IBM AT 5170 |
Some new Apple MACsby billdeg Total messages in this thread: 1 Recently I was given two working Apple MAC computers. The first is an MAC SE30, appears to be fully functional. Pictures The second is an admittedly not-yet-vintage Apple Powerbook 520C, with Colorwriter 2200 and a Visioneer Paperport scanner. circa 1994. The computer still works. Pictures">... [ read more ] |
Commodore SuperPET (CBM SP9000)by billdeg Total messages in this thread: 2 Updated: [ Output to a printer using a SuperPET ] 11/10/2008 I am writing a Pascal program on a CBM SuperPet running Waterloo Pascal. This version of pascal is similar to the pUCSD version. Pictures">... [ read more ] |
IBM 5155 Restoration Project Updateby billdeg Total messages in this thread: 1 ![]() |
Vintage Computer Festival East 5by billdeg Total messages in this thread: 1 Vintage Computer Festival East 5.0 Saturday, Sept. 13th and Sunday, Sept. 14th InfoAge Science Center at Wall Township, New Jersey. Sponsored by MARCH and VintageTech Pictures of the event">... [ read more ] |
Looking for an IMSAI Boxby monahan_z Total messages in this thread: 5 Updated: [ IMSAI chassis ] 10/31/2008 I am looking for an IMSAI S100 box with power supply and front panel. No need for S100 cards. Anybody seen one for sale?">... [ read more ] |
the "SacState" 8008 Machine 1972-73by billdeg Total messages in this thread: 1 Passing along an interesting story about a microcomputer produced by a guy named Bill Pentz at the California State University, Sacramento. According to the Digibarn's Bruce Dalmer this is "..the World's First Fully Functional Microcomputer (with peripherals).." http:...-pentz-story/index.html">... [ read more ] |
TM 990/189 or PP189by njoerd_de Total messages in this thread: 3 Updated: [ re:TM 990/189 or PP189 ] 10/21/2008 Hello to all, I get a TM 990/189 System from one of my friends. The interesting point is that the system is build in a black box. You can detach the cover from it. On the cove there are the letters PP189 and of course the Texas Instruments brand name. I searched in the internet to get more information about this system. I found some of the PCB (TM 990/189) itself but nothing about the box. Do anyone know more about it? Regards from Germany Andreas">... [ read more ] |
MITS 680b Memory Dump Listingby billdeg Total messages in this thread: 1 I found an article titled "Hexadecimal Memory Dump" bummed from Mark Borgerson code by Cal Rasmussen in my copy of Kilobaud from 11/1978. The program is written for a MITS 680b running MIKBUG. Program Listing">... [ read more ] |
Removing yellowing from plasticsby billdeg Total messages in this thread: 1 This is a reprint from http://www.vintage-computer.com/vcforum, but I thought it worth mirroring here. To follow is an excellent synopsis on the subject, taken from a 200 record thread: - Part 2 (by "Merlin") "...The original thread is over 200 posts long now and getting to be a heavy read for some, so Lorne and I thought it was best that we start a new thread here, with a "Story So Far" summary, before we start more experiments. So, what has been discovered and learned so far? 1. We have learned that a magic concoction has been created that can reverse the years of yellowing of plastics, caused by the brominated flame retardants (which were added to the plastic when it was a masterbatch) migrating to the surface of the plastic and attracting oxygen molecules which become attached by a co-ordinate bond. 2. Bromine molecules are susceptible to ultra-violet light, in that che">... [ read more ] |
MAC Plus 1MB Restorationby billdeg Total messages in this thread: 1 I came upon a MAC Plus 1MB that when powered on starts to smoke. Took the system apart and found that it had a bad monitor. The connector from the power supply to the monitor had a burn rupture. The monitor itself seems to be disfunctional. I replaced the power supply board, and although I get the happy beep, nothing appears on the monitor. I did not pay for any of this so no harm trying.">... [ read more ] |
applying power to a KIMby billdeg Total messages in this thread: 1 Regarding applying power to a KIM..I am looking at page 8 of the KIM User Manual. Have I interpreted the schematic correctly? It appears that I should connect the ground lead of the power supply to pin 1, and connect a +5V wire to pin A. The +12V cassette lead should connect to the pin labeled N on the Application connector. I also have to connect pins K to 1. I would love to see a picture if there is one out there, but I found nothing. I will post one when I am done.">... [ read more ] |
Amiga 1200by billdeg Total messages in this thread: 1 Picked one of these up at VCF E 2008. Needs some work...will post more here asap.">... [ read more ] |
The Digital Group - bytemasterby billdeg Total messages in this thread: 1 The Digital Group ("the digital group") /bytemaster/ model computer - a portable? Short of a handle and a latch to hold the keyboard in place, and this computer is a portable. In the least this computer is an important system be aware of in the early one of the earliest portables.">... [ read more ] |
Apple II / Biorhythm 2008by billdeg Total messages in this thread: 1 Today I finished the alpha version an AppleSoft BASIC program for calculating a person's Biorhythm. There is no MOD function in AppleSoft (floating point) BASIC, and variables can only be one letter. I had to write a routine to calculate leap years without being able to call a MOD function, and my method is to compare the integer value of the quotient with the original quotient. I am not sure if it will work. I want to be able to plug any date from 1752 to 5000 AD to get a result. I also used a lot of arrays to get around the limit to the number of available simultaneous variables. There is a MOD function in the earlier Wosniak Interger BASIC, but its other limitations outweighed it's use. I do plan to have at least one Apple Integer BASIC demo program available as well, for authenticity-sake. Pictures of the Apple II setup coming soon.">... [ read more ] |
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It had been a while since I ran my IBM AT model 5170. I opened it, and used the opportunity to test some new-to-me EGA cards and a couple of mid 80's hard drives. I also took a few pictures.">... [ read more ]