic: 8800 Micro Disk Controller
Replies: 4
Views: 11457

Re: Kit add-on ideas for the Altair 8800 Micro

I had a couple of ideas for add-ons that I think would be super neat for the Altair 8800 Micro platform: 1) Along the lines of the serial connector add-on, perhaps a PC speaker could be easy to adapt to the platform? My guess is that this would plug in to the expansion header, and would require a r...
by Frotz661
Dec Sat 12, 2015 6:10 am
 
Forum: Altair 8800 Micro
Topic: Kit add-on ideas for the Altair 8800 Micro
Replies: 1
Views: 5868

Re: Two serial ports?

For your board, I'd eliminate the second expansion connector and instead use a long-tailed socket. It would make stacking up more boards easier. The usual footprint of a DE9 connector pigtail is a 2x5 header, not a 1x9. If the memory and ramdisk board is made mandatory, then the serial board could b...
by Frotz661
Dec Sat 12, 2015 5:38 am
 
Forum: Altair 8800 Micro
Topic: Two serial ports?
Replies: 9
Views: 20083

Re: Two serial ports?

As I was doing the final assembly on my machine, I was tracing lines to rule out shorts. At that time I noticed that the traces for the serial port on the ramdisk board went directly to pins on the expansion connector. Then I looked at the schematic. That serial port is actually on the main board an...
by Frotz661
Nov Tue 03, 2015 8:10 pm
 
Forum: Altair 8800 Micro
Topic: Two serial ports?
Replies: 9
Views: 20083

Number 277 lives!

I received #277 as a kit two years ago and for assorted reasons didn't complete it until tonight. Now it's working, mostly.
by Frotz661
Nov Tue 03, 2015 6:39 am
 
Forum: Altair 8800 Micro
Topic: Number 277 lives!
Replies: 1
Views: 6195

Two serial ports?

Has anyone here successfully modified their machine to support two serial ports? I'd like to investigate making a tape interface. It seems that the original Altair tape interface was merely a serial board with a simple modem bolted to its back. The one serial port I have comes off the ramdisk board....
by Frotz661
Nov Tue 03, 2015 2:00 am
 
Forum: Altair 8800 Micro
Topic: Two serial ports?
Replies: 9
Views: 20083

Re: Any active, related to vintage computing, IRC channels?

Try #classiccmp on irc.freenode.net. There's always something interesting going on there.
by Frotz661
Nov Sun 01, 2015 2:41 am
 
Forum: Venues, projects and off topic stuff - NO SPAM
Topic: Any active, related to vintage computing, IRC channels?
Replies: 1
Views: 17438

For future expansion cards

I would like to recommend that future expansion cards use long-tailed header sockets for their connectors. That way boards can be more easily stacked without having to worry about the position of the connector on the board below.
by Frotz661
Jul Tue 22, 2014 7:11 pm
 
Forum: Altair 8800 Micro
Topic: For future expansion cards
Replies: 0
Views: 3495

standoffs for mounting ramdisk board

My kit is missing the standoffs for mounting the ramdisk board atop the main board. Would someone with these standoffs please tell measure yours and tell me how tall they are?
by Frotz661
Jul Mon 21, 2014 7:43 am
 
Forum: Altair 8800 Micro
Topic: standoffs for mounting ramdisk board
Replies: 0
Views: 3406

Re: Unpack a DSK file in windows

Have you tried cpmtools?
by Frotz661
Jul Wed 16, 2014 4:57 am
 
Forum: Altair 8800 Micro
Topic: Unpack a DSK file in windows
Replies: 13
Views: 24662
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