Re: GT-40 etc.

On Sun, Jan 21, 2018 at 1:04 PM, Paul Koning wrote: >> On Jan 20, 2018, at 11:06 PM, Ethan Dicks via cctalk >> wrote: >> >> On Sat, Jan 20, 2018 at 8:32 PM, Paul Anderson wrote: >>> I think just the VR12, VR14, and the VR17. >>

Re: GT-40 etc.

On 1/21/18 12:04 PM, Paul Koning via cctalk wrote: > >> On Jan 20, 2018, at 11:06 PM, Ethan Dicks via cctalk >> wrote: >> >> On Sat, Jan 20, 2018 at 8:32 PM, Paul Anderson wrote: >>> I think just the VR12, VR14, and the VR17. >> OK. I've never had any

Re: GT-40 etc.

> On Jan 21, 2018, at 11:47 AM, Al Kossow via cctalk > wrote: > > HP1311A is what was used in Galaxy Game > https://www.hpmuseum.net/display_item.php?hw=732 > > The actual GG controller is a microcoded 2903 bitslice that sits on the Unibus > Supposed to be similar to

Re: GT-40 etc.

HP1311A is what was used in Galaxy Game https://www.hpmuseum.net/display_item.php?hw=732 The actual GG controller is a microcoded 2903 bitslice that sits on the Unibus Supposed to be similar to the VT-48 Didn't James build something (FPGA based?) to play the game? On 1/21/18 10:48 AM, Guy

Re: GT-40 etc.

> On Jan 21, 2018, at 10:13 AM, Al Kossow via cctalk > wrote: > > > > On 1/21/18 10:12 AM, Al Kossow via cctalk wrote: >> >> >> On 1/21/18 10:04 AM, Paul Koning via cctalk wrote: >> >>> Remember that the GT40 is a vector drawing display, not a raster scan. So >>>

Re: GT-40 etc.

On 1/21/18 10:12 AM, Al Kossow via cctalk wrote: > > > On 1/21/18 10:04 AM, Paul Koning via cctalk wrote: > >> Remember that the GT40 is a vector drawing display, not a raster scan. So >> you need a tube and associated deflection machinery that can handle high >> frequency X and Y

Re: GT-40 etc.

On 1/21/18 10:04 AM, Paul Koning via cctalk wrote: > Remember that the GT40 is a vector drawing display, not a raster scan. So > you need a tube and associated deflection machinery that can handle high > frequency X and Y deflection waveforms accurately. This is not easy, > especially with

Re: GT-40 etc.

> On Jan 20, 2018, at 11:06 PM, Ethan Dicks via cctalk > wrote: > > On Sat, Jan 20, 2018 at 8:32 PM, Paul Anderson wrote: >> I think just the VR12, VR14, and the VR17. > > OK. I've never had any of those. I'm more wondering what modern > tubes

Re: GT-40 etc.

On Sat, Jan 20, 2018 at 11:25 PM, Guy Sotomayor Jr wrote: >> On Jan 20, 2018, at 8:07 PM, Ethan Dicks wrote: >> On Sat, Jan 20, 2018 at 8:58 PM, Guy Sotomayor Jr wrote: >>> As I understand it, the power for the DACs actually comes

Re: GT-40 etc.

> On Jan 20, 2018, at 8:07 PM, Ethan Dicks wrote: > > On Sat, Jan 20, 2018 at 8:58 PM, Guy Sotomayor Jr wrote: >> As I understand it, the power for the DACs actually comes from the monitor >> (VR12/4/7) and >> thus you can’t use any monitor without

Re: GT-40 etc.

On Sat, Jan 20, 2018 at 8:58 PM, Guy Sotomayor Jr wrote: > As I understand it, the power for the DACs actually comes from the monitor > (VR12/4/7) and > thus you can’t use any monitor without some additional circuitry to provide > the power to the > DACs. Interesting. I

Re: GT-40 etc.

On Sat, Jan 20, 2018 at 8:32 PM, Paul Anderson wrote: > I think just the VR12, VR14, and the VR17. OK. I've never had any of those. I'm more wondering what modern tubes might work. > I might have an extra VT11 backplane. I may also have the backplane. I'm not as certain

Re: GT-40 etc.

As I understand it, the power for the DACs actually comes from the monitor (VR12/4/7) and thus you can’t use any monitor without some additional circuitry to provide the power to the DACs. TTFN - Guy > On Jan 20, 2018, at 5:32 PM, Paul Anderson via cctalk > wrote: > >

Re: GT-40 etc.

I think just the VR12, VR14, and the VR17. I might have an extra VT11 backplane. On Sat, Jan 20, 2018 at 7:10 PM, Ethan Dicks via cctalk < cctalk@classiccmp.org> wrote: > On Sat, Jan 20, 2018 at 6:46 PM, Marc Howard via cctalk > wrote: > > There was a guy in the

Re: GT-40 etc.

On Sat, Jan 20, 2018 at 6:46 PM, Marc Howard via cctalk wrote: > There was a guy in the Netherlands (I believe) who was trying to sell a > GT40 for $14K with no delivery option. Oof! > If I were on the east coast (or just not very busy) I would have higher on > the ebay

Re: GT-40 etc.

There was a guy in the Netherlands (I believe) who was trying to sell a GT40 for $14K with no delivery option. If I were on the east coast (or just not very busy) I would have higher on the ebay system just to get the GT40 + monitor. Marc On Sat, Jan 20, 2018 at 1:12 PM, Noel Chiappa via cctalk

Re: GT-40 etc.

> From: Al Kossow > vt11 is integrated into the 11/05 backplane on the gt40 Right (although I had forgotten that); I listed the 11/05 separately since I do have data on how much they've been going for - in an attempt to roughly value the lot. The GT40, however, no idea. (I recall one was

Re: GT-40 etc.

On 1/20/18 5:34 AM, Noel Chiappa via cctalk wrote: > $2000PDP-11/05 > $?? GT40 display hardware vt11 is integrated into the 11/05 backplane on the gt40 it looks like they took the display and changed the front panel to rack mount it. sadly, the light pen is missing, those are

Re: GT-40 etc.

> From: Kyle Owen > A tenth the price of the Twiggy Lisa makes that auction look almost > affordable! Final price was $5600. Yeah, whoever bought that got, IMO, a pretty good deal (as I predicted). It's a fair amount of money, but they got a _ton_ of stuff (probably literally :-). I

Re: GT-40 etc.

That actually seems not too bad. If I needed another big project I'd have really thought about bidding it up. Thanks, Jonathan On Fri, Jan 19, 2018 at 3:54 PM, Kyle Owen via cctalk wrote: > A tenth the price of the Twiggy Lisa makes that auction look almost >

Re: GT-40 etc.

A tenth the price of the Twiggy Lisa makes that auction look almost affordable! Final price was $5600. Kyle

Re: GT-40 etc.

I'm sure they're out there in bitsavers, but I have an original copy of the GT-40 engineering drawings. Sometimes it's nice to have the printed copy to work from. Bill On Fri, Jan 19, 2018 at 8:05 AM, Philipp Hachtmann via cctalk < cctalk@classiccmp.org> wrote: > > On 12.01.2018 23:24, Al

Re: GT-40 etc.

On 12.01.2018 23:24, Al Kossow via cctalk wrote: this is going to go for an insane amt of money Oh, yess! I am beginning to feel rich :-P

Re: GT-40 etc.

So sad. It is local pick up for me, but I have no place to store it. On Sun, Jan 14, 2018 at 12:01 AM, Fritz Mueller via cctalk < cctalk@classiccmp.org> wrote: > > > On Jan 13, 2018, at 1:09 PM, Noel Chiappa via cctalk < > cctalk@classiccmp.org> wrote: > > Ah; the dual-wide plug-in connector

Re: GT-40 etc.

On Jan 13, 2018, at 1:09 PM, Noel Chiappa via cctalk wrote: > Ah; the dual-wide plug-in connector soldered onto the back kind of threw me a > bit! Yeah it’s a bit weird, but mine has that too. It’s a pass-through, and It turns out, handily, that that you can plug in a

Re: GT-40 etc.

That one is going to go for an insane amount of money:

Re: GT-40 etc.

> From: Fritz Mueller > Definitely an RK11-C Ah; the dual-wide plug-in connector soldered onto the back kind of threw me a bit! > And it would make sense with the diablo and the RK05 in there. Right, but I wonder if the RK05 is on the same controller as the Diablo, or if the PDP-8

Re: GT-40 etc.

On 1/13/2018 10:15 AM, Ali via cctalk wrote: I'm going to disagree with Al, though - I don't think it's going to go for that much, it's 'local pickup only'. That's going to severely limit the bidder pool. For us non DEC aficionados why is there potential for the system to go for insane

Re: GT-40 etc.

On Jan 13, 2018, at 10:30 AM, Noel Chiappa via cctalk wrote: > that exposed backplane above it _might_ be an RK11-C... Definitely an RK11-C — having recently restored one in my 11/45, I can see the flying components on the backplane here are in just the right places.

RE: GT-40 etc.

> From: Ali > why is there potential for the system to go for insane amounts of money? I'm going to guess that Al had the GT40 in mind. (I wonder if that was named after the car, BTW?) I don't see anything else there that's _that_ desirable - the Diablo (aka RK02/RK03) is pretty rare,

RE: GT-40 etc.

> I'm going to disagree with Al, though - I don't think it's going to go > for that much, it's 'local pickup only'. That's going to severely limit > the bidder pool. For us non DEC aficionados why is there potential for the system to go for insane amounts of money? Does it have some rare piece of

Re: GT-40 etc.

> From: Paul Anderson > I wonder what happened to the third rack... And the TU-56... I'm going to disagree with Al, though - I don't think it's going to go for that much, it's 'local pickup only'. That's going to severely limit the bidder pool. Noel

Re: GT-40 etc.

wow On Sat, Jan 13, 2018 at 1:42 AM, Paul Anderson via cctalk < cctalk@classiccmp.org> wrote: > I wonder what happened to the third rack... > > On Fri, Jan 12, 2018 at 4:24 PM, Al Kossow via cctalk < > cctalk@classiccmp.org > > wrote: > > > this is going to go for an insane amt of money > > > >

Re: GT-40 etc.

I wonder what happened to the third rack... On Fri, Jan 12, 2018 at 4:24 PM, Al Kossow via cctalk wrote: > this is going to go for an insane amt of money > > https://www.ebay.com/itm/232628720694 > >