Re: Also WTB: DEC VSXXX-AA Mouse or Compatible
> On Feb 11, 2022, at 2:52 PM, Jonathan Stone via cctalk > wrote: > > > If available, I'd like to purchase a bunch. FWIW: it would not be all that hard to convert from readily available USB (or PS2) mice to DEC protocol. I did the analogous work for keyboards (LK201) on Arduino. That same hardware could do this job with different firmware Someone asked me about that a while ago; it's not something I would undertake because I don't have any relevant systems to use it on, but it doesn't look like a difficult job. paul
Re: Also WTB: DEC VSXXX-AA Mouse or Compatible
if you end up buying "a few kilograms" of those mice, I could use a couple, too (I'm also in the Bay Area). On Fri, Feb 11, 2022 at 11:52 AM Jonathan Stone via cctalk < cctalk@classiccmp.org> wrote: > > If available, I'd like to purchase a bunch. I am setting up a lab to work > on X11 (and then accelerated X11) support for NetBSD, on: > - Vaxstation II > - Vaxstation II/GPX > - vaxstation 2000 with 8-plane GPX, and mono if I can find another chassis > - microvax 3100 with. mono, GPX, and/or SPX > - DECstation 5000 with a range of Turbochannel graphics options (and > 3100s if I fix more PSUs) > - Dec 3000 AXP, with a range of Turbohannel graphics options ( I have > 300, 500, 600, and 700) > > I vaguely recall someone (in Australia?) mentioning they had -CA or -GA > mice "by the kilogram". I'd pay fair price and shipping to the USA. > (I live in the San Francisco Bay Area) . > > Obviously I can move a single mouse around if required, but that can cause > issues on reboot when no mouse is present. > > 3W3 to BNC. (BC29G), BC18P/BC19S, DEC DB15-to-RGB (mono or RGB, > BC23J-03?), and DEC DB15 to mouse/keyboard cables (17-02640-01), also > sought after.j >
Also WTB: DEC VSXXX-AA Mouse or Compatible
If available, I'd like to purchase a bunch. I am setting up a lab to work on X11 (and then accelerated X11) support for NetBSD, on: - Vaxstation II - Vaxstation II/GPX - vaxstation 2000 with 8-plane GPX, and mono if I can find another chassis - microvax 3100 with. mono, GPX, and/or SPX - DECstation 5000 with a range of Turbochannel graphics options (and 3100s if I fix more PSUs) - Dec 3000 AXP, with a range of Turbohannel graphics options ( I have 300, 500, 600, and 700) I vaguely recall someone (in Australia?) mentioning they had -CA or -GA mice "by the kilogram". I'd pay fair price and shipping to the USA. (I live in the San Francisco Bay Area) . Obviously I can move a single mouse around if required, but that can cause issues on reboot when no mouse is present. 3W3 to BNC. (BC29G), BC18P/BC19S, DEC DB15-to-RGB (mono or RGB, BC23J-03?), and DEC DB15 to mouse/keyboard cables (17-02640-01), also sought after.j
Re: TTL substitute for DTL
On 2/10/22 22:39, Brent Hilpert wrote: > On 2022-Feb-10, at 9:50 PM, Chuck Guzis via cctalk wrote: > >> I've got a piece of gear here with a bad MC858P used as a bus >> driver--terminated in 220/330 ohms at the far end. >> >> Given that old DTL is a hit-or-miss proposition, I'm proposing to >> substitute a 7438 OC buffer. Pinout's the same, as is Vcc. >> >> Before I get out the soldering iron, any "don't do it" thoughts? > > > Are you sure the pinouts match? The Moto book I'm looking at indicates the > 858 gates are 'pointing to the middle' (outputs:3,4,10,11) in contrast to the > 7438 common 'all gates pointing to the right' (outputs:3,6,8,11). > > I've replaced DTL with TTL on occasion or two in the past. They're both > current-sinking logic so they work together well enough as far as > output-input drive. Close enough--using an SOIC-to-DIP breakout board, swap pins 8-10 and 6-4 and Bob should be your uncle. Use 7438 SOIC, of course. At least I believe that should work. Prices for NOS DTL are predictably crazy. --Chuck
Re: WTB: DEC VSXXX-AA Mouse or Compatible
Wow, that was quick! Mouse acquired. Thanks, Jonathan --- Original Message --- On Friday, February 11th, 2022 at 10:06, Jonathan Chapman via cctalk wrote: > All, > > I'm looking for a DEC VSXXX-AA "hockey puck" mouse or compatible for a > VAXstation 3100. > > Thanks, > > Jonathan
WTB: DEC VSXXX-AA Mouse or Compatible
All, I'm looking for a DEC VSXXX-AA "hockey puck" mouse or compatible for a VAXstation 3100. Thanks, Jonathan
Re: Wanted: Pinout IDT 49C402 PGA84
Glen Slick via cctalk wrote:
> On Thu, Feb 10, 2022 at 3:21 PM Maciej W. Rozycki via cctalk
> wrote:
> >
> > On Thu, 10 Feb 2022, Holm Tiffe via cctalk wrote:
> >
> > > Has anyone a databook newer than 1989 where the PGA84 Pinout is listed?
> >
> > It seems like datasheetarchive.com has a copy of a 1995 datasheet listing
> > what you need ("IDT49C402/A/B 16-BIT CMOS Microprocessor Slice", IDT doc
> > #9011; original, not a scan). I have just downloaded it.
>
> See also:
>
> http://www.bitsavers.org/components/idt/_dataBooks/1995_IDT_High-Performance_Logic_Data_Book.pdf
>
> Chapter 11, 16-BIT CMOS MICROPROCESSOR SLICE
> IDT49C402, IDT49C402A, IDT49C402B
> Page 4 of Chapter 11, PGA TOP VIEW
Thx Maciej and Glen, got the files now..
Kind Regards
Holm
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