Re: VAX 4000 PSU (H7874) Schematics

2018-06-07 Thread Bill Degnan via cctalk
There is a guy named at Joel from global-itcorp.com who has experience with these, he may have an idea. Tell him you spoke with Bill Degnan. b On Thu, Jun 7, 2018 at 3:49 PM, Aaron Jackson via cctalk < cctalk@classiccmp.org> wrote: > I am trying to repair a VAX 4000 power supply. Does anyone hav

VAX 4000 PSU (H7874) Schematics

2018-06-07 Thread Aaron Jackson via cctalk
I am trying to repair a VAX 4000 power supply. Does anyone have the schematics? I can't find anything on BitSavers and I'm not completely convinced it was even designed by DEC. The VAX turns on and the status LED stays on F. The DC lamp does not illuminate on the PSU. 5V rail appears fine but ther

Re: CDC 6600 display character generation

2018-06-07 Thread William Donzelli via cctalk
> This reminds me of every TV show and movie I've seen where consoles begin > exploding on a space ship during a battle. All of this time, I thought that > was entirely a Hollywood fabrication! Given all the jenky engineering in the tube circuits inside a DD60, I am surprised more of them did no

Re: CDC 6600 display character generation

2018-06-07 Thread Mark J. Blair via cctalk
> On Jun 6, 2018, at 11:50 PM, Rick Bensene via cctalk > wrote: > > Believe me, the console did spit out a lot of sparks and little blobs of > molten metal, along with quite a bit of smoke. I still have a small > scar on my left leg where one of the little blobs of metal burned me > after bur

RE: New Listings for Sellam's Collection Sales

2018-06-07 Thread Ethan via cctalk
Some of the Q-BUS stuff is very cheap. Pity I am in the UK. I thought the Atari Mega ST4 was a little expensive given its untested. I know it needs a special video lead to test but mine popped a video driver. Also technically it doesn't usually boot from disk. The OS is in ROM but it will read

Re: CDC 6600 display character generation

2018-06-07 Thread Paul Koning via cctalk
> On Jun 7, 2018, at 3:21 AM, Lars Brinkhoff via cctalk > wrote: > > Paul Koning wrote: >> I have converted the "chassis tabs 12" wire lists to a VHDL model, >> which you can find on my Subversion server. Run on GHDL, it >> demonstrates the behavior of the circuit and reproduces the document

RE: New Listings for Sellam's Collection Sales

2018-06-07 Thread Dave Wade via cctalk
Some of the Q-BUS stuff is very cheap. Pity I am in the UK. I thought the Atari Mega ST4 was a little expensive given its untested. I know it needs a special video lead to test but mine popped a video driver. Also technically it doesn't usually boot from disk. The OS is in ROM but it will read a

Re: New Listings for Sellam's Collection Sales

2018-06-07 Thread Carlo Pisani via cctalk
I can offer a free participation to my website http://downthebunker.chickenkiller.com/ 2018-06-07 15:40 GMT+02:00 systems_glitch via cctalk : > Prices have seemed fair to me, I've bought a bit of stuff off Sellam over > the last few months and he's been prompt in shipping, as well as willing to >

Re: New Listings for Sellam's Collection Sales

2018-06-07 Thread systems_glitch via cctalk
Prices have seemed fair to me, I've bought a bit of stuff off Sellam over the last few months and he's been prompt in shipping, as well as willing to combine shipping costs. Nothing wrong in not giving your hardware away. Thanks, Jonathan On Thu, Jun 7, 2018 at 12:59 AM, Sellam Ismail via cctalk

Re: CDC 6600 display character generation

2018-06-07 Thread Paul Koning via cctalk
> On Jun 7, 2018, at 2:50 AM, Rick Bensene via cctalk > wrote: > > ... > > Believe me, the console did spit out a lot of sparks and little blobs of > molten metal, along with quite a bit of smoke. I still have a small > scar on my left leg where one of the little blobs of metal burned me >

Re: VCF East Photo Thread

2018-06-07 Thread Liam Proven via cctalk
On Thu, 7 Jun 2018 at 04:14, Tony Aiuto via cctalk wrote: > > Mine here. It includes some bits from my other museums at the facility > > https://photos.google.com/share/AF1QipO6j53IKGboKAmsUmAdDoj4ugeEGd1igUOgfRMtBpIqaibPJX2USBG0crSDeICWsQ?key=aFpMdFNxYlBUZTBjTldJajN6RDlHVmJtblRhUTBn Thanks for t

Re: CDC 6600 display character generation

2018-06-07 Thread Lars Brinkhoff via cctalk
Paul Koning wrote: > I have converted the "chassis tabs 12" wire lists to a VHDL model, > which you can find on my Subversion server. Run on GHDL, it > demonstrates the behavior of the circuit and reproduces the documented > waveforms. > > I have also attempted to create a SPICE model of the DD60

Re: New Listings for Sellam's Collection Sales

2018-06-07 Thread Sellam Ismail via cctalk
Hi Randy. I have stuff that you can't find on eBay. And I am not offering the eBay experience. This is me, Sellam, you are dealing with. When I can find actual closing sales online (I need some place to start), I generally go on the lower end of the mean of the data I find. It's a collectors m