53:36
The Lars Berg Knipsekasse main board with lots of 4000 series logic
26:44
Another Dumpster find, the 11.3 Inch LCD Touch monitor.
01:11:36
We take on another C64, and donât dare to blame everything on the PLA !
56:55
The Rusty IBM AT 5170, part 2. Throwing ourselves into the deep end
41:04
The rusty IBM AT 5170
42:45
Evaporust, the movie, or at least the Norwegian blend !
35:34
The HUAWEI LTE 4G basestation, Is there any spychips in there ?
39:30
Unboxing lots of 90âs computer stuff
46:20
No end to things you never wanted to know about the Commodore C-64 Power. Part 3 in the series
11:52
Building a variable load rack for testing PSU's
59:39
Even more you never wanted to know about the Commodore C-64 Power Supply. Part 2 in the series
01:01:30
All you never wanted to know about the C-64 Power Supply, and all the implications. Part 1
02:44
Please, I just want to ask you a question about you C64 powersupply !
40:30
Fun with eproms, the return of the Dekoder. After all, it's only logical
01:08:07
The C128, Ep7, There is always a new problem, we fix the PSU, and test more the Arctic Retro Board.
32:53
The C128, Ep6, Testing the test of the 128 DCR, and modding the test harness.
43:02
The C128, Ep5, Finaly we revisit and make some progress on the Arctic Retro 128DCR
39:38
The C128, Ep4, We have to revisit the DCR, and itâs my fault, but we learn a hell of a lot about it
50:23
The Commodore 128, Ep3, One down several more to go, This time we actually fix something.
35:51
The Commodore 128, Ep2 , To rule the world of the C128 you have to seize power.
23:54
The Commodore 128, Ep1 , We take a deep dive, and mainsplain the heck out of the service manual.
27:37
The old school Joystick tester. How can we test them in the most complicated and time consuming way?
32:29
Is the ZEEWII DSO2512G scope god enough for what we are doing at KOJRO Retro Innovation?
18:36
Itâs only logical. Episode 24 âDid we really make a working 6502 computer?â A Christmas Cal. KOJRO.
17:24
Itâs only logical. Episode 23 âThe wonderful world of the 6502â A Christmas Calendar from KOJRO RI
18:33
Itâs only logical. Episode 22 âAddress decoding is not only for the mailmanâ A X-mas Calendar, KOJRO
15:13
Itâs only logical. Episode 21 âWe latch on to yet another Chipâ A Christmas Calendar from KOJRO RI.
21:33
Itâs only logical. Episode 20 âWe sort out some bits and piecesâ A Christmas Calendar from KOJRO RI
19:09
Itâs only logical. Episode 19 âWe test the 7-Segment Displayâ A Christmas Calendar from KOJRO RI.
13:23
Itâs only logical. Episode 18 âThe Seven-Segment Displayâ A Christmas Calendar from KOJRO RI
17:53
Itâs only logical. Episode 17 âLetâs DECODE something, Shall we ?â A Christmas Calendar from KOJRO.
23:45
Itâs only logical. Episode 16 âThe counting never ends..Literallyâ A Christmas Calendar from KOJRO.
14:37
Itâs only logical. Episode 15 âStill doing some countingâ A Christmas Calendar from KOJRO RI.
13:33
Itâs only logical. Episode 14 âCounting is easy, or is it?â. A Christmas Calendar from KOJRO RI.
15:00
Itâs only logical. Episode 13 âDivide and conquer with the SN7476â. A Christmas Calendar from KOJRO.
13:36
Itâs only logical. Episode 12 âWe look at the world through the Oscilloscopeâ. A X-mas Calendar.
14:19
Itâs only logical. Episode 11 âWe get serious about the J-K FFâ. A Christmas Calendar from KOJRO RI.
13:46
Itâs only logical. Episode 10 âThe Flip Flops are Floppingâ. A Christmas Calendar from KOJRO RI.
17:26
Itâs only logical. Episode 9 âWe are doing Flip Flopsâ. A Christmas Calendar from KOJRO RI.
09:04
Itâs only logical. Episode 8 âAnother one bites the BreadBoardâ. A Christmas Calendar from KOJRO RI.
14:06
Itâs only logical. Episode 7 âFirst bite of the Breadboardâ. A Christmas Calendar from KOJRO RI.
12:03
Itâs only logical. Episode 6 âThe XOR gateâ. A Christmas Calendar from KOJRO Retro Innovations.
10:56
Itâs only logical. Episode 5 âThe NOR gateâ. A Christmas Calendar from KOJRO Retro Innovations.
10:58
Itâs only logical. Episode 4 âThe NAND gateâ. Christmas Calendar from KOJRO Retro Innovations.
11:04
Itâs only logical. Episode 3. Christmas Calendar from KOJRO Retro Innovations.
12:12
Itâs only logical. Episode 2. Christmas Calendar from KOJRO Retro Innovations.
09:18
Itâs only logical, Episode 1. A Christmas Calendar from KOJRO Retro Innovations.
32:00
Even more things you donât need to know about the C2N / 1530 Datasette
19:30
Dumpster found PA6225 POS PC / Computer. Part 2. We know why, but have we saved it ?
38:03
Dumpster found PA6225 POS PC / Computer. Why did this end up there ?
40:13
The Commodore 1702, Part 1. We are blowing some fuses in our attempt to get info about this classic.
35:44
The inner workings of the PSU on the Laser200 RAM card from Arctic Retro
29:39
he ACT 386sx portable from Arima, Part 3 A deep dive into the unknown.
25:00
The ACT 386sx portable from Arima, Part 2 it suffers from memory loss.
41:37
The ACT 386sx portable from Arima, or most of it..
09:22
The Commodore 1802 Monitor, tying up some loose ends.
28:59
The Nerd's guide to the Commodore C2N
22:37
The Commodore 1802 Monitor, The good old Switcheroo
36:39
The Commodore 1802 Monitor, Part 2, Donât mind the CAP.
39:31
Building a NEW 8-BIT MSX machine in 2023 â Finally some progress !
X
About
KOJRO Retro innovations is a hobby project of mine where I try to keep alive some of the spirit and feel about computers and electronics that was present in the 70, 80, and 90âs. When things were so simple that one man alone could understand how and why something worked as it did. I have an obsession about service manuals, schematics and the DIY spirit that rose from having all that information available. This channel will be about repairing, modifying, or just presenting and testing old stuff. Commodore is a big part of my past, so the viewer must not be disappointed if there is a Commodore badge on much of the repair stuff. My background is highly technical mostly from a hardware or programming perspective, so for those who like to see game reviews this might be the wrong place to be.
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