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I suppose you could build the xt-ide for €20, 25euro if CF version, this is about the sameish maybe €30 with 11of that the SCSI IC.

This was a little personal experiement to see if I could combine the usefulness of BlueSCSI and its HD images with the PC , and have similar HD image capability with old PCs. In the PDF of the NCR 53C400 technical document there was a rough outline for a memory mapped SCSI card that was...

That looks smaller than the little Amstrad 5086

In the book "Build_Your_Own_Macintosh_and_Save_a_Bundle" 1992 it mentions that a Multisync TTL monitors were used with these boards, or modify MDA/Hercules monitors to the correct frequency. It also mentions the Princeton MAX-15 Monitor which was an autosynchronous monochrome monitor.

Spotted this in episode 2, just thought it was interesting thatLCD mods are still being done in 2071 :)

That sound like what its doing. I will give it another shot at the weekend.

It was cleaned in IPA but not in ultrasonic bath , but I have not gone back to it since .

In newer Macs yes , -5V is for serial

Its also universal input so it will work on 110V and 220V.

Just a size reference on the meanwell rpt 60b , but rpt-60a might be better as it has -5V, 5V and 12V

The Mac Plus requires 5V for logic things, +12V for floppy, and -12V for serial.

You could add a 7905 regulator to the -12V rail to get -5V, however the RPT 60A version has -5V,5V and 12V if -12V was not needed

Just guessing at looking at the ICS but the two long identical ICs are double UARTs so that 4 UARTs and a lot of the ICs are RS-422 drivers. So it looks like a serial I/O control board that works in an electrically noisy environment. With the card installed you could boot to DOS and use debug...

Oh great idea , on the PSU side , the Meanwell RPT-60B PSU would have the +5V,12V and -12V For video, the pi based RGB2HDMI (https://github.com/hoglet67/RGBtoHDMI) can do that And as a Pi it can do double duty as a retro station with the swap of an SD card.

It looks like the 17" Multiscan only goes down to 31.47kHz, not very many montors at the time could do 15kHz and 30kHz+ . but there is a list of them http://15khz.wikidot.com/ TFTs and I have attached a list of 15Khz capable CRT monitors

I dont know why its not in it. Maybe just overlooked. The Apple AppleColor 12" RGB Monitor (A2M6014) designed for IIGS 15Khz , thats the monitor I am after but dont think I will ever find one Specs below. This can work with some old Macintosh II cards that can output 640x200 NTSC, Then...

David is correct, there is more than just pin compatibility. There are no 15Khz Mac monitors. The 12" LC monitor is 24.48kHz

Yes indeed, actually I took a shot with the pi and a usb to adb adaptor (you can see it there on the right) All working fine, and attached a pic of the pi running the Mac emulator.