Re: Pertec Tape Drive Interface Musings
>If you're willing to run MSDOS with an appropriate ASPI driver, >I can send you a utility that I know works []You're >welcome to the source code. >--Chuck Chuck, Could you share your DOS code with me too? I just assembled the hardware for that: a self loading HP88780B SCSI-1 9-track Tape Drive, a vintage DolchPac 65 PC that can multi boot XP, Win98 and DOS fitted with an old SCSI-1 card. And I am reading the SCSI protocol book in the evenings ;-). Your DOS SCSI tape software and source would give me a prodigious head start... I also have Pertec-interfaced Overland Data tape drive, that will be step 2. This is a more straightforward interface. And an HP-IB interfaced HP7970E tape drive waiting in the wings. Marc
Re: Was there 3rd party DEC PRO CTI boards?
On 2015-08-05 07:53, Pontus Pihlgren wrote: Hi Out of curiousity, since I now have a DEC PRO380. Was there any third party manufacturer of CTI expansion boards? Yes, there were some other companies that did some boards for the PRO. Never seen any in the wild, though. But I have some DEC handbook that listed a few. I can look it up when I'm back home. (In Sweden now...) Johnny -- Johnny Billquist || "I'm on a bus || on a psychedelic trip email: b...@softjar.se || Reading murder books pdp is alive! || tryin' to stay hip" - B. Idol
Re: Was there 3rd party DEC PRO CTI boards?
On Wed, Aug 05, 2015 at 10:42:10AM +0200, Johnny Billquist wrote: > On 2015-08-05 07:53, Pontus Pihlgren wrote: > >Hi > > > >Out of curiousity, since I now have a DEC PRO380. Was there any third > >party manufacturer of CTI expansion boards? > > Yes, there were some other companies that did some boards for the > PRO. Never seen any in the wild, though. But I have some DEC > handbook that listed a few. I can look it up when I'm back home. (In > Sweden now...) > Please do, it would be fun to learn what they were. If you remember which handbook I could go look on bitsavers. /P
Re: Was there 3rd party DEC PRO CTI boards?
On 2015-08-05 10:51, Pontus Pihlgren wrote: On Wed, Aug 05, 2015 at 10:42:10AM +0200, Johnny Billquist wrote: On 2015-08-05 07:53, Pontus Pihlgren wrote: Hi Out of curiousity, since I now have a DEC PRO380. Was there any third party manufacturer of CTI expansion boards? Yes, there were some other companies that did some boards for the PRO. Never seen any in the wild, though. But I have some DEC handbook that listed a few. I can look it up when I'm back home. (In Sweden now...) Please do, it would be fun to learn what they were. If you remember which handbook I could go look on bitsavers. It's a handbook about software solutions for the DEC Professional. Not sure it's on bitsavers... I need to get back to check the full title. Johnny -- Johnny Billquist || "I'm on a bus || on a psychedelic trip email: b...@softjar.se || Reading murder books pdp is alive! || tryin' to stay hip" - B. Idol
RE: Booting an IBM MP 3000 S/390 System
Guy; That's just plain awesome :) J
Re: Booting an IBM MP 3000 S/390 System
Oh that is awesome. Lee C. On Tue, Aug 4, 2015 at 11:20 PM, Guy Sotomayor wrote: > I spent some time today and made a video of my MP 3000 system booting up > to z/OS. The video is here: http://youtu.be/WnJmeQR0GQU. > > Even though the video is about 9-1/2 minutes long, it takes longer than > that to boot. I edited out some of the more boring bits. ;-) > > TTFN - Guy > > -- Lee Courtney +1-650-704-3934 cell
VT340, VT340+, and other monitor repairs
Anyone interested in repairing some monitors in exchange for DEC gear or possible cash? sorry, US only because of shipping. Please contact me off list if you are interested. Thanks, Paul
RE: Saved DEC kit
> Hmm…. 55 pints? In the UK, the pint (as used, I assume for beer) is 568ml. So assuming that 'pint' means the drink commonly called that over here and assuming beer has a density similar to water [1] then 44 pints is very close. [1] No jokes about making love in a canoe, please. More seriously, and ignoring things like '25 bags of sugar', what about the sort of weights used by those misguided people who do not get their exercise from lifting PDP's into racks? -tony
RE: Saved DEC kit
Those are "imperial pints", in the US a pint is 16 fluid onces so nearer to 464 (I think) grams... > -Original Message- > From: cctalk [mailto:cctalk-boun...@classiccmp.org] On Behalf Of tony duell > Sent: 05 August 2015 18:43 > To: General Discussion: On-Topic and Off-Topic Posts > > Subject: RE: Saved DEC kit > > > > Hmm.. 55 pints? > > In the UK, the pint (as used, I assume for beer) is 568ml. So assuming that > 'pint' means the drink commonly called that over here and assuming beer has > a density similar to water [1] then 44 pints is very close. > > [1] No jokes about making love in a canoe, please. > > More seriously, and ignoring things like '25 bags of sugar', what about the > sort of weights used by those misguided people who do not get their > exercise from lifting PDP's into racks? > > -tony
RE: Unidentified chip
> > This all assumes it is a TTL and not an ECL or even > and analog chip, such as an opamp. Or a resistor network, diode network, transistor array, programmed PROM, microcontroller, etc, etc, etc. As a total aside, on some HP boards there is a 16 pin DIL package with the part number 1260-0339. Any ideas what that chip is? -tony
RE: Unidentified chip
Tony wrote... - As a total aside, on some HP boards there is a 16 pin DIL package with the part number 1260-0339. Any ideas what that chip is? - Is it on any boards related to the HP1000 or 21MX computers? If so... what board? J
RE: Unidentified chip
> > As a total aside, on some HP boards there is a 16 pin DIL package with the > > part number 1260-0339. > > Any ideas what that chip is? > Is it on any boards related to the HP1000 or 21MX computers? If so... what > board? I doubt it, but it might me. I first came across it on the test board for the HP59405 (HPIB for the HP9830). I know what it is, I wondered if others had come across it. -tony
Re: Saved DEC kit
On 05/08/2015 18:43, "tony duell" wrote: > More seriously, and ignoring things like '25 bags of sugar', what about the > sort of weights used by > those misguided people who do not get their exercise from lifting PDP's into > racks? Surprisingly none of my weightlifting mates can muster 25kg. I like the idea of a 25kg bag of dog food though, I know somone who works at a pet food supplier... -- Adrian/Witchy Binary Dinosaurs creator/curator Www.binarydinosaurs.co.uk - the UK's biggest private home computer collection?
RE: Saved DEC kit
> Surprisingly none of my weightlifting mates can muster 25kg. I like the idea I doesn't have to be one mass, does it? Couldn't you pile up 5 off 5kg weights? > of a 25kg bag of dog food though, I know somone who works at a pet food > supplier... Cement is often sold in 25kg bags now. At one time they were 50kg until some H&S guy decided that was too heavy to carry. So now you see builders carrying 2 off 25kg sacks instead. Go figure. -tony
RE: Saved DEC kit
> Those are "imperial pints", in the US a pint is 16 fluid onces so nearer to > 464 (I think) grams... Sure, I've got it as 473ml or so. But the OP was from the UK, so presumbly uses imperial pints. -tony
RE: Saved DEC kit
Hmm.. 55 pints? In the UK, the pint (as used, I assume for beer) is 568ml. So assuming that 'pint' means the drink commonly called that over here and assuming beer has a density similar to water [1] then 44 pints is very close. On Wed, 5 Aug 2015, Dave G4UGM wrote: Those are "imperial pints", in the US a pint is 16 fluid onces so nearer to 464 (I think) grams... "A pint is a pound, the world around." is no longer true. Not just the price of beer not being a pound per pint, but the unit of measure. And pluto is no longer a planet. Perhaps we should go get 44 pints of beer in UK and 55 pints of beer in USA. Once we drink them all, we'll have a better perspective on the problem. 25Kg is definitely in range for a complete microcomputer, or components of a minicomputer. Or minimal documentation for a system.
RE: Saved DEC kit
> > > Those are "imperial pints", in the US a pint is 16 fluid onces so nearer to > > 464 (I think) grams... > > "A pint is a pound, the world around." is no longer true. Not just the Over here we (used to) say 'A pint of water weighs a pound and a quarter' > price of beer not being a pound per pint, but the unit of measure. > And pluto is no longer a planet. No, he's a dog (could not resist). [...] > 25Kg is definitely in range for a complete microcomputer, or components of > a minicomputer. Or minimal documentation for a system. Its about half the weight of many minicomputer bits (I think an RK05 drive is about 50kg for example). -tony
Re: Saved DEC kit
On Aug 5, 2015, at 1:26 PM, tony duell wrote: (Fred wrote) >> ...And pluto is no longer a planet. Give us (New Horizons team) a couple years on that. I’ll guess that even the IAU is going to realize the error of their ways by the time all is said and done. > No, he's a dog (could not resist). :-) I have heard a lot of ballyhoo about Pluto disovered by Americans, first explored by American spacecraft, etc. etc. Oddly, not as much about its being named by a Briton (Venetia Phair, nee Burney). FWIW, I was thinking about the (apparently mythical) pound-weight pint. And aware the approximation wasn’t good even to three significant figures, but I also guessed that after disposing of the test mass, nobody would care much about that third significant figure (as Fred points out)! - Mark
Re: Saved DEC kit
On 05/08/2015 19:10, "tony duell" wrote: >> Surprisingly none of my weightlifting mates can muster 25kg. I like the idea > > I doesn't have to be one mass, does it? Couldn't you pile up 5 off 5kg > weights? Nope, biggest mass was 20kg. You'd also think that with a warehouse full of Proliants and Procurve switches I'd be able to amass 25kg easily, but no. Dog food is still winning :) -- Adrian/Witchy Binary Dinosaurs creator/curator Www.binarydinosaurs.co.uk - the UK's biggest private home computer collection?
OT RE: Saved DEC kit
Tony wrote (re: 25kg)... Its about half the weight of many minicomputer bits (I think an RK05 drive is about 50kg for example). I cry DEC-bias, using an RK05 as your UOM ;) For HP, a bare 7906 drive is 75kg (165#), and with controller, power supply, and desk side rack that only holds the one drive - 154kg (340#). A 7970 is 59kg (130#). A bare 2113 cpu is 30kg (65#). Funny how I have those weights right at the top of my head ;) So I'd say that 25kg is more like 1/3 of many minicomputer bits *grin* J
