Last month we finally acquired a “Transporter-1” conveyor belt for our ROBKO-01. For our luck it was brand new in the bag with the instruction manual. At first it looked like it took a beat at the side and part of the metal chassis was bent. We decided to take it apart and do a quick restoration and repair.
Recently, we acquired some teletypes for the collection, one of them is the RFT F2000. The F2000 features microprocessor control, not like the earlier models which rely on motor driven mechanisms for the encoding and decoding of the signals. Here are some photos of the restoration process. Another interesting thing is that the F2000 features…
The 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…
One of the many tasks in the museum is to have the appropriate era-correct monitor for our Pravetz 82. We managed to acquire one or two throughout the years, but they had missing transformers and CRT yokes that were stolen from scrapers for their expensive copper. Well, a recent donation to the museum was another…
Recently we saved from the scrap two IZOT terminals, used in the local factories here. Basically these are DEC VT100 clones, made in Bulgaria in the 80`s. In the following articles to come we will take on a more detailed aproach on the CM1604 and the M3, whis is the third revision.
CAUTION! 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…
After 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…