Stack Exchange Network

Stack Exchange network consists of 174 Q&A communities including Stack Overflow, the largest, most trusted online community for developers to learn, share their knowledge, and build their careers.

Visit Stack Exchange
Join us in building a kind, collaborative learning community via our updated Code of Conduct.

For questions about the restoration of old machines: from cosmetic through to electronics such as capacitor replacement.

6
votes
2answers
193 views

How to protect a ZX Spectrum mainboard from “ageing”?

I have some ZX Spectrums, and in some of them I observe a kind of "disintegration" process of the main board. The connectors break away etc. During the tests one of the boards burned out :(. How can ...
7
votes
2answers
333 views

How to repair paint on IBM PC?

I have an IBM XT 286 which has essentially the same case as the original IBM PC. It has a few minor blemishes, some places where the paint has been chipped off, and some tiny spots of rust. How should ...
8
votes
4answers
2k views

How to renew and re-ink old printer ribbons?

What is the proper way to restore and re-ink old typewriter, calculator, dot matrix printer, and mainframe lineprinter ribbons? Usually fabric ribbons or open-cell foam sponge rollers were used to ...
1
vote
1answer
95 views

PCB Black Spot: Leakage?

Photo album, sorry for the hassle Quick question: Ceramic disk capacitor has leaked? Or a dodgy soldering technique? This is a quite old calculator, it's an arbitrary model nowhere to be found. Any ...
15
votes
1answer
935 views

Is it possible to adapt a standard PC floppy drive to work in an IBM PS/2?

I have three different IBM PS/2 machines and all of them are in perfect working order—except for the floppy drives. None of the floppy drives will read disks, which means all I can do is key in BASIC ...
8
votes
2answers
218 views

Is it safe to provide 5V to CMOS RAM from PSU instead of CR2032 battery?

I have a motherboard which stores BIOS settings in a DS12887 chip with internal battery. The battery is long dead, and the pin of chip's socket is not connected to any power supply so the chip doesn't ...
18
votes
1answer
568 views

Are the effects of “Retro-Brighting” permanent or temporary?

As many of you know, plastics used in our beloved computers from the 70's, 80's and 90's contained a fire retardant called Bromine. This chemical (along with exposure to the Sun's ultraviolet rays) ...
10
votes
2answers
248 views

Will careful restoration of a retrocomputer's paint job enhance its value?

First off, I'm not talking about painting my plastic C64 in Ferrari Red! While this may look cool, I'm sure any value enhancement of the machine would be based purely on 'taste'. I have a NeXT Cube, ...
10
votes
3answers
1k views

Restore corroded AT motherboard with dead CMOS battery

I have acquired a nice MS-DOS PC from EET Computer (I couldn't find any information about them). It actually works, but I have two errors on boot: Floppy disk drive controller failure; CMOS Battery ...
20
votes
4answers
511 views

When or should we expect our 8-bit motherboards to fail due to the capacitors?

I would assume that most people who have been trying to keep these old micros working are well aware of the finite life of components, which is the idea that age will eventually cause things to fail. ...
8
votes
3answers
538 views

Replacing Amiga 9 pin D-Sub mouse cable

I have an original Amiga "tank" mouse, the PCBs are good, but the cable is clearly faulty as the Y axis and left mouse click doesn't work when it is tilted to the right. I need to replace the cable ...
9
votes
2answers
210 views

Cosmetically restoring vintage equipment [closed]

For most of my life I have been assembling what has turned into a very nice collection of retro machines. For many of my systems I am the original owner, and they are in near-mint condition, but I ...
6
votes
0answers
172 views

What is the model of the Emachines Etower 366i2's Monitor?

I've an old 1999 Emachines Etower I want to restore. I have all the original parts except for the monitor. It just isn't a complete set without it. Does anybody know the specific model of that monitor....
8
votes
3answers
520 views

To wash or not to wash a Mac SE/30

I have a Macintosh SE/30 that I'm trying to bring back to life. When I power it on, I get the dreaded horizontal stripes. Or, zebra stripes. Also called Simasimac. I have re-seated all of the ...
3
votes
1answer
99 views

Zenith SupersPort 286e doesn't boot at all

I have acquired a Zenith SupersPort 286e without its battery but with its (seemingly working) power supply. Sadly, the computer doesn't boot at all, nothing happens when I flick the On/Off switch. ...
7
votes
2answers
1k views

Repairing/Lubing/Fixing Amiga 500 floppy drive

I have acquired an Amiga 500 that seems fully functional, but the floppy disk drive seems to have mechanical issues. I could get it to read a few floppy disks until the last one wouldn't pop out when ...
8
votes
2answers
464 views

How to fix a TI99/4a membrane keyboard?

I recently purchased a 1982 TI99/4a that has a defective keyboard. The keyboard is a Mitsumi with normal keys, but membrane type contacts. When I press the contacts (gently) with a plastic stylus ...
10
votes
4answers
4k views

Are PowerPC processors still manufactured and used in desktop computers?

I have some disc images that run only on PowerPC. I've heard a lot about PowerPC being popular back in the day, especially being used with older Apple computers. I don't hear much about them anymore, ...
9
votes
3answers
277 views

How to clean an old computer ball-mouse

I have an old mouse from a old HP computer which I am using with one of those PS2-to-USB converter cables. The problem is that the mouse has changed its color a bit over the years and is now a bit ...
25
votes
4answers
600 views

How to get rid of yellowing in plastics?

I have some old electronics with white plastic that's starting to turn yellow. I know it's caused by flame retardants, UV rays, and so on. How can I restore my electronics to their former color?
16
votes
1answer
550 views

What size screws were used in the Amiga desktop cases?

On the Amiga 500, 500+, 600, and 1200, what size screws were used to hold the chassis together? Is it the same size screw for all, different screws per machine, different screws front and rear, or ...
4
votes
1answer
103 views

Will an eMac boot without a PRAM battery installed?

eMacs have a 3.6V PRAM battery and some sources indicate that when the voltage starts to drop that they may have trouble booting. Will an eMac work without a battery?
8
votes
1answer
95 views

How do you remove the clear section from the back of the eMac's housing?

As the title states, the eMac has a clear section at the back of it's housing that forms a grill for the fan inside. This seems to be pretty good at catching dust that's impossible to get at simply by ...