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Re: Z80 MC6845 video board examples [message #9859 is a reply to message #8440]

Tue, 12 April 2022 07:30

lynchaj
Messages: 1080
Registered: June 2016

Senior Member

Hi
One of the designs I've been looking at for a long time is the ZRT-80 terminal board. I am thinking of capturing this classic design in KiCAD and having some boards made. Before I leap into it though has anyone else done a recent version of ZRT-80? I am thinking maybe two versions; one a reproduction of the original and another somewhat updated with larger memory chips, TTL oscillators, a VT82C42 PS/2 keyboard controller instead of parallel, etc.

http://www.stippl.org/wb/pages/it/microcomputer-projekte/zrt -80.php

http://www.stippl.org/pics/t1_hw_5.jpg

http://www.retroarchive.org/cpm/misc/zrt80.zip

It is practically a tiny SBC by itself not unlike the Sinclair or similar machines

Thoughts?

[Updated on: Tue, 12 April 2022 10:20]

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[Message index]

		Z80 MC6845 video board examples By: lynchaj on Wed, 31 March 2021 04:36
		Re: Z80 MC6845 video board examples By: b1ackmai1er on Wed, 31 March 2021 23:25
		Re: Z80 MC6845 video board examples By: nealcrook on Fri, 02 April 2021 12:57
		Re: Z80 MC6845 video board examples By: lynchaj on Sun, 04 April 2021 06:53
		Re: Z80 MC6845 video board examples By: little_john on Sun, 04 April 2021 12:31
		Re: Z80 MC6845 video board examples By: lynchaj on Tue, 12 April 2022 07:30
		Re: Z80 MC6845 video board examples By: norwestrzh on Tue, 12 April 2022 09:50
		Re: Z80 MC6845 video board examples By: lynchaj on Tue, 12 April 2022 10:29
		Re: Z80 MC6845 video board examples By: lynchaj on Tue, 12 April 2022 10:54
		Re: Z80 MC6845 video board examples By: norwestrzh on Tue, 12 April 2022 14:44
		Re: Z80 MC6845 video board examples By: lynchaj on Tue, 12 April 2022 14:55
		Re: Z80 MC6845 video board examples By: plasmo on Tue, 12 April 2022 19:16
		Re: Z80 MC6845 video board examples By: norwestrzh on Wed, 13 April 2022 09:30
		Re: Z80 MC6845 video board examples By: plasmo on Thu, 14 April 2022 07:22
		Re: Z80 MC6845 video board examples By: gkaufman on Thu, 28 April 2022 07:51
		Re: Z80 MC6845 video board examples By: lynchaj on Sat, 30 April 2022 05:20
		Re: Z80 MC6845 video board examples By: etchedpixels on Tue, 17 May 2022 06:09

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