test-drb

test-drb@ccmp.vtda.org

101090 discussions

by jnc＠mercury.lcs.mit.edu

> From: Lyle Bickley > I put a copy of the PDP-11/34 Cache manual - KK11-A.pdf on my website. Hi, got it - thanks for making this available; perhaps not the most important document out there, but for those with the hardware, fairly crucial! And sorry about the false alarm; it did indeed work fine a couple of hours later, once the DNS attack abated. Blasted crackers - they all need to be given a course of the bastinado. And to think that some of these half-wits think they are 'hackers'.... (blood boils). Noel

11 years, 7 months

PDP-11/34A cache

by jnc＠mercury.lcs.mit.edu

11 years, 7 months

OT? tubes of chips

by useddec＠gmail.com

I have the following tubes (multiples of each). Looking for offers, shipping from 61853. Please contact me off list. There may be a few typos in here. I also have a variety of Z80 series chips and maybe some Z8. Thanks, Paul MCM 4116AC25 MCM 41162N MCM 511001AP80 74F373 D2127A10H D2137 SN74S1898N MK4104J-N AM29C116DC UM6116-2 HM 4716A-3

11 years, 7 months

Goodnight, DDJ

by evan＠snarc.net

Dr. Dobbs went online-only a long time ago, but now it's being "sunsetted". http://www.drdobbs.com/architecture-and-design/farewell-dr-dobbs/240169421

11 years, 7 months

PDP-11/34A cache

by jnc＠mercury.lcs.mit.edu

Hi, all, I'm looking for any/alldocumentation for the PDP-11/34A cache, the KK11-A. (And no, it's not in the 11/34A print set!) At least one document does exist, the KK11-A Cache Memory Technical Manual (EK-KK11A-TM-001); this page references it: http://www.pdp-11.nl/pdp11-34a/cpu/options/cache-info.html but I can't find it online (well, someone's Flickr site has an image of one page of it, but that's all). The mention there of "cut the 'cache hit line' on the DD11-PK backplane" on that web page (above) has me concerned! But in general I'd like to know more about this board. Noel

11 years, 7 months

Keytronics foam pads revisited

by snhirsch＠gmail.com

I've fixed a couple of keyboards using hobby shop track bed foam, but have not been very happy with the "feel". That foam is considerably less resilient than the material Keytronics used. After trying a number of alternate materials, I have found something that is almost identical to the original. Take a look at eBay #171549720453 for an example. It's 5mm thick with an adhesive backing, sold for shoe inserts. I stuck 0.075" plastic sheet to the backing, then turned it over and used spray adhesive for the aluminized mylar. Worked like a charm. Just finished resurrecting a N* Advantage and the typing feel is (in my opinion) far better than the last unit I did with track-bed foam (Corvus Concept). Steve --

11 years, 7 months

Esprit Sytems Inc. Opus 220 Terminal SM needed..

by holm＠freibergnet.de

Hi guys, sometimes in the past I've reapired some OPUS 220 Terminals from Esprit Systems Inc, Melville NY for an other company. (I still have one left over that still works and I want to keep it for my 11/83) >From that time I still have new 3 Flyback Transformers here, and now I have to repair another Terminal (some Siemens Device) where the original FBT is sold out everywhere. I'm now searching for the display schematic part with the FBT from the Opus 220 Terminal to look if I could transplant one from the new FBTs to the Siemens Monitor. Sure, I could do some reverse engeneering in the Opus Terminal but hopefully one has what I need already? Thanks in advance, Holm -- Technik Service u. Handel Tiffe, www.tsht.de, Holm Tiffe, Freiberger Stra?e 42, 09600 Obersch?na, USt-Id: DE253710583 www.tsht.de, info at tsht.de, Fax +49 3731 74200, Mobil: 0172 8790 741

11 years, 7 months

EPROM image for Xylogics 472 (multibus Pertec controller)?

by derschjo＠gmail.com

Hi all -- Subject line covers the basics; I have a nice looking Xylogics 472 but someone has stolen the EPROM from it; anyone a) Know what size EPROM goes in this socket (24-pin) and/or b) Have an image of its contents So that I might replace it? Thanks as always, Josh

11 years, 7 months

Recaping a Macintosh Portable

by mspproductions＠gmail.com

Hello all, I have a Mac portable that refuses to even attempt to boot. I get random junk on the screen that is different on every power up, no drive activity and no sound. I am thinking the onboard surface mount electrolytics are due for replacement. I was able to read the values off of most of the caps but I was not able to read the follow caps. C4, C5, C15 and C24. Does anyone know what value those caps are? Thanks, Matt Sent from my iPhone

11 years, 7 months

OT : Chassis punches

by ard＠p850ug1.demon.co.uk

This is rather off-topic, although I will be using said chassis punches for classic computer restoration I am thinking of buying some chassis punches, in particular some of the ones for D connectors (and others). One brand I can easily get in the UK is Greenlee. Am I right that that is a respected manufacturer of them? Not cheap, but then I can't afford the cheap ones. Also Greenlee do an accesory called the Quick-Draw or something, a handheld hydraulic device that fits on said punches. It is darn expensive, but I want to know what advantages it gives. If it is just faster then I am not interested. If it means I can cut thicker metal then I might be. -tony

11 years, 7 months

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