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Wow! Brings back lots of memories with my Mac Plus! Thanks!

The tape unit was a huge step back from its predecessor, the P2000T, which had superfast fully automatic mini-tapes.

I saw a picture of Gary Kasparov using one of these, so naturally I had to find out more about this model. I never knew much about this part of the ST range. They look pretty good for their time. Thanks for the video!

I want to see Mac Attack, including its intro. 🥺

Awesome work

Awesome computer!!!!

How to read code from pic16f628a?

So good and so clear! Thnks

Hey, the link to the website where you can download the K-150 PIC Programmer USB Windows Drivers software seems not to work, is there another website?

I wouldn't buy a non-working ZX-81 because the most likely source of the problem is the ULA and then good luck getting a replacement.

with your mod does the internal drive operate at the same time as the external drive? Doing the D0 D1 flip does not seem to stop the motor signals going to both when using the external drive as the boot drive.

Thank you very much for this video. I have an issue with this panel. Top half of the board displays only green and blue. It is displaying red. However it works sometimes. I am using esp32 with GpxMatrix library. Exept for the red not showing clearly every thing works nicely. On checking I found the one of wires in the strip connector was open. I changed it. It worked for sometime randomly. Even the orange color I had given shows as green ( because of red not working properly). Can you tell which component on the board could be checked or why this is happening ? . Dc voltage is 5.2 volt from a 2 amp supply. Does the A, B,C,D pins has got anything to do with lower half and upper half ? Lowever half works nicely showing all the defined colors. Thank you

I miss my Mega ST2. The motherboard on mine looked like the one you picked up for a spare. Where the RAM chips are is an outline of where more chips could go. I soldered in sockets on all of mine and added more RAM and turned mine into a Mega ST4. I never had a color monitor for it. I got the monochrome monitor as I used mine for Desktop Publishing with PageStream.

I used Arduino Mega (with direct connection pins) to tester PLA. Using TinyGo language. Very simple. Thanks.

thank you 👍 subbed

Risk microchips are not for me. Stay safer, live longer!

Great Video! I was looking at something to explain the RAM in my C64. Its been having RAM issues. Thanks!

Can i used rt809h for that

I love this. It's very similar to the way an old school CRT would scan, these are perfect for making retro game screens with. The black spacees in between the pixels. Almost simulates CRT perfectly. It would be my dream to see some sort of driver that could arrange an analog signal into an LED matrix cleanly and without lag, but what we have now will work

I made it it is working fine How to increase time font size

I.must have owned one of these as my hard drive back in the day wasnt as large as the Megafile units. Sad that i don't recognise it. I wirked all summer at a Texas Homecare DIY store to afford the drive, needed because compiling Pascal code required swapping floppies at every rewrite of the code :)

Powermac G3 doesnt have a superdrive

why are you connecting from hub75 input to output ? isnt output to daisy chain to another display ????

Yes, Windows 7 is outdated, but it was and STILL is the best windows yet, in my opinion. Excellent video.

Good information. How can I make a code for setting an output by a pushbutton as a input...? Do you have any tutorial for this?

Hi, I'm using epm7032slc44-10 for my custom made 6502(TTL) cpu computer, but my CPLD has 3.3 V on output, do you maybe know a way to output on this chip 5v?

Please show software part as well

you can test the sram with your eeprom programmer 😀

Informative and clear explanation

😮

What is the Part Number of the USB Connector for the Bridge?

Thank you , ithink this is the best video ever for explaining RGB modules 😊😊👏👏👏👏💪

Nice fixes there! That's quite a modified unit.

Vertical bar

Led panels showing vertical bar

Thank you! For great project

Just a comment about the UK mains plug fuse. It's not there because we have 30A ring circuits - each circuit has a breaker - but to protect the device mains cable in case of a short inside the powered device. Many device cables, including in the EU, will melt and/or catch fire, or at least get very hot at currents allowed by the circuit breaker. The fuse should be rated appropriately for the device in question, regardless of the current rating of the supply circuit to which it is connected.

ah yes, Dutch macos

The successor video grabber, which still had this housing in the operating instructions, was completely unusable: th-cam.com/video/oRJzF2FXpHY/w-d-xo.html

I still use my veteran Veleman P8048 board, but I connect a a Pikcit 3 on the ICSP header. right now it has a 4 MHz crystal and a PIC16F84A mcu. The part around the serial port is no longer in use.

RA4 GPIO of PortA is an open drain port so, can LED's be interfaced to other PortA pins (which are stated as CMOS) in current sink or current source methods? Also can an Switch be interfaced to RA4 with an 10k resistor pulled up to Vcc and switch connected to ground to read an active low signal when the switch is pressed?

I have K150 programmer too. But as you said that the K150 chip supports only the operating system of Windows 7 SP3 and below. Then i quit trying after that. I didn't check for years. We need a new programmer 😁

Great to see people supporting old hardware with replacement options.

The diagnostic cartrige would show you which RAM chip failed/MMU - over serial connection. You were lucky!

@ezContents Your project is Great!!! I did build and it works great!!! Please! Could anybody help me? Let me know if Is possible to use this device to test 4116 ones? I know how to generate -5v, +5v and +12v to power that chip. There is a way to use your device to test 4116 too? Very thanks once more!

nice video. so this is only a retro thing right, they dont get produced anymore?

Thanks for the video.

Great video. I have a p3 64x64 panel that only has letters abce there is a gnd pin where the d normally is. I havent been able to find a way to drive it. I have 7 of them....

why do not use a capacitor to add delay?

Lot of work for such old computer :-) But if you can get the megabit D-ram for low cost, why not upgrade the Atari to 4 MB? I believe it can be done with the piggybank method ;-)