On Thu, Jun 30, 2011 at 8:57 PM, Liam Proven <lproven at gmail.com> wrote: Does it work with the Mac? It could be that it's just plain broken... Mike

I would think it has to be broken. If the info is correct, Hitachi specified scanning would start at 31 khz (vga) not 35 khz (mac). Mac and pc video is different in that one uses negative going sync (and video?) pulsed, the other positive. Mac video is industry standard it would seem, as so many of these fixed freqs readily work w/macs (found one once that wouldn't, a Sony GDM-can't remember, 48khz. I chalked it up to sync pulse width or something, but don't really know. Maybe it was a weirdo and expected opposite polarities). IBM ps/2 may have been intentionally less compatible? Of course there were 3rd party cards that presumably would plug right up to these monitors (and I still have 2 IBM/Sony GDM-1932s or something, trinitron. I think they may have been intended for AIX equipment, cad/cam for sure though). --- On Fri, 7/1/11, Michael Kerpan <madcrow.maxwell at gmail.com> wrote:

I used one of those many years ago - probably the best monochrome tube I have ever seen. -- Will

On 1 Jul 2011 at 12:35, Chris M wrote: At least one firm, Mirage, for years made a regular business of supporting fixed-frequency monitors on PC gear. Their regular web site looks as if it's rotting away, but archive.org has plenty of old pages. I used their VGA cards (both ISA and PCI) with HP (Sony) workstation nonitors, and earlier with Daisy monitors. They worked very well, and compared to the quality and prices of multisync PC monitors, were a bargain. Mostly, cards were commodity with different BIOS code. I think I may still have one based on a Tseng 6000 PCI card. http://www.mirage-mmc.com/ --Chuck

I assume you cvan get a picture on it using the Mac (in other words, there's no some fault in the monitor). It's not someting silly like the Mac provides sync-on-green and the PC odesn/t or the Mac provided composite sync and the PC doesn't, or soemthing like that? When you say 'no picture', is it going out of standby? Does it think it's getting syncs? I once had a realyl evil 'fault' with a monitor. It was a VGA thing and it had a DE15 socket on thge abck. With it was a cable with a DE15 plug on each end. I connecterd it up, and got nothing on the scrreen. Me being me, I unplugged the cable from the computer and found I had syncs on the apporprate pins of the DE15 socket. I connected the cable at the computer end only and found I didn't have syncs at the monitor end. Buzzing out the cable showed ti was not straight-through wired. And tht it wasn't symmetircal. It mattered which end went to the computer and which to the moonitor. After swapping it round I got a good disply. The _only_ differfence between the moulded DE15 plugs on the cable was the colour of the isulator between the pins. The hoods were the same greay colour as the rest of the cable. There were no identifiaction marks or labels either. ARGH! -tony