test-drb June 2005

test-drb@ccmp.vtda.org

221 participants
681 discussions

by jim＠g1jbg.co.uk

Jules, I've tried to send you a couple of messages off list re ASR33, but I'm not sure if you are receiving them. Jim Beacon Please see our website the " Vintage Communication Pages" at WWW.G1JBG.CO.UK

18 years, 11 months

system 36 on eBay

by mbbrutman＠brutman.com

Michael wrote: >> I have code in that thing .. (Specifically the low level OS that the 36 emulator is running on top of.) > Is that one of the machines that uses System/38 CISC hardware? Eric It's actually an early version of the RISC processor used in the more modern AS/400/iSeries machines. The memory is fuzzy now, so I may have some details incorrect. It was around 1994 and the System 36 was long since gone, and we were deep in product development of the new RISC based AS/400s. One use of the partially developed machine was as a System 36 replacement - with an emulator running on top of the partial OS of the new machine we could make the appearance of a System 36, and at a much better speed at that. Remember that for the port to RISC IBM had to rewrite a good portion of the OS to accomodate the new processor and hardware architecture. The older CISC based AS/400s used a 48 bit processor. The new ones were using a 64 bit variant of the Power PC. I don't think that most of the customers for the Advanced 36 (as this box was called) were aware that they were running on a pretty advanced PowerPC based machine. It was a nice trick. Mike

18 years, 11 months

Stuff I grabbed, stuff I missed...

by Arno_1983＠gmx.de

I think I have to pay a lot more attention to what I dig up... University cleaned out a lot of computer stuff, mainly Sun, some HP 9000. I was allowed to raid the junk box yesterday and got a good drive tray for my HP9000 (the SCSI cable was missing from the installed one). Also got quite a lot of sBus boards (FDDI, CDDI, Ethernet, ATM, framegrabbers, framebuffers), even some Creator UPA FBs, drive mounting brackets and cable kits for SS1/1+/2 enclosures. AUI adaptor cables for SS20 and Classic, AUI/Audio Splitters for SS10 / LX, TTY adaptor cables for IPC/IPX. Please enquire if you're interested in something (for pickup or S&H), I likely won't be needing the whole lot! There are also two SPARCclassics, about seven Ultra1-140 and one each SPARCstation 1, 1+ and 2 available; the SS1 comes with mg1 framebuffer and matching ECL monitor (which is a bit dim after all, sadly). I'll keep them locally (Erlangen/Nuremberg, Germany) so they are not threatened by trashing. Then again, I grabbed a MAGMA Serial 16 Breakout unit (connection box for a sBus card providing 16 serial ports), but couldn't find the actual card for it, even when I went through the box for the second time this morning. If anybody needs this unit or wants to get rid of the corresponding card, please let's get in touch! Max. idiocy factor was obviously reached when I bagged the two HP9000 EISA PSI cards (Dual-port Programmable Serial Interface J2815A, can do RS-232C/V24 or X.21/V11) but left all the proprietary cables in their sealed poly bags lying right next to them behind! Of course the whole pile was already gone when I realized what they were for. *repeatedly slaps forehead* If something can be done about this (by someone either having too much cables or too few cards) then I'm all ears as well. So long, yours sincerely -- Arno Kletzander Stud. Hilfskraft Informatik Sammlung Erlangen www.iser.uni-erlangen.de Geschenkt: 3 Monate GMX ProMail gratis + 3 Ausgaben stern gratis ++ Jetzt anmelden & testen ++ http://www.gmx.net/de/go/promail ++

18 years, 11 months

OFFER: Industrial monitors

by richlist＠sias.us

I have two FIXED frequency monitors that I have been unable to service. Mostly due to lack of schematics. 1. 1989 version "MaxPC" brand built by Toshiba 21". Remove the plastic cover and it is encased in metal all around. EMI protection? Weighs a ton. One day many years ago I backed up monitor stand until the vert adjust screwdrive left in back crushed the vert adj pot to smithereens. I got a horz bright white line. I took the pieces and took a guess at value and discovered somthing else died also. Freq is about 48KHz. 2. SUN 20D10 monitor. has a daughter card with a bunch of ittty bitty caps on it that are reputed to have bad ESR that is causing the bad UNadjustable pincoushion. Daughtercard seems to be one of those parts hung in midair and the mother board assembled around it, THEN the montor assembled around THAT! Freq is about 70-110 Khz I have boxes still if you want them shipped. Location is Warminster PA (near Philly) Assume 80lbs and they might be less at weigh in. Rich

18 years, 11 months

Two tubes

by leeedavison＠yahoo.co.uk

That should have read QQV03/20A. Lee. . ___________________________________________________________ Yahoo! Messenger - NEW crystal clear PC to PC calling worldwide with voicemail http://uk.messenger.yahoo.com

18 years, 11 months

Two tubes

by leeedavison＠yahoo.co.uk

A pair of QQV02/20A dual anode beam tetrode valves. Suitable for VHF PA stage. Unused. Collect or postage from UK. Lee. . ___________________________________________________________ How much free photo storage do you get? Store your holiday snaps for FREE with Yahoo! Photos http://uk.photos.yahoo.com

18 years, 11 months

"Pozidriv" [was Re: Tools (was: IBM 5155 analogue display fault]

by pete＠dunnington.u-net.com

On May 31 2005, 21:15, der Mouse wrote: > > I have a minimal tookit (flat blade, Phillips, Pozidriv, Torx, Allen > > keys) upstairs, [...] > > Which reminds me - I've seen this "Pozidriv" screw drive mentioned > elsewhere in this thread, as if it were a common type. Since there is > no screw drive type I know by that name, this leads me to wonder, what > is it? (It may be another name for one I know, or it may be one I > don't know but which is common in circles I've never moved in, or > perhaps I misread the references and it's not actually that common.) The URL Randy posted has a good picture. Pozidriv/Supadriv are similar to Philips, but the angles on the point of the driver are slightly different and the facets are ground flat in both directions, unlike Philips which are conical, which means that the driver grips the screw slightly better and both are less prone to wear. The intent is that when high turning force is applied, the driver won't ride out of the screw head, which happens with Philips screws. Another design feature is that the driver, if it's the correct size, is guaranteed to grip the screw, so you can pick up a screw with the driver and know it won't fall off while you're trying to insert it into a hole in an awkward place. Assuming the driver isn't excessively worn from being misused on Philips screws, of course :-) In practice, Pozidriv sizes are also slightly different from Philips so the screwdrivers are not interchangeable. They are widely used in Europe, almost to the exclusion of Philips screw heads. -- Pete Peter Turnbull Network Manager University of York

18 years, 11 months

Intel UPP103 Cable

by rsnats＠bellsouth.net

I have a Intel MDS-800 and a UPP-103. I don't have the cable that connects the two units. Both units have DB-25 D-type connectors. Does anyone have a wiring diagram of this cable.

18 years, 11 months

need a source of 7501 micros

by chrism3667＠yahoo.com

...as used in the Commodore Plus 4. Preferably new *lol*. Hey...you never know... __________________________________________________ Do You Yahoo!? Tired of spam? Yahoo! Mail has the best spam protection around http://mail.yahoo.com

18 years, 11 months

Tools

by dwight.elvey＠amd.com

>From: ard at p850ug1.demon.co.uk > >The Citroen BX Diesel (XUD engine) is even easier. Turn the engine to the >timing position and put 1 M8 bolt through a hole in the camshaft sprocket >(it screws into the cylinder head) and 2 through holes in the injection >pump sprocket (they screw into the block IIRC). Put a timing pin (an >Allen key will do) into the hole behind the starter motor so that it >slips into the hole in the flywheel. Remove the belt, fit a new one, >remove the pin and bolts, turn the engine 2 full turns by hand, then >check you can fit the bolts and pin back again. If so, it's correctly timed. > >-tony > Hi The Rover 2000 had two pins bolted to the engine. One pin held the flywheel while the other held the cam shaft. But then it was a chain and required a lot of disassembly to replace the chain. The main purpose was to hold things while one removed the cam shaft to install adjuster shims for the valve clearance. To make things a little more tricky, the same bolts that held the cam shaft bearings were also the head bolts :( Dwight

18 years, 11 months

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test-drb June 2005