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Questions tagged [restoration]

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

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6 votes
1 answer
179 views

Repairing an Old CRT Monitor (IBM 5153)

I acquired a used IBM 5153 monitor. The model number is 5153002. It was manufactured in Taiwan and supports AC100-250V. When I first powered it on, the monitor turned on, but nothing appeared on the ...
Sung's user avatar
  • 509
7 votes
2 answers
377 views

Need help restoring the OS of an "AST Premium Exec 386SX/20" laptop

I have an AST Premium Exec 386SX/20 Model 63V laptop minus a floppy drive and hard disk. Otherwise the 1991 vintage machine is fully functional (and in excellent condition, so it's definitely worth ...
Wossname's user avatar
  • 171
9 votes
1 answer
407 views

What is the effect of direct exposure of the magnetic disk of a floppy to ultraviolet (UV) light?

I was thinking of the mold issue of floppies and UV light (UV-C) came to mind. As ultraviolet (UV) is a form of electromagnetic radiation and floppies use a magnetic disk for storage and I vaguely ...
Bob Ortiz's user avatar
  • 1,662
15 votes
2 answers
2k views

How should I repaint my Commodore PET?

I have an original Commodore PET from 1977, that I have recently electrically restored, but there are some rust spots on the case. It seems that I should at least do something to inhibit further ...
Edward's user avatar
  • 273
1 vote
0 answers
176 views

Should I apply developer cream (Oxycream) using a paint roller instead of a paint brush during retrobriting?

As I ask in this question an Oxycream is a good approach for retrobriting but due to the dangers of uneven results I was thinking instead of a brush to use a paint roller pin. The reason I am thinking ...
Dimitrios Desyllas's user avatar
1 vote
1 answer
378 views

Can I retrobright using Oxycream (used in hair dyes)?

The keyboard that I have in this question seems a bit yellow, a classic problem that retrobrighting solves. Typical recipes require UV Light and Hydrogen peroxide. So I wonder if Oxycream can work as ...
Dimitrios Desyllas's user avatar
14 votes
5 answers
2k views

Glue to attach rubber feet to a PC case?

I have an old PC case. I spray painted it because it was a little bit rusty. Now I'm trying to attach a set of rubber feet to it, but I have no idea what kind of glue to use. I tried hot glue, but it ...
Tamás Polgár's user avatar
2 votes
1 answer
345 views

"Restoring" a 1986 Compaq Portable II (Cabling question)

I am in possession of a working 1986 Compaq Portable II. However, I couldn't find a 5.25" floppy with the proper version of DOS on it to actually make the computer, ya know, work. I've since ...
R3TURN-0's user avatar
1 vote
1 answer
493 views

How can I fix this clacking sound made by the Game Boy speaker?

I have a Game Boy, and whenever it tries to play sound, the sound is very quiet but there's a loud clacking sound. Here is a sample. In this case, it is Tetris Attack playing: https://soundcloud.com/...
S.S. Anne's user avatar
  • 128
2 votes
1 answer
253 views

Can I change laptop's RTC and backup battery with generic Ni-MH?

I got old Toshiba 100CS for a good price. After some inspection, I noticed that AutoResume backup battery and RTC battery are already gone bad, and seems can't hold charge. I've checked eBay for ...
Kamome's user avatar
  • 163
2 votes
1 answer
688 views

Are there any examples of the use of AI to recreate drivers to resurrect old systems?

Background I am fascinated by the thought of re-purposing systems with modern OSes. For example, I am running a hacked Android Pie ROM on an old Samsung Galaxy S4. A main reason why this isn't more ...
Gabriel Fair's user avatar
6 votes
0 answers
140 views

Restoring a self-inking printer cartridge

I've seen people ask about restoring printer or typewriter ribbons, but my situation's a little different. I have a self-inking ribbon for a DECwriter Correspondent. It's easy to open up the casing, ...
Bob's user avatar
  • 61
2 votes
2 answers
411 views

Is it possible to chemically remove spray paint from 1990's PC cases (specifically the plastic front covers)?

I have in my possession a stack (like 7 or 8) DELL P60 desktop computers. Unfortunately some idiot (cough, me, cough) thought it was a good idea (about 15+ years ago) to spray paint them all black. ...
Geo...'s user avatar
  • 10.2k
8 votes
5 answers
978 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 ...
Adam Bogdan Boczek's user avatar
10 votes
3 answers
2k 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 ...
Sydius's user avatar
  • 2,634
10 votes
4 answers
12k 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 ...
Dale Mahalko's user avatar
  • 3,639
1 vote
1 answer
125 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 ...
Carlos's user avatar
  • 11
18 votes
3 answers
6k 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 ...
Cody Gray - on strike's user avatar
7 votes
2 answers
865 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 ...
Algimantas's user avatar
  • 1,344
19 votes
1 answer
3k 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) ...
cbmeeks's user avatar
  • 8,531
10 votes
3 answers
609 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, ...
Brian H's user avatar
  • 60.8k
11 votes
3 answers
6k 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 ...
Informancien's user avatar
  • 2,657
19 votes
4 answers
1k 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. ...
bjb's user avatar
  • 16.4k
9 votes
3 answers
3k 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 ...
Informancien's user avatar
  • 2,657
10 votes
2 answers
461 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 ...
Geo...'s user avatar
  • 10.2k
5 votes
0 answers
265 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?...
aaa's user avatar
  • 79
9 votes
3 answers
2k 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 ...
cbmeeks's user avatar
  • 8,531
4 votes
1 answer
303 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. ...
Informancien's user avatar
  • 2,657
8 votes
2 answers
4k 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 ...
Informancien's user avatar
  • 2,657
11 votes
2 answers
2k 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 ...
Cees Meijer's user avatar
20 votes
6 answers
16k 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, ...
Retro Gamer's user avatar
  • 2,435
11 votes
3 answers
1k 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 ...
Suici Doga's user avatar
27 votes
4 answers
1k 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?
snips-n-snails's user avatar
21 votes
2 answers
2k 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 ...
snips-n-snails's user avatar
9 votes
3 answers
529 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?
Matt Lacey's user avatar
  • 2,320
7 votes
1 answer
286 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 ...
Matt Lacey's user avatar
  • 2,320