Re: Wanted: IBM PC compatible 8 or 16 bit Arcnet cards
On 12/13/21 2:44 PM, Ethan Dicks via cctalk wrote: The Doom application contained a network stack that would handle the higher layers. IIRC, you still had to load a packet driver shim, but perhaps not. It's been a lng time since I've done it. I know that Doom was an IPX capable network game. It's more that I had mis-categorized ARCnet in my head as an atypical / non-standard network. I now know that I was incorrect in that. But you definitely could play up to 4 players when each machine had an ARCnet card. Ethernet cards worked too but they cost a lot more at the time. https://apenwarr.ca/arcnet/howto/cabling.html You just take 4 BNCs and 4 resistors. Tie all the grounds together (can use a metal bar or wire or whatever) and connect one resistor to each core and tie all 4 resistors together. Interesting. Thank you for elaborating. In other words, ARCnet supports a Star topology that Ethernet does not. It's a token-passing scheme, not CSMA (collision detection). ACK -- Grant. . . . unix || die
Re: Wanted: IBM PC compatible 8 or 16 bit Arcnet cards
> > For my kids and their friends I used to set up several (up to like 5) > > bare motherboards first with lantastic 2MB cards and then NE2000 10mB > > compatible cards and play Doom over IPX back in the 90's. > > Yes. Thank you. IPX. That was the network layer. Mac Doom even plays over AppleTalk. LocalTalk suffered a bit though. -- personal: http://www.cameronkaiser.com/ -- Cameron Kaiser * Floodgap Systems * www.floodgap.com * ckai...@floodgap.com -- LOAD"STANDARD DISCLAIMER",8,1 --
Re: Wanted: IBM PC compatible 8 or 16 bit Arcnet cards
On Mon, Dec 13, 2021 at 5:06 PM Mike Katz via cctalk wrote: > For my kids and their friends I used to set up several (up to like 5) > bare motherboards first with lantastic 2MB cards and then NE2000 10mB > compatible cards and play Doom over IPX back in the 90's. Yes. Thank you. IPX. That was the network layer. -ethan
Re: Wanted: IBM PC compatible 8 or 16 bit Arcnet cards
For my kids and their friends I used to set up several (up to like 5) bare motherboards first with lantastic 2MB cards and then NE2000 10mB compatible cards and play Doom over IPX back in the 90's. On 12/13/2021 2:09 PM, Grant Taylor via cctalk wrote: On 12/12/21 10:28 PM, Ethan Dicks via cctalk wrote: I haven't used ARCnet since we used to use it for 4-player Doom (especially since not everyone in the gaming group had Ethernet at home yet and it was easy to make a passive 4-port ARCnet hub. I find this statement interesting for a couple of different reasons: 1) Paying Doom over ARCnet. -- I don't think I realized that ARCnet was standardized enough that normal networking applications would work over it. -- Naivety on my part. 2) "it was easy to make a passive 4-port ARCnet hub" ... I don't know how to respond to that with anything but curiosity and /many/ open ended questions.
Re: Wanted: IBM PC compatible 8 or 16 bit Arcnet cards
On Mon, Dec 13, 2021 at 3:09 PM Grant Taylor via cctalk wrote: > On 12/12/21 10:28 PM, Ethan Dicks via cctalk wrote: > > I haven't used ARCnet since we used to use it for 4-player Doom > > (especially since not everyone in the gaming group had Ethernet at > > home yet and it was easy to make a passive 4-port ARCnet hub. > > I find this statement interesting for a couple of different reasons: > > 1) Paying Doom over ARCnet. -- I don't think I realized that ARCnet > was standardized enough that normal networking applications would work > over it. -- Naivety on my part. The Doom application contained a network stack that would handle the higher layers. IIRC, you still had to load a packet driver shim, but perhaps not. It's been a lng time since I've done it. But you definitely could play up to 4 players when each machine had an ARCnet card. Ethernet cards worked too but they cost a lot more at the time. > 2) "it was easy to make a passive 4-port ARCnet hub" ... I don't know > how to respond to that with anything but curiosity and /many/ open ended > questions. https://apenwarr.ca/arcnet/howto/cabling.html You just take 4 BNCs and 4 resistors. Tie all the grounds together (can use a metal bar or wire or whatever) and connect one resistor to each core and tie all 4 resistors together. In other words, ARCnet supports a Star topology that Ethernet does not. It's a token-passing scheme, not CSMA (collision detection). Cheers, -ethan > > > > -- > Grant. . . . > unix || die
Re: Wanted: IBM PC compatible 8 or 16 bit Arcnet cards
On 12/12/21 10:28 PM, Ethan Dicks via cctalk wrote: I haven't used ARCnet since we used to use it for 4-player Doom (especially since not everyone in the gaming group had Ethernet at home yet and it was easy to make a passive 4-port ARCnet hub. I find this statement interesting for a couple of different reasons: 1) Paying Doom over ARCnet. -- I don't think I realized that ARCnet was standardized enough that normal networking applications would work over it. -- Naivety on my part. 2) "it was easy to make a passive 4-port ARCnet hub" ... I don't know how to respond to that with anything but curiosity and /many/ open ended questions. -- Grant. . . . unix || die
Re: Wanted: IBM PC compatible 8 or 16 bit Arcnet cards
On Sun, Dec 12, 2021 at 4:27 PM Jonathan Haddox via cctalk wrote: > I'll be following your progress with interest, I just installed Coax into > the walls of my computer playhouse so I can ARCNet with my S-100 system. I > have an ARCNet packet sniffer that can be loaned out if you would find it > helpful. > > Date: Sat, 11 Dec 2021 20:00:57 -0800 > From: Michael Brutman > > ... I've gotten to the point where I just want to have an Arcnet in > the house. I haven't used ARCnet since we used to use it for 4-player Doom (especially since not everyone in the gaming group had Ethernet at home yet and it was easy to make a passive 4-port ARCnet hub. -ethan
Re: Wanted: IBM PC compatible 8 or 16 bit Arcnet cards
Mike, I have some Pure Data PDI508+ ARCnet cards kicking around. I used them to develop the repair board for the funky DS1292 "Eliminator" (nonvolatile, battery-backed *shift* *register*) that they use. All, If you should happen to have Pure Data PDI508+ cards, we have rebuilds for the Dallas DS1292 they use -- the rebuilds aren't online yet as we haven't bothered to put them into production (this and some versions of the AST RAMpAT! use them). Thanks, Jonathan ‐‐‐ Original Message ‐‐‐ On Sunday, December 12th, 2021 at 13:06, Grant Taylor via cctalk wrote: > On 12/12/21 3:05 AM, devin davison via cctalk wrote: > > > Greetings, > > Hi Devin, > > > I had quite a few arcnet cards laying around a while back, I had picked up > > > > a ton of them from the back storage of a datacenter that was clearing out > > > > surplus equipment. I am uncertain of how many I still have in storage. How > > > > many do you need? > > I'd like to raise my hand as interested in some ARCNET cards. In a > > secondary capacity, after Michael gets his fill. > > > If you are able to wait a couple days, I can check how many I have > > > > remaining in storage, and I can ship them to you once found. > > I can easily wait. I've been occasionally looking for ARCNET cards over > > the years as I'd like to play with ARCNET for edutainment purposes. I > > have no /need/ for them, only a moderate /desire/. > > > -- > > Grant. . . . > > unix || die
Re: Wanted: IBM PC compatible 8 or 16 bit Arcnet cards
I'll be following your progress with interest, I just installed Coax into the walls of my computer playhouse so I can ARCNet with my S-100 system. I have an ARCNet packet sniffer that can be loaned out if you would find it helpful. - Jonathan On Sunday, December 12, 2021, 11:00:03 AM MST, wrote: Send cctalk mailing list submissions to cctalk@classiccmp.org To subscribe or unsubscribe via the World Wide Web, visit http://www.classiccmp.org/mailman/listinfo/cctalk or, via email, send a message with subject or body 'help' to cctalk-requ...@classiccmp.org You can reach the person managing the list at cctalk-ow...@classiccmp.org When replying, please edit your Subject line so it is more specific than "Re: Contents of cctalk digest..." Today's Topics: 1. Cheap PDP-8 boards on eBait (Noel Chiappa) 2. ISO: DEC PDP-8 Data Multiplexer (DM01, etc.) (Josh Dersch) 3. Re: Cheap PDP-8 boards on eBait (Ethan Dicks) 4. Wanted: IBM PC compatible 8 or 16 bit Arcnet cards (Michael Brutman) 5. Re: Wanted: IBM PC compatible 8 or 16 bit Arcnet cards (ED SHARPE) 6. Re: Wanted: IBM PC compatible 8 or 16 bit Arcnet cards (devin davison) -- Message: 1 Date: Sat, 11 Dec 2021 13:21:25 -0500 (EST) From: j...@mercury.lcs.mit.edu (Noel Chiappa) To: cctalk@classiccmp.org Cc: j...@mercury.lcs.mit.edu Subject: Cheap PDP-8 boards on eBait Message-ID: <20211211182125.6b73b18c...@mercury.lcs.mit.edu> This guy: https://www.ebay.com/sch/m.html?_ssn=jariadkin-0&_sop=10 has a couple of PDP-8 boards for sale that at the moment are going _really_ cheap. Noel -- Message: 2 Date: Sat, 11 Dec 2021 10:30:43 -0800 From: Josh Dersch To: "General Discussion: On-Topic and Off-Topic Posts" Subject: ISO: DEC PDP-8 Data Multiplexer (DM01, etc.) Message-ID: Content-Type: text/plain; charset="UTF-8" Hey all -- Got the TC01 working the other night, after a couple weeks of debugging (*). I'd like to be able to have both it and the RF08 that I'm working on connected to the 8/I and running at the same time, so I'm looking for a DM01 Data Multiplexer. If anyone has any leads, do let me know. Thanks as always, - Josh (*) Total TC01 fault count (so far): - Bad transistor in TU55 motor brake control (W040) - Bad jumper solder joints in TU55 (W990) - Timing of UTS and U+M one-shots (R303) way out of adjustment (U+M one-shot was at 2 seconds or so...) - Bad tape data relay (G851) - Bad IOT decoder transistor (W103) - Missing Diode (W113) and weak diode in Write enable selection logic - Timing of write clock way, way out of adjustment (90Khz vs. 125Khz expected.) - 24 dead maintenance panel bulbs - 2 dead TU55 bulbs (yet to be replaced) -- Message: 3 Date: Sat, 11 Dec 2021 16:31:45 -0500 From: Ethan Dicks To: Noel Chiappa , "General Discussion: On-Topic and Off-Topic Posts" Subject: Re: Cheap PDP-8 boards on eBait Message-ID: Content-Type: text/plain; charset="UTF-8" On Sat, Dec 11, 2021 at 1:21 PM Noel Chiappa via cctalk wrote: > This guy: > > https://www.ebay.com/sch/m.html?_ssn=jariadkin-0&_sop=10 > > has a couple of PDP-8 boards for sale that at the moment are going _really_ > cheap. Tap handles and DEC boards? Odd mix. I took a risk and bid. I have an -8/e and -8/m to fix. Thanks! -ethan -- Message: 4 Date: Sat, 11 Dec 2021 20:00:57 -0800 From: Michael Brutman To: "General Discussion: On-Topic and Off-Topic Posts" Subject: Wanted: IBM PC compatible 8 or 16 bit Arcnet cards Message-ID: Content-Type: text/plain; charset="UTF-8" I'm using debug logs to try to debug flow control issues when using mTCP and a packet driver that presents itself as Ethernet but actually uses ARCNET. I've gotten to the point where I just want to have an Arcnet in the house. Especially since I might just modify mTCP to work with Arcnet packet drivers and cards directly. Before I get too serious with eBay, does anybody want to rehome some Arcnet hardware? -Mike -- Message: 5 Date: Sun, 12 Dec 2021 04:19:06 +0000 (UTC) From: ED SHARPE To: cctalk@classiccmp.org, cctalk@classiccmp.org Subject: Re: Wanted: IBM PC compatible 8 or 16 bit Arcnet cards Message-ID: <1961633108.407863.1639282746...@mail.yahoo.com> Content-Type: text/plain; charset=UTF-8 I remember? you? could? get? arcnet? ?for? HP? 150? also? ?Ed#? In a message dated 12/11/2021 9:01:15 PM US Mountain Standard Time, cctalk@classiccmp.org writes:? I'm using debug logs to try to debug flow control issues when using mTCPand a packet driver that presents itself as Ethernet but actually usesARCNET.? I've gotten to the point where I just want to have an Arcnet inthe house.? Especially since I might just modify
Re: Wanted: IBM PC compatible 8 or 16 bit Arcnet cards
On 12/12/21 3:05 AM, devin davison via cctalk wrote: Greetings, Hi Devin, I had quite a few arcnet cards laying around a while back, I had picked up a ton of them from the back storage of a datacenter that was clearing out surplus equipment. I am uncertain of how many I still have in storage. How many do you need? I'd like to raise my hand as interested in some ARCNET cards. In a secondary capacity, after Michael gets his fill. If you are able to wait a couple days, I can check how many I have remaining in storage, and I can ship them to you once found. I can easily wait. I've been occasionally looking for ARCNET cards over the years as I'd like to play with ARCNET for edutainment purposes. I have no /need/ for them, only a moderate /desire/. -- Grant. . . . unix || die
Re: Wanted: IBM PC compatible 8 or 16 bit Arcnet cards
Greetings, I had quite a few arcnet cards laying around a while back, I had picked up a ton of them from the back storage of a datacenter that was clearing out surplus equipment. I am uncertain of how many I still have in storage. How many do you need? If you are able to wait a couple days, I can check how many I have remaining in storage, and I can ship them to you once found. --Devin D. On Sat, Dec 11, 2021 at 11:01 PM Michael Brutman via cctalk < cctalk@classiccmp.org> wrote: > I'm using debug logs to try to debug flow control issues when using mTCP > and a packet driver that presents itself as Ethernet but actually uses > ARCNET. I've gotten to the point where I just want to have an Arcnet in > the house. Especially since I might just modify mTCP to work with Arcnet > packet drivers and cards directly. > > Before I get too serious with eBay, does anybody want to rehome some Arcnet > hardware? > > > -Mike >
Re: Wanted: IBM PC compatible 8 or 16 bit Arcnet cards
I remember you could get arcnet for HP 150 also Ed# In a message dated 12/11/2021 9:01:15 PM US Mountain Standard Time, cctalk@classiccmp.org writes: I'm using debug logs to try to debug flow control issues when using mTCPand a packet driver that presents itself as Ethernet but actually usesARCNET. I've gotten to the point where I just want to have an Arcnet inthe house. Especially since I might just modify mTCP to work with Arcnetpacket drivers and cards directly. Before I get too serious with eBay, does anybody want to rehome some Arcnethardware? -Mike
Wanted: IBM PC compatible 8 or 16 bit Arcnet cards
I'm using debug logs to try to debug flow control issues when using mTCP and a packet driver that presents itself as Ethernet but actually uses ARCNET. I've gotten to the point where I just want to have an Arcnet in the house. Especially since I might just modify mTCP to work with Arcnet packet drivers and cards directly. Before I get too serious with eBay, does anybody want to rehome some Arcnet hardware? -Mike
