June 2017 - vcf-midatlantic

The next Great VCF workshop July 15 & 16, 2017
by Jeffrey Brace 29 Jun '17

29 Jun '17

Sign up now or miss out on the most awesome VCF workshop: https://docs.google.com/spreadsheets/d/16G0w7Z5y15B2uWh-NKItmVnoJF-f3NIIFQD… -- ======================================================== Jeff Brace ======================================================== <https://www.avast.com/lp-safe-emailing-3177-b?utm_medium=email&utm_source=l…> Virus-free. www.avast.com <https://www.avast.com/lp-safe-emailing-3177-b?utm_medium=email&utm_source=l…> <#DAB4FAD8-2DD7-40BB-A1B8-4E2AA1F9FDF2>

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Semi-OT: microcontollers (?)
by Herb Johnson 29 Jun '17

29 Jun '17

I find Evan's responses satisfactory, and reasonable. If he says he wasn't opposed to old microcontroller discussions, good; sorry for my misunderstanding. And I wasn't out to attack him personally; just ideologically. I think prolonged discussions here of modern tools and architectures, in modern context, are to be discouraged. But as they are relevant to support vintage computing - RaspPi's emulating, WiFi chips on Commodore 64's, vintage architectures, etc. - then discussion is useful. I guess Evan started that discussion to make that point. Another discussion group, supports the COSMAC 1802. There's recent discussions there, of how USB/serial dongles complicate use of the 1802 at 2Mhz with a bit-banged (low baud rate, low response) serial interface. That discussion won't occur in USB world, or in Windows world - they would find such applications inexpiable, foreign. But I don't participate in those worlds - too "new". Thus discussion groups limit their range, for purpose. Herb Johnson -- Herbert R. Johnson, New Jersey in the USA http://www.retrotechnology.com OR .net

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Slightly OT
by Martin Flynn 29 Jun '17

29 Jun '17

Free inkjet cartridges 4 cyan. HP564xl 3 yellow. HP564xl Will drop off in IXR lab July 8th

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Looking for a mostly working SID chip
by Jason Perkins 29 Jun '17

29 Jun '17

My new-to-me C64 has a very failed 6581 SID. 2 voices are bad (one is mostly stuck on), it gets super hot, and after running for a while it makes the machine lock up. Does anyone have a mostly-working SID they would want to part with? PS: Sidbench shows just how broken this one is. I was rather bummed since this seems to be a low hour C64. https://www.youtube.com/watch?v=nU88B_mWQM8 Thanks, -- Jason Perkins 313 355 0085

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Cromemco JS-1 joysticks color
by Dan Roganti 29 Jun '17

29 Jun '17

anyone ever notice the difference in color of the Hammond clamshell case ? I dug out my JS-1 joysticks, which I picked up over the years, looking them over cause one of them needs a rebuild. I have a 3rd spare in case I needed parts, and the top cover of the clam shell has a different color. The bottom of the clamshell has the same blue color on all of them. One color is beige, and the other is a light gray. But they are original. I just never noticed they went thru a color change. Dan -- _ ____ / \__/ Scotty, We Need More Power !! \_/ _\__ Aye, Cap'n, but we've only got 80 col's !!

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Re: [vcf-midatlantic] WTB: DECbrouter
by Kenneth Seefried 28 Jun '17

28 Jun '17

From: Dave McGuire <mcguire(a)neurotica.com> > > If you need to route something like a T1 or T3 line, that's pretty > tough to do on anything but a purpose-built router due to support for > those types of hardware interfaces. > That's not really true, except for very exotic or very ancient interfaces. I have at various times had DDS/ISDN, T-1/CT-1, T-3/DS-3, HSSI as well as Ethernet, TR, FDDI and ATM up to OC12 running on x86 platforms under various open source OSes (usually FreeBSD or OpenBSD) in production. Admittedly, FDDI, TR & ATM support have aged poorly in OSS, I haven't tried HSSI in years, and not too many people are provisioning DS-3s or OC-12 these days given the alternatives. What you don't get on the open source platform relative to a Cisco, et. al., is the protocol support. Pretty much only IP and limited higher level serial protocols (SDLC/HDLC/PPP/SLIP). > > Further, for more modern circuits > like OC192s, etc, there really aren't too many general-purpose computers > available that can move data that fast in any predictable or consistent > way, > While I'm unaware of an OC192 card for, say, PCI-e, FreeBSD on modern systems using Intel or Chelsio PCI-e ethernet cards can reliably route between 10G ports at wirespeed. I haven't gotten any of the Chelsio 40G cards yet, but they're supported as well. There are lots of folks doing exactly this to avoid the cost of something like a Cisco 12000 series router. Not just in labs or moms basement; for example the NANOG mailing list regularly has folks talking about this sort of setup running with BGP as core infrastructure. Folks like ServU have built a business around Intel ecosystem + BSD + 1/10/40G routers. What you definitely don't get on OSS is more than rudimentary QoS. Sophisticated bandwidth management pretty much requires dedicated ASICs. > > and nothing anywhere near as reliable or internally redundant as > something like a big Cisco or Juniper machine. They exist with their > six-figure price tags for a reason. > I would agree with this. From: systems_glitch <systems.glitch(a)gmail.com> > > V.35 sync serial. You can *get* V.35 cards for PCs, but I'd imagine it's > not supported in most OSes I'd want to do routing in (namely, OpenBSD). > You'd be surprised. The Lan Media Corp sync serial cards are pretty well supported on OpenBSD. The Sangoma sync cards might be; the T-1 cards are. KJ

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Re: [vcf-midatlantic] WTB: DECbrouter
by Kenneth Seefried 27 Jun '17

27 Jun '17

From: Neil Cherry <ncherry(a)linuxha.com> > >How about an AT&T BRouter? I think it's a Cisco CGS (the smaller of >the 3). I think it's running a 9.x code (might be 10, I hope not). > IGS was the small one, no? Fixed 1 port net and 1 port wan? Sorta evolved into the 3000 series. CGS & MGS were in the middle and AGS was the big one. Last IGS I had ran IOS 8.x. Of course, you mention CGS now and it's the Cisco Gateway Switch. KJ

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Semi-OT: microcontollers
by Evan Koblentz 27 Jun '17

27 Jun '17

Let's use the "Semi-OT" subject line prefix for posts about microcontrollers. ________________________________ Evan Koblentz, director Vintage Computer Federation a 501(c)(3) educational non-profit evan(a)vcfed.org (646) 546-9999 www.vcfed.org facebook.com/vcfederation twitter.com/vcfederation instagram.com/vcfederation

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workshop prize! (speaking of microcontrollers)...
by Evan Koblentz 27 Jun '17

27 Jun '17

I went to Microcenter today seeking a screen protector for my new phone (they didn't have it) and decided to buy a $10 Pi Zero-W. They have a good supply of the Zero, -W, and Pi 3. Girlfriend was with me and she bought one too. I asked why, and she said it can be a prize to give out at our next workshop. Okay then! Some lucky attendee will get it. ________________________________ Evan Koblentz, director Vintage Computer Federation a 501(c)(3) educational non-profit evan(a)vcfed.org (646) 546-9999 www.vcfed.org facebook.com/vcfederation twitter.com/vcfederation instagram.com/vcfederation

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looking for intel 4040 programs
by Jonathan Gevaryahu 27 Jun '17

27 Jun '17

Does anyone on the list have any Intel 4040 programs, code listings or rom images lying around? So far the only ones I know of are Herb Johnson's stuff at http://www.retrotechnology.com/restore/intel440_roms.html -- Jonathan Gevaryahu jgevaryahu(a)gmail.com jgevaryahu(a)hotmail.com

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