From cjl@maestro.com Ukn Feb 10 15:39:53 1994 Received: from SunSITE.Unc.EDU (calypso-2.oit.unc.edu) by maestro.Maestro.COM (4.1/MAESTRO-0.1/07-03-93) id AA07242; Thu, 10 Feb 94 15:38:58 EST Received: from watsun.cc.columbia.edu by SunSITE.Unc.EDU (5.65c+IDA/FvK-1.07) with SMTP id AA07297; Thu, 10 Feb 1994 15:32:11 -0500 Received: from mailhub.cc.columbia.edu by watsun.cc.columbia.edu (5.59/FCB/jba) id AA19092; Thu, 10 Feb 94 15:13:06 EST Received: from life.ai.mit.edu by mailhub.cc.columbia.edu with SMTP id AA22869 (5.65c+CU/IDA-1.4.4/HLK for lasner@watsun.cc.columbia.edu); Thu, 10 Feb 1994 15:13:04 -0500 Received: by life.ai.mit.edu (4.1/AI-4.10) for lasner@cunixf.cc.columbia.edu id AA13946; Thu, 10 Feb 94 14:33:57 EST Return-Path: Received: from relay1.UU.NET by life.ai.mit.edu (4.1/AI-4.10) for /usr/lib/sendmail -oi -fpdp8-lovers-request@ai.mit.edu pdp8-lovers-list id AA13792; Thu, 10 Feb 94 14:31:21 EST Received: from maestro.Maestro.COM by relay1.UU.NET with SMTP (5.61/UUNET-internet-primary) id AAwcrl13571; Thu, 10 Feb 94 14:29:41 -0500 Received: by maestro.Maestro.COM (4.1/MAESTRO-0.1/07-03-93) id AA06228; Thu, 10 Feb 94 14:28:24 EST Date: Thu, 10 Feb 1994 14:27:18 -0500 (EST) From: Charles Lasner Sender: Charles Lasner Reply-To: Charles Lasner Subject: Going through the dusty archives of pdp8-lovers To: pdp8-lovers@ai.mit.edu Message-Id: Mime-Version: 1.0 Content-Type: TEXT/PLAIN; CHARSET=US-ASCII Status: RO X-Status: Recently I have been organizing the older archives of this list. Files from several sources have contributed to a hopefully complete collection. (Thanks, James Narem!) In the interests of "better late than never" I will attempt to respond to some issues raised over the years. The original posting date will be included in the (somewhat trimmed) original articles, etc. Archives will be available on sunsite.unc.edu in the directory /pub/academic/computer-science/history/pdp8/pdp8-lovers Files are organized by months starting from the list's inception in February, 1989. Files are named similarly to the alt.sys.pdp8 archives held in the adjacent directory ../usenet/alt.sys.pdp8. 8902.lov for February, 1989 8903.lov for March, 1989 8904.lov for April, 1989 etc. Anyone who believes they can contribute to the accuracy of the archive should first retrieve the corresponding month's file to see how well we have done, etc. Note: some months may be entirely missing due to circumstances (either the list was temporarily defunct or no activity or just no known record for that period, etc.). Anyone who can fill in any "gaps" is requested to do so, etc. cjl From cjl@maestro.com Ukn Feb 10 15:19:48 1994 Received: from SunSITE.Unc.EDU (calypso-2.oit.unc.edu) by maestro.Maestro.COM (4.1/MAESTRO-0.1/07-03-93) id AA06936; Thu, 10 Feb 94 15:19:43 EST Received: from watsun.cc.columbia.edu by SunSITE.Unc.EDU (5.65c+IDA/FvK-1.07) with SMTP id AA05416; Thu, 10 Feb 1994 15:19:45 -0500 Received: from mailhub.cc.columbia.edu by watsun.cc.columbia.edu (5.59/FCB/jba) id AA19478; Thu, 10 Feb 94 15:17:48 EST Received: from life.ai.mit.edu by mailhub.cc.columbia.edu with SMTP id AA23483 (5.65c+CU/IDA-1.4.4/HLK for lasner@watsun.cc.columbia.edu); Thu, 10 Feb 1994 15:17:42 -0500 Received: by life.ai.mit.edu (4.1/AI-4.10) for lasner@cunixf.cc.columbia.edu id AA14320; Thu, 10 Feb 94 14:40:11 EST Return-Path: Received: from relay1.UU.NET by life.ai.mit.edu (4.1/AI-4.10) for /usr/lib/sendmail -oi -fpdp8-lovers-request@ai.mit.edu pdp8-lovers-list id AA14315; Thu, 10 Feb 94 14:40:09 EST Received: from maestro.Maestro.COM by relay1.UU.NET with SMTP (5.61/UUNET-internet-primary) id AAwcrm17840; Thu, 10 Feb 94 14:40:05 -0500 Received: by maestro.Maestro.COM (4.1/MAESTRO-0.1/07-03-93) id AA06426; Thu, 10 Feb 94 14:38:45 EST Date: Thu, 10 Feb 1994 14:30:59 -0500 (EST) From: Charles Lasner Subject: Reply to May 17, 1989 Posting To: PDP8-Lovers Cc: Charles Lasner Message-Id: Mime-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Status: RO X-Status: On May 17, 1989, the following was posted to PDP8-Lovers: >Posted-Date: Wed, 17 May 89 15:59:45 -0700 >To: Johnny Billquist >Cc: "Christopher R. Zach" , wally@aerospace.aero.org, > PDP8-LOVERS@mc.lcs.mit.edu, wally@lcs.mit.edu >Subject: Re: MACREL for OS/8... >In-Reply-To: Your message of "17 May 89 20:22:26 N." > <12494792009.15.1113.99900@KICKI.STACKEN.KTH.SE> >Date: Wed, 17 May 89 15:59:45 -0700 >From: wally@aerospace.aero.org [...] I have a program CCF (copy coded file) that will compress text. [...] Does anyone have this program currently? (Preferably in source form.) It could be useful for our current endeavors to archive PDP-8 files. cjl (maintainer of the sunsite.unc.edu PDP-8 and DECmate archives) From cjl@maestro.com Ukn Feb 12 21:48:30 1994 Received: from SunSITE.Unc.EDU (calypso-2.oit.unc.edu) by maestro.Maestro.COM (4.1/MAESTRO-0.1/07-03-93) id AA09699; Sat, 12 Feb 94 21:48:24 EST Received: from watsun.cc.columbia.edu by SunSITE.Unc.EDU (5.65c+IDA/FvK-1.07) with SMTP id AA25277; Sat, 12 Feb 1994 21:49:32 -0500 Received: from mailhub.cc.columbia.edu by watsun.cc.columbia.edu (5.59/FCB/jba) id AA22650; Sat, 12 Feb 94 21:49:29 EST Received: from life.ai.mit.edu by mailhub.cc.columbia.edu with SMTP id AA07732 (5.65c+CU/IDA-1.4.4/HLK for lasner@watsun.cc.columbia.edu); Sat, 12 Feb 1994 21:49:27 -0500 Received: by life.ai.mit.edu (4.1/AI-4.10) for lasner@cunixf.cc.columbia.edu id AA16761; Sat, 12 Feb 94 21:29:04 EST Return-Path: Received: from relay1.UU.NET by life.ai.mit.edu (4.1/AI-4.10) for /usr/lib/sendmail -oi -fpdp8-lovers-request@ai.mit.edu pdp8-lovers-list id AA16757; Sat, 12 Feb 94 21:29:02 EST Received: from maestro.Maestro.COM by relay1.UU.NET with SMTP (5.61/UUNET-internet-primary) id AAwczx19053; Sat, 12 Feb 94 21:29:01 -0500 Received: by maestro.Maestro.COM (4.1/MAESTRO-0.1/07-03-93) id AA09428; Sat, 12 Feb 94 21:27:46 EST Date: Sat, 12 Feb 1994 21:24:44 -0500 (EST) From: Charles Lasner Subject: Any info about faster -8? To: pdp8-lovers@ai.mit.edu Message-Id: Mime-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Status: RO X-Status: The following is an excerpt from an article previously posted to PDP8-Lovers in May, 1989. To: pdp8-lovers@mc.lcs.mit.edu Subject: PDP8/E with CACHE Date: Fri, 19 May 89 05:04:17 PST From: fucich@venera.isi.edu A PDP-8 with cache was designed and constructed by Professor David Casasent at Carnegie-Mellon University. This has a performance factor of 5 in comparison to the PDP8/E without cache. There is an article in Computer Design, pp. 83-89 Nov. 1971. Anyone have more info? cjl From cjl@maestro.com Ukn Feb 15 18:03:26 1994 Received: from SunSITE.Unc.EDU (calypso-2.oit.unc.edu) by maestro.Maestro.COM (4.1/MAESTRO-0.1/07-03-93) id AA20417; Tue, 15 Feb 94 18:03:22 EST Received: from watsun.cc.columbia.edu by SunSITE.Unc.EDU (5.65c+IDA/FvK-1.07) with SMTP id AA08505; Tue, 15 Feb 1994 18:04:34 -0500 Received: from mailhub.cc.columbia.edu by watsun.cc.columbia.edu (5.59/FCB/jba) id AA29615; Tue, 15 Feb 94 18:04:17 EST Received: from life.ai.mit.edu by mailhub.cc.columbia.edu with SMTP id AA14205 (5.65c+CU/IDA-1.4.4/HLK for lasner@watsun.cc.columbia.edu); Tue, 15 Feb 1994 18:04:03 -0500 Received: by life.ai.mit.edu (4.1/AI-4.10) for lasner@cunixf.cc.columbia.edu id AA18761; Tue, 15 Feb 94 17:36:17 EST Return-Path: Received: from relay2.UU.NET by life.ai.mit.edu (4.1/AI-4.10) for /usr/lib/sendmail -oi -fpdp8-lovers-request@ai.mit.edu pdp8-lovers-list id AA18756; Tue, 15 Feb 94 17:36:15 EST Received: from maestro.Maestro.COM by relay2.UU.NET with SMTP (5.61/UUNET-internet-primary) id AAwdkk05947; Tue, 15 Feb 94 17:35:39 -0500 Received: by maestro.Maestro.COM (4.1/MAESTRO-0.1/07-03-93) id AA20233; Tue, 15 Feb 94 17:32:48 EST Date: Tue, 15 Feb 1994 17:31:42 -0500 (EST) From: Charles Lasner Subject: Need e-mail address of Lee Nichols of Dupont To: pdp8-lovers@ai.mit.edu Message-Id: Mime-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Status: RO X-Status: The subject line says it all. Lee sent me e-mail, but my mail system can't figure out a workable reply. cjl From lcs@icad.com Ukn Feb 24 15:58:43 1994 Received: from SunSITE.Unc.EDU (calypso-2.oit.unc.edu) by maestro.Maestro.COM (4.1/MAESTRO-0.1/07-03-93) id AA23470; Thu, 24 Feb 94 15:58:33 EST Received: from watsun.cc.columbia.edu by SunSITE.Unc.EDU (5.65c+IDA/FvK-1.07) with SMTP id AA07574; Thu, 24 Feb 1994 15:59:38 -0500 Received: from mailhub.cc.columbia.edu by watsun.cc.columbia.edu (5.59/FCB/jba) id AA13107; Thu, 24 Feb 94 15:59:29 EST Received: from life.ai.mit.edu by mailhub.cc.columbia.edu with SMTP id AA18514 (5.65c+CU/IDA-1.4.4/HLK for lasner@watsun.cc.columbia.edu); Thu, 24 Feb 1994 15:59:27 -0500 Received: by life.ai.mit.edu (4.1/AI-4.10) for lasner@cunixf.cc.columbia.edu id AA03957; Thu, 24 Feb 94 15:41:50 EST Return-Path: Received: from relay1.UU.NET by life.ai.mit.edu (4.1/AI-4.10) for /usr/lib/sendmail -oi -fpdp8-lovers-request@ai.mit.edu pdp8-lovers-list id AA03952; Thu, 24 Feb 94 15:41:45 EST Received: from uucp2.uu.net by relay1.UU.NET with SMTP (5.61/UUNET-internet-primary) id AAweri04295; Thu, 24 Feb 94 15:41:45 -0500 Received: from icad.UUCP by uucp2.uu.net with UUCP/RMAIL ; Thu, 24 Feb 1994 15:41:45 -0500 Received: from wolfsburg by icad.icad.com (4.1/LCS-1.1) id AA07763; Thu, 24 Feb 94 14:20:22 EST Received: by wolfsburg.icad.com (4.1/LCS-1.1-client) id AA17408; Thu, 24 Feb 94 14:20:21 EST Sender: Larry Stone Date: Thu, 24 Feb 94 14:20:20 EST From: Larry Stone Reply-To: To: pdp8-lovers@ai.mit.edu Subject: ["David H. Silber" : DecMate IIs for sale.] Message-Id: Status: RO X-Status: Received: from glowworm.UUCP by icad.icad.com (4.1/LCS-1.1) id AA29886; Thu, 24 Feb 94 00:42:09 EST Received: from psyche.mit.edu by relay1.UU.NET with SMTP (5.61/UUNET-internet-primary) id AAwepa27469; Thu, 24 Feb 94 00:35:47 -0500 Received: from uu5.psi.com by psyche.mit.edu (4.1/DA1.0.4) id AA23450; Thu, 24 Feb 94 00:06:06 EST Received: from firefly.com by uu5.psi.com (5.65b/4.0.071791-PSI/PSINet) via UUCP; id AA20791 for ; Wed, 23 Feb 94 23:49:35 -0500 Received: by glowworm.uucp (/\==/\ Smail3.1.25.1 #25.1) id ; Wed, 23 Feb 94 23:28 Return-Path: Received: by glowworm.uucp (/\==/\ Smail3.1.25.1 #25.1) id ; Wed, 23 Feb 94 18:50 Message-Id: Subject: DecMate IIs for sale. To: suspects@psyche.mit.edu Date: Wed, 23 Feb 1994 18:50:10 +0000 () From: "David H. Silber" Reply-To: dhs@firefly.com X-Mailer: ELM [version 2.4 PL23] Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Content-Length: 765 Sender: dhs@firefly.com The government is unloading some ancient stuff. I figure that someone in this group desperately wants this stuff: Digital DecMate II Word processing equipment w/hard drive, monitors, keyboards and LQP02 printers (2 systems) 286/12 Mhz motherboards (10) Epson FX-850 dot matrix printers (2) Tatung Green Monitors (2) SOLD AS IS Viewing Thursday, Feb 24, 1994, 14:00-15:00 One Columbus Circle, Room G-255 Washington, DC 20002 Sealed Bids Only -- Bids should be given to Cathy Maida at the day of showing or delivered to her in Room G-255 by Noon on Friday, Feb 25, 1994. Bids will be opened on Feb 25. Successful bidders will be notified regarding payment and to arrange pick up merchandise. (sic) --- David H. Silber dhs@firefly.com From jones@pyrite.cs.uiowa.edu Ukn Feb 24 18:09:43 1994 Received: from SunSITE.Unc.EDU (calypso-2.oit.unc.edu) by maestro.Maestro.COM (4.1/MAESTRO-0.1/07-03-93) id AA26071; Thu, 24 Feb 94 18:09:27 EST Received: from watsun.cc.columbia.edu by SunSITE.Unc.EDU (5.65c+IDA/FvK-1.07) with SMTP id AA28118; Thu, 24 Feb 1994 18:10:26 -0500 Received: from mailhub.cc.columbia.edu by watsun.cc.columbia.edu (5.59/FCB/jba) id AA21225; Thu, 24 Feb 94 18:10:05 EST Received: from life.ai.mit.edu by mailhub.cc.columbia.edu with SMTP id AA05715 (5.65c+CU/IDA-1.4.4/HLK for lasner@watsun.cc.columbia.edu); Thu, 24 Feb 1994 18:10:01 -0500 Received: by life.ai.mit.edu (4.1/AI-4.10) for lasner@cunixf.cc.columbia.edu id AA11232; Thu, 24 Feb 94 17:38:12 EST Return-Path: Received: from ns-mx.uiowa.edu by life.ai.mit.edu (4.1/AI-4.10) for /usr/lib/sendmail -oi -fpdp8-lovers-request@ai.mit.edu pdp8-lovers-list id AA11221; Thu, 24 Feb 94 17:37:57 EST Received: from pyrite.cs.uiowa.edu by ns-mx.uiowa.edu (5.64.jnf/921215) on Thu, 24 Feb 94 16:37:53 -0600 id AA09907 with SMTP Received: by pyrite.cs.uiowa.edu (5.59/890218) on Thu, 24 Feb 94 16:37:35 CST id AA04601 Date: Thu, 24 Feb 94 16:37:35 CST From: Douglas W. Jones Message-Id: <9402242237.AA04601@pyrite.cs.uiowa.edu> To: pdp8-lovers@ai.mit.edu Subject: Rare Chips, continued Status: RO X-Status: >From my previous post: > > The most interesting chip I tracked down is the MH8641; the database lists > one remaining manufacturer for this chip, Tesla Elektronicke ... Of course, things are sometimes easier than they seem! I just walked across the street to the U of Iowa Engineering Electronics Shop, and walked out with a tube of new DS8640 (aka SP380) and DS8641 (the "rare" bus transceiver chip), made by National Semiconductor in 1984. They've got plenty more in stock, 8640 chips at $1.79, and 8641 chips at $1.20 each. Doug Jones jones@cs.uiowa.edu From bqt@minsk.docs.uu.se Ukn Feb 24 18:15:12 1994 Received: from SunSITE.Unc.EDU (calypso-2.oit.unc.edu) by maestro.Maestro.COM (4.1/MAESTRO-0.1/07-03-93) id AA26107; Thu, 24 Feb 94 18:15:03 EST Received: from watsun.cc.columbia.edu by SunSITE.Unc.EDU (5.65c+IDA/FvK-1.07) with SMTP id AA28916; Thu, 24 Feb 1994 18:16:18 -0500 Received: from mailhub.cc.columbia.edu by watsun.cc.columbia.edu (5.59/FCB/jba) id AA19145; Thu, 24 Feb 94 17:41:01 EST Received: from life.ai.mit.edu by mailhub.cc.columbia.edu with SMTP id AA02002 (5.65c+CU/IDA-1.4.4/HLK for lasner@watsun.cc.columbia.edu); Thu, 24 Feb 1994 17:40:58 -0500 Received: by life.ai.mit.edu (4.1/AI-4.10) for lasner@cunixf.cc.columbia.edu id AA09448; Thu, 24 Feb 94 17:14:32 EST Return-Path: Received: from sunic.sunet.se by life.ai.mit.edu (4.1/AI-4.10) for /usr/lib/sendmail -oi -fpdp8-lovers-request@ai.mit.edu pdp8-lovers-list id AA09443; Thu, 24 Feb 94 17:14:29 EST Received: from Minsk.DoCS.UU.SE by sunic.sunet.se (8.6.4/2.03) id XAA02293; Thu, 24 Feb 1994 23:14:28 +0100 Received: by Minsk.DoCS.UU.SE (Sun-4/630, SunOS 4.1.2) with sendmail 5.61-bind 1.5+ida/ICU/DoCS id AA28949; Thu, 24 Feb 94 23:14:26 +0100 From: Johnny Billquist Date: Thu, 24 Feb 94 23:14:25 MET Reply-To: bqt@minsk.docs.uu.se To: info-pdp11@transarc.com, pdp8-lovers@ai.mit.edu Subject: Collecting fo information... Message-Id: Status: RO X-Status: Hi, everybody. I don't know how many of you who might use WWW or Gopher, but Update (the computer club I'm involved in) are collecting all kind of information regarding computer history. Everything can be of interest. If you have something which you might think is worth sharing, please send us a copy (you can mail it to me, but preferrably to andersa@update.uu.se). If you want to get inspired, or just want to dig into a little history, you can access what we collect via WWW or Gopher at WWW.Update.UU.SE and Gopher.Update.UU.SE. Please spread this information to all who might be concerned. Johnny Billquist || "I'm on a bus CS student at Uppsala University || on a psychedelic trip email: bqt@minsk.docs.uu.se || Reading murder books pdp is alive! || tryin' to stay hip" - B. Idol From sml_michael@chstls.org Ukn Feb 24 18:15:19 1994 Received: from SunSITE.Unc.EDU (calypso-2.oit.unc.edu) by maestro.Maestro.COM (4.1/MAESTRO-0.1/07-03-93) id AA26126; Thu, 24 Feb 94 18:15:11 EST Received: from watsun.cc.columbia.edu by SunSITE.Unc.EDU (5.65c+IDA/FvK-1.07) with SMTP id AA28948; Thu, 24 Feb 1994 18:16:24 -0500 Received: from mailhub.cc.columbia.edu by watsun.cc.columbia.edu (5.59/FCB/jba) id AA16411; Thu, 24 Feb 94 16:48:20 EST Received: from life.ai.mit.edu by mailhub.cc.columbia.edu with SMTP id AA24943 (5.65c+CU/IDA-1.4.4/HLK for lasner@watsun.cc.columbia.edu); Thu, 24 Feb 1994 16:48:17 -0500 Received: by life.ai.mit.edu (4.1/AI-4.10) for lasner@cunixf.cc.columbia.edu id AA07034; Thu, 24 Feb 94 16:27:35 EST Return-Path: Received: from drgate.dra.com by life.ai.mit.edu (4.1/AI-4.10) for /usr/lib/sendmail -oi -fpdp8-lovers-request@ai.mit.edu pdp8-lovers-list id AA07029; Thu, 24 Feb 94 16:27:25 EST Received: from CHEMNG.DECnet MAIL11D_V3 by drgate.dra.com with SMTP id AA04904 (5.65c+/IDA-1.4.4 for ); Thu, 24 Feb 1994 15:30:17 -0600 Date: Thu, 24 Feb 1994 15:30:17 -0600 Message-Id: <199402242130.AA04904@drgate.dra.com> From: sml_michael@chstls.org To: pdp8-lovers@ai.mit.edu Status: RO X-Status: sign off pdp8-lovers Michael Huang From jones@pyrite.cs.uiowa.edu Ukn Feb 24 18:16:09 1994 Received: from SunSITE.Unc.EDU (calypso-2.oit.unc.edu) by maestro.Maestro.COM (4.1/MAESTRO-0.1/07-03-93) id AA26141; Thu, 24 Feb 94 18:16:04 EST Received: from watsun.cc.columbia.edu by SunSITE.Unc.EDU (5.65c+IDA/FvK-1.07) with SMTP id AA29081; Thu, 24 Feb 1994 18:17:10 -0500 Received: from mailhub.cc.columbia.edu by watsun.cc.columbia.edu (5.59/FCB/jba) id AA15919; Thu, 24 Feb 94 16:39:51 EST Received: from life.ai.mit.edu by mailhub.cc.columbia.edu with SMTP id AA23817 (5.65c+CU/IDA-1.4.4/HLK for lasner@watsun.cc.columbia.edu); Thu, 24 Feb 1994 16:39:49 -0500 Received: by life.ai.mit.edu (4.1/AI-4.10) for lasner@cunixf.cc.columbia.edu id AA06859; Thu, 24 Feb 94 16:22:15 EST Return-Path: Received: from ns-mx.uiowa.edu by life.ai.mit.edu (4.1/AI-4.10) for /usr/lib/sendmail -oi -fpdp8-lovers-request@ai.mit.edu pdp8-lovers-list id AA06854; Thu, 24 Feb 94 16:22:13 EST Received: from pyrite.cs.uiowa.edu by ns-mx.uiowa.edu (5.64.jnf/921215) on Thu, 24 Feb 94 15:22:12 -0600 id AA08998 with SMTP Received: by pyrite.cs.uiowa.edu (5.59/890218) on Thu, 24 Feb 94 15:21:54 CST id AA04487 Date: Thu, 24 Feb 94 15:21:54 CST From: Douglas W. Jones Message-Id: <9402242121.AA04487@pyrite.cs.uiowa.edu> To: pdp8-lovers@ai.mit.edu Subject: Rare chips Status: RO X-Status: I've recently spent some time in the library using their CDROM catalog of all IC and discrete components currently made on earth. In the process, I've uncovered sources that the catalog, at least, lists as current manufacturers of a number of chips that aren't exactly common but are needed to keep Omnibus machines alive and running: Lansdale Semiconductor seems to have inherited most of Signetics discontinued stuff, including the Utilogic (SP) series, and the Signetics 8000 series. 314 - 7 input nor gate 317 - dual 4 input expandable nor gate 380 - quad 2-input nor gate 384 - quad 2-input or gate 8250 - binary to octal decoder 8251 - BCD to decimal decoder 8881 - quad 2-input nand gate Note, on the 380, that Signetics came out with the 8T380 somewhat later, and that this is a pin for pin replacement with schmidt trigger inputs (the original SP380 didn't have schmidt trigger inputs). Phillips is listed as the current manufacturer of the 8T380. Both Lansdale and Phillips have lots of local distributors. The most interesting chip I tracked down is the MH8641; the database lists one remaining manufacturer for this chip, Tesla Elektronicke, 756 61 Roznov Pod, Radhostem, Czechoslovakia (beats me what the velvet revolution did to that postal address; is it the modern Czech replblik or the modern Slovak republic). I haven't placed any orders, so I don't know if you can actually get any of these chips. I also haven't been able to track down data sheets for any of them (although I did get the 8T380 data sheet). Doug Jones jones@cs.uiowa.edu From John_Wilson@mts.rpi.edu Ukn Feb 24 22:52:01 1994 Received: from SunSITE.Unc.EDU (calypso-2.oit.unc.edu) by maestro.Maestro.COM (4.1/MAESTRO-0.1/07-03-93) id AA29745; Thu, 24 Feb 94 22:51:56 EST Received: from watsun.cc.columbia.edu by SunSITE.Unc.EDU (5.65c+IDA/FvK-1.07) with SMTP id AA00350; Thu, 24 Feb 1994 22:53:14 -0500 Received: from mailhub.cc.columbia.edu by watsun.cc.columbia.edu (5.59/FCB/jba) id AA04640; Thu, 24 Feb 94 22:53:12 EST Received: from life.ai.mit.edu by mailhub.cc.columbia.edu with SMTP id AA04474 (5.65c+CU/IDA-1.4.4/HLK for lasner@watsun.cc.columbia.edu); Thu, 24 Feb 1994 22:53:10 -0500 Received: by life.ai.mit.edu (4.1/AI-4.10) for lasner@cunixf.cc.columbia.edu id AA26908; Thu, 24 Feb 94 22:39:17 EST Return-Path: Received: from rpi.edu by life.ai.mit.edu (4.1/AI-4.10) for /usr/lib/sendmail -oi -fpdp8-lovers-request@ai.mit.edu pdp8-lovers-list id AA26898; Thu, 24 Feb 94 22:39:13 EST Received: from MTS.RPI.EDU by rpi.edu (4.1/SMHUB41); id AA05144; Thu, 24 Feb 94 22:38:57 EST for PDP8-LOVERS@AI.MIT.EDU Date: Thu, 24 Feb 94 22:38:52 EST From: John_Wilson@mts.rpi.edu To: PDP8-LOVERS@ai.mit.edu Message-Id: <4149878@MTS.RPI.EDU> Subject: DS8641 Status: RO X-Status: I was able to get Nat'l Semi 8641's surprisingly recently from Ham Av, at $2.24 each. As far as I know they're still made. Why does your stockroom charge more for 8640's than 8641's? They're $1.49 from Ham Av. Jameco had SP380's listed for $.49 each within the last year, so if you want to stock up on spares they're the ones... John