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This is New Old Stock box with 24 Russian microprocessors KR580VM80A (I8080 clone). The stamp on the box says "Feb 198x". Can't read the last digit.  I think it's 1987 or 1988. I decided to have some spares in stock for my current and future repair projects and found this deal. Looks like the box was not opened. The processors are packed like sliced cheese with the foil between slices. There is yellowed short manual with microprocessor specs. Made a picture for history :) #kr580vm80a #microchip #microprocessor #russiancomputer #homecomputer #vintagecomputer #oldtech #retrocomputer
This is New Old Stock box with 24 Russian microprocessors KR580VM80A (I8080 clone). The stamp on the box says "Feb 198x". Can't read the last digit. I think it's 1987 or 1988. I decided to have some spares in stock for my current and future repair projects and found this deal. Looks like the box was not opened. The processors are packed like sliced cheese with the foil between slices. There is yellowed short manual with microprocessor specs. Made a picture for history :) #kr580vm80a  #microchip  #microprocessor  #russiancomputer  #homecomputer  #vintagecomputer  #oldtech  #retrocomputer 
Elektronika KR-02 "Radio-86RK", 1989. Cheap Russian DIY computer kit for hobbyists made in 1989. I was asked about sound demo in the comments.  The sound on this video goes thru "Tape out" directly to the tape player. This was possible only in BASIC "Micron" using BEEP command. #vintage #homecomputer #vintagecomputer #oldtech #retrocomputer  #russiancomputer #radio86rk #kr580vm80a #kr02 #diy #Repost @vitaskhr
Radio-86RK "Elektronika KR-02", 1989. Russian DIY home computer. Fully restored. Looks like it was damaged by power spike. The schematics were published in Russian magazine "Radio" in 1986. The home computer has only 29 chips. This particular kit included a motherboard, keyboard, power supply, cables and a cassette with RAM test, 2 variants of BASIC, Assembler and Disassembler, dozen of games. The 28 year old MK60-6 cassette is surprisingly  completely readable. The case is handmade. Each proud owner of the kit is supposed to build their own case from metal, wood, paper or from whatever they can find. The speaker is also was not included. I refreshed and cleaned the keyboard but left the case as is. Just to preserve the atmosphere of 80s. Specs: 8-bit CPU KR580VM80A is running on 1.77Mhz, RAM 16Kb. Can be extended up to 32Kb. ROM 2kb. Needs a tape recorder to load/save software  #vintage #collectable #homecomputer #vintagecomputer #oldtech #retrocomputer  #russiancomputer #radio86rk #kr580vm80a #kr02 #diy
Radio-86RK "Elektronika KR-02", 1989. Russian DIY home computer. Fully restored. Looks like it was damaged by power spike. The schematics were published in Russian magazine "Radio" in 1986. The home computer has only 29 chips. This particular kit included a motherboard, keyboard, power supply, cables and a cassette with RAM test, 2 variants of BASIC, Assembler and Disassembler, dozen of games. The 28 year old MK60-6 cassette is surprisingly completely readable. The case is handmade. Each proud owner of the kit is supposed to build their own case from metal, wood, paper or from whatever they can find. The speaker is also was not included. I refreshed and cleaned the keyboard but left the case as is. Just to preserve the atmosphere of 80s. Specs: 8-bit CPU KR580VM80A is running on 1.77Mhz, RAM 16Kb. Can be extended up to 32Kb. ROM 2kb. Needs a tape recorder to load/save software #vintage  #collectable  #homecomputer  #vintagecomputer  #oldtech  #retrocomputer  #russiancomputer  #radio86rk  #kr580vm80a  #kr02  #diy 
Radio-86RK "Elektronika KR-02", 1989. Russian DIY home computer. Fully restored. Looks like it was damaged by power spike. I replaced almost all chips. Even an amplifier chip "tape in" was bad.The schematics were published in Russian magazine "Radio" in 1986. The home computer has only 29 chips. This particular kit included a motherboard, keyboard, power supply, cables and a cassette with RAM test, 2 variants of BASIC, Assembler and Disassembler, dozen of games. The 28 year old MK60-6 cassette is surprisingly  completely readable. The case is handmade. Each proud owner of the kit is supposed to build their own case from metal, wood, paper or from whatever they can find. The speaker is also was not included. I refreshed and cleaned the keyboard but left the case as is. Just to preserve the atmosphere of 80s. Specs: 8-bit CPU KR580VM80A is running on 1.77Mhz, RAM 16Kb. Can be extended up to 32Kb. ROM 2kb. Needs a tape recorder to load/save software. Got one Russian made tape recorder Vega 250 from Ebay.  #vintage #collectable #homecomputer #vintagecomputer #oldtech #retrocomputer  #russiancomputer #radio86rk #kr580vm80a #kr02 #diy
Radio-86RK "Elektronika KR-02", 1989. Russian DIY home computer. Fully restored. Looks like it was damaged by power spike. I replaced almost all chips. Even an amplifier chip "tape in" was bad.The schematics were published in Russian magazine "Radio" in 1986. The home computer has only 29 chips. This particular kit included a motherboard, keyboard, power supply, cables and a cassette with RAM test, 2 variants of BASIC, Assembler and Disassembler, dozen of games. The 28 year old MK60-6 cassette is surprisingly completely readable. The case is handmade. Each proud owner of the kit is supposed to build their own case from metal, wood, paper or from whatever they can find. The speaker is also was not included. I refreshed and cleaned the keyboard but left the case as is. Just to preserve the atmosphere of 80s. Specs: 8-bit CPU KR580VM80A is running on 1.77Mhz, RAM 16Kb. Can be extended up to 32Kb. ROM 2kb. Needs a tape recorder to load/save software. Got one Russian made tape recorder Vega 250 from Ebay. #vintage  #collectable  #homecomputer  #vintagecomputer  #oldtech  #retrocomputer  #russiancomputer  #radio86rk  #kr580vm80a  #kr02  #diy 
Elektronika KR-02 "Radio-86RK", Made in 1989. Russian 80s home computer sold as a cheapest DIY kit. The motherboard has been fixed. Found few short circuits under chips caused by old solder. BIOS chip was dead. The replacement  EPROM 2716  did not work somehow. Found original Russian KR573RF5 chips on Ebay. They worked very unstable even when my TL866 programmer said that software is ok there. The lifehack is to burn  this chip 10 times in a row with the same codes. Looks like one time is not enough even if the programmer can read it back. Also, this old Russian DIY kit has almost dead RAM KM581RU4. There is almost nothing to google about this memory but it looks like it's a 4116 clone with -5V required. I tried Mostek Apple 4116, TMS4116 but Motorola MCM4116BP20 worked the best  #vintage #collectable #homecomputer #vintagecomputer #retrocomputer #vintagecomputing #russiancomputer #repair #radio86rk #kr580vm80a #oldtech #kr02
Elektronika KR-02 "Radio-86RK", Made in 1989. Russian 80s home computer sold as a cheapest DIY kit. The motherboard has been fixed. Found few short circuits under chips caused by old solder. BIOS chip was dead. The replacement EPROM 2716 did not work somehow. Found original Russian KR573RF5 chips on Ebay. They worked very unstable even when my TL866 programmer said that software is ok there. The lifehack is to burn this chip 10 times in a row with the same codes. Looks like one time is not enough even if the programmer can read it back. Also, this old Russian DIY kit has almost dead RAM KM581RU4. There is almost nothing to google about this memory but it looks like it's a 4116 clone with -5V required. I tried Mostek Apple 4116, TMS4116 but Motorola MCM4116BP20 worked the best #vintage  #collectable  #homecomputer  #vintagecomputer  #retrocomputer  #vintagecomputing  #russiancomputer  #repair  #radio86rk  #kr580vm80a  #oldtech  #kr02 
Day 4. DIY newly soldered Radio-86RK, originally designed in 1986 in Russia for electronics hobbists, is ready to be powered on. In my opinion I installed latest and greatest chips I had for a successful test.  Well, I8080 is from 70s but looks much better than a Soviet clone KR580VM80A. The clone is what worked in this computer in 80s but the doc on  radio86rk.pbworks.com is telling me that I can use original Intel chips. Then I will replace the working logic by Russian logic I received from Bulgarian and  Hungarian Ebay sellers. It's a coffee cup of dirty chips with bent pins. #radio86rk #homecomputer #classiccomputer #retrocomputer #pcb #russiancomputer #retrotech #oldcomputer
Day 4. DIY newly soldered Radio-86RK, originally designed in 1986 in Russia for electronics hobbists, is ready to be powered on. In my opinion I installed latest and greatest chips I had for a successful test. Well, I8080 is from 70s but looks much better than a Soviet clone KR580VM80A. The clone is what worked in this computer in 80s but the doc on radio86rk.pbworks.com is telling me that I can use original Intel chips. Then I will replace the working logic by Russian logic I received from Bulgarian and Hungarian Ebay sellers. It's a coffee cup of dirty chips with bent pins. #radio86rk  #homecomputer  #classiccomputer  #retrocomputer  #pcb  #russiancomputer  #retrotech  #oldcomputer 
Day 3. Everything is soldered to DIY Radio-86RK, originally designed in 1985-1986 in Russia for electronics hobbyists. The board passed OK a power test without microchips in sockets. Next step is fun part. I need to program ROMs to get a font+BIOS and ATMega chip which will convert PS/2 keyboard codes to RK86 key matrix. #radio86rk #homecomputer #classiccomputer #retrocomputer #pcb #russiancomputer #retrotech #oldcomputer
Day 2 of soldering new DIY vintage home computer Radio-86RK #radio86rk #homecomputer #classiccomputer #retrocomputer #pcb #russiancomputer #retrotech #oldcomputer
Back to non-working Russian home computer "Radio-86RK" from 1989. The kit I have for recovery is based on completely DIY computer schematics published in "Radio" magazine in 1986. People assembled it from scratch. There were no same looking home made computer. So, I decided to go the same vintage way and solder my version of Radio-86RK and use it as a lab to recover my 1989 "Elektronika KR-02" factory kit. I found schematics on radio86rk.pbworks.com. It's compacted to mini-ITX pcb and can use ATX power supply + optional ps/2 keyboard controller if I do not want to make my own vintage keyboard. But probably I'll make it.  Also, 8/16 memory chips replaced by one modern SRAM chip. The rest of the computer is the same as it was in 1986. Just finished to solder resistors. #radio86rk #homecomputer #classiccomputer #retrocomputer #pcb #russiancomputer #retrotech #oldcomputer
Back to non-working Russian home computer "Radio-86RK" from 1989. The kit I have for recovery is based on completely DIY computer schematics published in "Radio" magazine in 1986. People assembled it from scratch. There were no same looking home made computer. So, I decided to go the same vintage way and solder my version of Radio-86RK and use it as a lab to recover my 1989 "Elektronika KR-02" factory kit. I found schematics on radio86rk.pbworks.com. It's compacted to mini-ITX pcb and can use ATX power supply + optional ps/2 keyboard controller if I do not want to make my own vintage keyboard. But probably I'll make it. Also, 8/16 memory chips replaced by one modern SRAM chip. The rest of the computer is the same as it was in 1986. Just finished to solder resistors. #radio86rk  #homecomputer  #classiccomputer  #retrocomputer  #pcb  #russiancomputer  #retrotech  #oldcomputer 
Russian programmable RPN calculator Elektronika MK-52, 1986-1991. Display:8+2  green fluorescent digits, 105 steps + 512 in EPROM, expansion port. MK-52 was carried on board in Russian space program as a plan B to calculate spaceship landing parameters if a main computer is down. #vintage #collectable #mk52 #retrotech #oldtech #calculator #russiancomputer  #programmable
Poisk, 1991. Vintage Russian PC clone. Not really fully compatible but still similar to IBM PC XT. I couldn't wait and decided to inspect and try to turn it on today. It was possible to obtain black and white PAL video  from the back of the home computer and my multisystem security monitor easily digested the signal. The result looks very promising. We will get back to this vintage computer later #vintage #collectable #poisk #oldcomputer #russiancomputer #homecomputer #vintagecomputing #restoration #retrotech #oldtech #retro #retrocomputer
Poisk, 1991. Vintage Russian PC clone. Not really fully compatible but still similar to IBM PC XT. I couldn't wait and decided to inspect and try to turn it on today. It was possible to obtain black and white PAL video from the back of the home computer and my multisystem security monitor easily digested the signal. The result looks very promising. We will get back to this vintage computer later #vintage  #collectable  #poisk  #oldcomputer  #russiancomputer  #homecomputer  #vintagecomputing  #restoration  #retrotech  #oldtech  #retro  #retrocomputer 
Poisk, 1991. Unboxing of this vintage home computer. Made in USSR.  The bag with wires and tape cassette with software is still sealed and holds the air from that era. The packaging looks similar to modern "environmentally friendly recyclable" packaging. The starting kit  has on board: CPU KM1810VM88 5MHz (i8088 compatible), RAM 128Kb (expandable to 384K or 640K using an extension card. I got one as a bonus), built-in CGA compatible video adapter. By default it uses a tape recorder to load/save programs but floppy drives or even hard drives can be attached using 4 extension slots. I beleive the other card I got today is for floppy drives. Will test it after an inspection and once I'll figure out how to plug my security PAL/NTSC monitor to this guy. #vintage #collectable #poisk #russiancomputer #homecomputer #vintagecomputer  #vintagecomputing #retrocomputer #oldtech  #retrocomputing
Poisk, 1991. Unboxing of this vintage home computer. Made in USSR. The bag with wires and tape cassette with software is still sealed and holds the air from that era. The packaging looks similar to modern "environmentally friendly recyclable" packaging. The starting kit has on board: CPU KM1810VM88 5MHz (i8088 compatible), RAM 128Kb (expandable to 384K or 640K using an extension card. I got one as a bonus), built-in CGA compatible video adapter. By default it uses a tape recorder to load/save programs but floppy drives or even hard drives can be attached using 4 extension slots. I beleive the other card I got today is for floppy drives. Will test it after an inspection and once I'll figure out how to plug my security PAL/NTSC monitor to this guy. #vintage  #collectable  #poisk  #russiancomputer  #homecomputer  #vintagecomputer  #vintagecomputing  #retrocomputer  #oldtech  #retrocomputing 
This box was just delivered from Slovakia. It's a kind of soviet clone of IBM PCjr. The brand name is "Poisk". There is a stamp on the package that it was manufactured on August 2, 1991. The label on the box says:"For kids older than 12 years" and 2 extension cards were included as a bonus. It goes to the queue for testing and restoration. #vintage #collectable #homecomputer #oldcomputer #vintagecomputer #vintagecomputing #retrocomputer #oldtech #russiancomputer #retrocomputing
This box was just delivered from Slovakia. It's a kind of soviet clone of IBM PCjr. The brand name is "Poisk". There is a stamp on the package that it was manufactured on August 2, 1991. The label on the box says:"For kids older than 12 years" and 2 extension cards were included as a bonus. It goes to the queue for testing and restoration. #vintage  #collectable  #homecomputer  #oldcomputer  #vintagecomputer  #vintagecomputing  #retrocomputer  #oldtech  #russiancomputer  #retrocomputing 
Apogee BK01C, 1988-1991. Vintage  Russian home computer. The experiment with GBS-8200 was successful. It converted PAL RGB signal from the back of computer to standard VGA and I got 8 colors promised by the manual #vintage #collectable #homecomputer #oldcomputer #retrocomputer #vintagecomputer #oldtech #vintagegaming #russiancomputer #retro #vintagecomputing #restoration #boulderdash #gbs8200 #lines
Apogee BK01C, 1988-1991. The power/video cables are ready. I googled this game for Apogee, converted to WAV and loaded  the file playing it from my pad to tape-in audio socket on the back of the computer.  Spent 15 min playing old Boulder Dash on this vintage Russian home computer. #vintage #collectable #homecomputer #oldcomputer #retrocomputer #vintagecomputer #oldtech #vintagegaming #russiancomputer #retro #vintagecomputing #restoration #boulderdash
Apogee BK01C, 1988-1991. Another Russian home computer from 80s. I got this from Ebay as a plan B to help me with the restoration of Radio-86RK. I can measure signals between chips and compare. This home computer was built using Radio-86RK DIY design with little improvements. The manufacturer increased RAM up to 64Kb, added a separate 3 channel sound processor and it's not B/W video. It has 8 colors. That "C" at the end of the model name means "color". The CPU is KR580VM80A. No power supply, but the condition is like new. Seems nobody used it. Hope it works. #vintage #collectable #homecomputer #vintagecomputer #oldtech #retro #restoration #retrotech #oldcomputer #russiancomputer #kr580vm80a #apogeebk #vintagecomputing
Apogee BK01C, 1988-1991. Another Russian home computer from 80s. I got this from Ebay as a plan B to help me with the restoration of Radio-86RK. I can measure signals between chips and compare. This home computer was built using Radio-86RK DIY design with little improvements. The manufacturer increased RAM up to 64Kb, added a separate 3 channel sound processor and it's not B/W video. It has 8 colors. That "C" at the end of the model name means "color". The CPU is KR580VM80A. No power supply, but the condition is like new. Seems nobody used it. Hope it works. #vintage  #collectable  #homecomputer  #vintagecomputer  #oldtech  #retro  #restoration  #retrotech  #oldcomputer  #russiancomputer  #kr580vm80a  #apogeebk  #vintagecomputing 
Elektronika KR-02 "Radio-86RK", 1989. Russian 80s DIY home computer. Most of old Russian ICs responsible for forming CAS/RAS signal  have been replaced by similar West/Asia made chips and installed on top of sockets. So, I can easily replace them. The video picture is better but characters are still not in right order and CAS signal is not correct. These 2 data selector ICs in the left bottom corner are the next. Once the computer will be fully alive I will replace ICs back to NOS Russian chips found on Ebay to preserve the authenticity of this vintage item. #vintage #collectable #homecomputer #vintagecomputer #retrocomputer #vintagecomputing #russiancomputer #repair #radio86rk #kr580vm80a #oldtech #kr02
Elektronika KR-02 "Radio-86RK", 1989. Russian 80s DIY home computer. Most of old Russian ICs responsible for forming CAS/RAS signal have been replaced by similar West/Asia made chips and installed on top of sockets. So, I can easily replace them. The video picture is better but characters are still not in right order and CAS signal is not correct. These 2 data selector ICs in the left bottom corner are the next. Once the computer will be fully alive I will replace ICs back to NOS Russian chips found on Ebay to preserve the authenticity of this vintage item. #vintage  #collectable  #homecomputer  #vintagecomputer  #retrocomputer  #vintagecomputing  #russiancomputer  #repair  #radio86rk  #kr580vm80a  #oldtech  #kr02 
Elektronika KR-02 "Radio-86RK", 1989. Russian 80s DIY home computer. Troubleshooting memory CAS signal. One IC was replaced. Still no luck. #vintage #collectable #homecomputer #vintagecomputer #retrocomputer #vintagecomputing #russiancomputer #repair #radio86rk #kr580vm80a #oldtech #kr02
Electronika BK-0010-01,1983-1993. Mass production started in 1985. 16-bit CPU K1801VM1, 3 MHz, PDP-11 compatible, RAM 32Kb,  hi resolution video 512x256 monochrome or low resolution 256x256 4 colors, built-in BASIC + external cartridge with FOCAL. #vintage #collectable #bk0010  #homecomputer #oldcomputer #retrocomputer #vintagecomputer #classiccomputer #vintagecomputing #oldtech #retro #schoolcomputer #russiancomputer
Electronika BK-0010-01,1983-1993. Russian, one of the first 16-bit home computer and most popular Russian school workhorse in the end of 80s. Mass production started in 1985. Appx 162,000 units (wikipedia) were made.16-bit CPU K1801VM1, 3 MHz, PDP-11 compatible, RAM 32Kb,  hi resolution video 512x256 monochrome or low resolution 256x256 4 colors, built-in BASIC + external cartridge with FOCAL. The cassette with Basic and Focal demo programs + blank cassette included. I received an old stock sealed in plastic never opened box with BK-0010-01 manufactured in 1990 with no signs of use. Probably 32Kb version was not sold because 128Kb BK-0011 was already on sale. This picture shows very first time when the computer was turned on and software loaded. The old Soviet tape recorder Electronika 302-1 was ordered from Bulgaria specially to match an age of this computer. I had very hard time to read 26 year old tape. Look at the keyboard. $ sign was replaced by "turtle" sign #vintage #collectable #BK0010 #russiancomputer #homecomputer #vintagecomputer #oldtech #retrocomputer #classiccomputer #oldcomputer #retro #Electronika #basic #focal #electronica302
Electronika BK-0010-01,1983-1993. Russian, one of the first 16-bit home computer and most popular Russian school workhorse in the end of 80s. Mass production started in 1985. Appx 162,000 units (wikipedia) were made.16-bit CPU K1801VM1, 3 MHz, PDP-11 compatible, RAM 32Kb, hi resolution video 512x256 monochrome or low resolution 256x256 4 colors, built-in BASIC + external cartridge with FOCAL. The cassette with Basic and Focal demo programs + blank cassette included. I received an old stock sealed in plastic never opened box with BK-0010-01 manufactured in 1990 with no signs of use. Probably 32Kb version was not sold because 128Kb BK-0011 was already on sale. This picture shows very first time when the computer was turned on and software loaded. The old Soviet tape recorder Electronika 302-1 was ordered from Bulgaria specially to match an age of this computer. I had very hard time to read 26 year old tape. Look at the keyboard. $ sign was replaced by "turtle" sign #vintage  #collectable  #BK0010  #russiancomputer  #homecomputer  #vintagecomputer  #oldtech  #retrocomputer  #classiccomputer  #oldcomputer  #retro  #Electronika  #basic  #focal  #electronica302