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PRAVETZ 8A – restoration and cleaning
ByvkirovAfter long years of searching, we finally acquired not one but two very well-preserved computers. Pravetz 8A is considered to be one the rare models here in Bulgaria, mostly because most of them were exported to the USSR. Also, they were not sold freely here, only certain institutions had access to owning them. Although it…
How to service an old Apple II floppy drive
By8BitClubCAUTION! Improper tuning of the disk speed may cause your floppy to stop reading disks. Be sure that you have a spare working floppy so you can boot Locksmith from it. Thing you will need: 1. Locksmith boot disk 2. Working floppy drive so you can boot from it 3. Blank 5.25 inch floppy disk or an old one that you don’t care for. 4. Flathead screwdriver for turning the motor speed trimer 5. Oil or lithium grease 6. 99% alcohol 7. Q-tips If you…
IZOT CM1604 M3 restoration – part 1
ByvkirovThe time has finally come to take a look at the other terminal we acquired in our last haul from a local factory here in our town. CM1604 M3 is the third revision of the computer terminals manufactured in 1985 by ZZU – Veliko Tarnovo and sold by the brand “IZOT” here in Bulgaria. The system is a…
The OG Xbox and the Clock Capacitor Problem
ByvkirovWhen restoring early-2000s hardware, the original Xbox often comes with a hidden danger – the clock capacitor. This small component was originally designed to keep the system clock running when the console was unplugged. While the idea made sense back in 2001, it turned into one of the most notorious weak points of the system….
A mouse for our 520 STFM
ByvkirovAfter searching for a long time, we finally found a compatible mouse for our ATARI 520STFM on the web. We bought it for 25BGN, which is quite cheap. To our amazement it works. Lets take it apart to look inside and clean it.
Quick repair: Pravetz 8D
ByvkirovRecently we found another Pravetz 8D on auction for a good price and in good condition. No matter that we have a few units in our collection, we decided to save this one as well. You can never have too many Pravetz computers. 🙂 On first sight the unit was in mint condition, even the…























