... Daniel, welcome to our group. Please introduce yourself -- how did you learn about us, where are you located, etc.? - Evan K., MARCH prez...
29140
Mike
mwillega
Feb 3, 2013 2:08 am
sorry about all these posts and yes, I realized after trying to post a bunch of times, that NCR is not the same as National Semiconductor - I wish the posts...
29139
ajpierson1
Feb 3, 2013 2:08 am
If you want to unload 'em, I would be happy to put them to good use with my Atari VCS, among other systems... Any idea of what condition they are in?...
29138
Bryan Pope
b_ster42
Feb 3, 2013 2:08 am
... Do these have the metal telescoping antenna and also quick a thick base? Cheers, Bryan...
29137
joshbensadon
Feb 3, 2013 1:13 am
... Corey, Although I have another priority job, I just couldn't resist starting on this little project. It's like a jig saw puzzle and I can't resist a good...
29136
Mike Loewen
mloewen16823
Feb 2, 2013 10:11 pm
Sometimes you find something interesting on Freecycle: http://sturgeon.css.psu.edu/~mloewen/Oldtech/Commodore/Promenade-L.jpg Jason-Ranheim Promenade Model C1...
29135
joshbensadon
Feb 1, 2013 9:28 pm
... What dust? all I see is vintage computing at it's best! Ok, leave it with me, I'll try to manage some time over the weekend to piece the circuit together...
29134
corey986
Feb 1, 2013 5:13 pm
Here are the scans... http://www.myapplecomputer.net/Sol-20/z80_upgrade/index.html they are pretty big at 1200dpi, so don't open them on a mobile connection...
29133
joshbensadon
Feb 1, 2013 1:21 am
... Hi Daniel, This group prefers "Bottom Post". I think very few Altair/Imsai boards would make use of the CPU refresh. Even those boards that did use...
29132
DanielB
danlb_2000
Feb 1, 2013 12:38 am
I was wondering about that loose wire also. It's possible that it's not supposed to be connected to something permanently. On mine it's a stranded white with a...
29131
DougCrawford
dougmemphis
Jan 31, 2013 8:11 pm
... Interesting piece!...
29130
joshbensadon
Jan 31, 2013 8:02 pm
... Yeah, the Tarbell 1101 Floppy Disk Controller is another board that depends on the STATUS byte being present during pSYNC pulses (an 8080A feature). To be...
29129
Systems Glitch
systems.glitch
Jan 31, 2013 6:32 pm
... Some of the older hardware was designed to take advantage of some very specific aspects of the 8080's timing. I discovered this with my Solid State Music...
29128
corey986
Jan 31, 2013 5:28 pm
I'll scan it later today and post pics. The CPU is already removed, I sold the ceramic white 1976 Z80. It came out of my Sol-20 that I picked up. Thanks, ...
29127
joshbensadon
Jan 31, 2013 4:59 pm
... Sorry, I don't have schematics for the board, but I've studied the idea of creating 8080A signals from the Z80A. I have a good idea of how that board is...
29126
corey986
Jan 31, 2013 4:53 pm
Thanks!!!!!...
29125
corey986
Jan 31, 2013 4:23 pm
You don't happen to have documentation for the Dutronics board? I have one and have no clue how it hooks up. I only see where you plug it into the 8080a slot...
29124
joshbensadon
Jan 31, 2013 4:03 pm
... A trade for a Ceramic 8080A + 8212 chip for the Dutronics board IMHO would be fair. It would let Daniel experience an original IMSAI 8080. The problem...
29123
Bill Sudbrink
bsudbrink
Jan 31, 2013 1:43 pm
... Should you decide to do that for some reason, I will happily buy that from you. I'll even sell you a nice ceramic 8080. Bill S....
29122
ekoblentz
Jan 31, 2013 5:32 am
... http://vod.fxnetworks.com/watch/theamericans/12190275870 Cool. Not ours though....
29121
Dan Roganti
ragoo_sauce
Jan 31, 2013 5:03 am
... there's an osborne in this clip http://vod.fxnetworks.com/watch/theamericans/12190275870...
29120
joshbensadon
Jan 31, 2013 3:53 am
... Great Pictures, Thanks! Your system is in great shape. Food for thought. On my system, I went through 6 RAM boards, none were working reliably and I had to...
29119
ekoblentz
Jan 31, 2013 2:35 am
I got a message from the show's prop designer: "Your computers will not air in the pilot episode which I did not work on..however, they will be in later...
29118
Systems Glitch
systems.glitch
Jan 31, 2013 2:19 am
... I don't know that printer's exact model, but many printers were made in a similar form factor as "printing meters." Basically you fed them ASCII or BCD...
29117
DanielB
danlb_2000
Jan 31, 2013 1:13 am
... Thanks for all the responses, there is some great information in these posts. The power supply is really my biggest concern once I get past that I am much...
29116
joshbensadon
Jan 31, 2013 12:41 am
Does anyone know anything about the "u SOKiT 68" ? (u=micro) from CompuKits? Circa 1982. York Museum has a manual for this educational kit computer, but I'm...
29115
Ray Sills
raysills
Jan 30, 2013 11:48 pm
... I remember the name Alphacom being associated with a compact printer. I think it was a thermal paper printer... maybe 4.5" wide. 73 de Ray...
29114
B. Degnan
billdeg
Jan 30, 2013 11:24 pm
http://vintagecomputer.net/browse_thread.cfm?id=502 Anyone ever seen something like this from the late 60's? It's a portable terminal that stored custom...
29113
Christian Liendo
christian_li...
Jan 30, 2013 3:36 pm
... Actually, yea... I just bought a pair of the USB ones from Retrothing for my Raspberi Pi.. I'll pay you for shipping. ...
