I have a Viewsonic VA912 which has worked well for me before in other circumstances, but doesn't go down to 26KHz. I can't find a VP150 on ebay or amazon at the moment, but I will keep a look out and see if there are any others with a lower horizontal frequency too. Looks like a VX715 might do the trick and I have found one of those!
From: j...@cimmeri.com <j...@cimmeri.com> Sent: 24 May 2020 17:21 To: r...@jarratt.me.uk; Rob Jarratt <robert.jarr...@ntlworld.com>; General Discussion: On-Topic and Off-Topic Posts <cctalk@classiccmp.org> Subject: Re: Alternative Monitor for VAXmate On 5/23/2020 8:45 AM, Rob Jarratt via cctalk wrote: As it looks like I am not going to be able to repair the monitor board for my VAXmate I am wondering if I can do anything with the outputs from the I/O board to drive an external monitor instead. ... I had a go at building this http://www.dasarodesigns.com/wp-content/uploads/2014/03/pet-composite-video- adapter.jpg feeding its output to a composite to VGA device to see if it would convert it to VGA, but no luck. Any ideas? For starters, try a Viewsonic VP-150. Syncs horizontally from 24-61khz. I use these or a few other monitors for syncing to odd DEC or HP systems. - John Singleton
