test-drb

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101090 discussions

Found an EEPROM programmer that works with Linux

by dgriffi＠cs.csubak.edu

I just thought I'd let everyone know, for the record, that I found an inexpensive USB-interfaced EEPROM programmer that works with Linux. This is the Model TL866CS which is often sold as "MiniPro Programmer". These can be found on Ebay for around $50. It feels substantial and solidly built. The software I used to control it can be found at https://github.com/vdudouyt/minipro. The software has some nits[1] but it does work. There's a QT-based front-end at https://github.com/wd5gnr/qtl866. That one has a potential showstopper bug in that it does not surround the device name with quotes when calling the minipro software. So, for those of you (like me) who have posted from time to time looking for a chipburner that works with Linux, here's a solution. [1] udev rules aren't installed in the right place. No option to emit a list of supported devices. -- David Griffith dgriffi at cs.csubak.edu A: Because it fouls the order in which people normally read text. Q: Why is top-posting such a bad thing? A: Top-posting. Q: What is the most annoying thing in e-mail?

11 years, 7 months

Motorola Envoy PDA?

by evan＠snarc.net

> Anyone out there interested in a Motorola Envoy of the MagicCap era of personal devices, circa 1994? Interested as in buying, or interested as in a valid cctalk discussion subject? No to the former. Yes to the latter.

11 years, 7 months

Motorola Envoy PDA?

by jfoust＠threedee.com

Anyone out there interested in a Motorola Envoy of the MagicCap era of personal devices, circa 1994? - John

11 years, 7 months

Anyone have a spare DECstation in europe for a developer?

by Arno_1983＠gmx.de

OK, may be a bit late to chime in but I didn't have time to go through my stuff and look it up earlier, so here goes: A DECstation 5000/200 with PMAG-B Framebuffer is available in southern Germany. I myself was given that machine several years ago and didn't get to try it out yet. Unfortunately I don't have the knowledge and resources available to put the machine online so it would have to be physically relocated. I would prefer putting it on an indefinite loan but might also be persuaded to trade or outright donate to this worthwile cause. Feel free to contact me if you think it might be of any help. Yours sincerely, Arno Kletzander > On 29 December 2014 at 00:31, emanuel stiebler <emu at e-bbes.com> wrote: > > > On 2014-12-28 14:56, David Brownlee wrote: > > >> > > >> Bj?rn Johannesson has been working on the VAX framebuffer and keyboard > > >> code in NetBSD to get X running on the LCG equipped machines (like the > > >> VAXstation 4000/VLC and 4000/60). > > >> > > >> He's expressed an interest in looking at some issues in the DECstation > > >> X11 code, but doesn't have access to an appropriate machine. > > > > > > which DECstation, and which Graphic adapter? > > > There where quite a few different ones on the TURBOChannel, > > > from the very dumb frame buffer to the 3d ones ... > > > > My initial thoughts would be a nice little 3100 or possibly a 2100 > > with the simple framebuffer, but obviously the goal would be to > > support whatever is available. > > > > At least VS3100 M38 and M76 don't work with NetBSD, we realized this approx > a year before. Martin got a machine from me to investigate further, but I > think nothing has happened in this reagard since then. > > Regards, > > 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 > > > > ------------------------------ > > Message: 6 > Date: Wed, 31 Dec 2014 11:47:55 +0100 > From: Johnny Billquist <bqt at update.uu.se> > To: cctalk at classiccmp.org > Subject: Re: Anyone have a spare DECstation in europe for a developer? > Message-ID: <54A3D45B.4080307 at update.uu.se> > Content-Type: text/plain; charset=utf-8; format=flowed > > On 2014-12-31 11:40, Holm Tiffe wrote: > > David Brownlee wrote: > > > >> On 29 December 2014 at 00:31, emanuel stiebler <emu at e-bbes.com> wrote: > >>> On 2014-12-28 14:56, David Brownlee wrote: > >>>> > >>>> Bj?rn Johannesson has been working on the VAX framebuffer and keyboard > >>>> code in NetBSD to get X running on the LCG equipped machines (like the > >>>> VAXstation 4000/VLC and 4000/60). > >>>> > >>>> He's expressed an interest in looking at some issues in the DECstation > >>>> X11 code, but doesn't have access to an appropriate machine. > >>> > >>> which DECstation, and which Graphic adapter? > >>> There where quite a few different ones on the TURBOChannel, > >>> from the very dumb frame buffer to the 3d ones ... > >> > >> My initial thoughts would be a nice little 3100 or possibly a 2100 > >> with the simple framebuffer, but obviously the goal would be to > >> support whatever is available. > >> > > > > At least VS3100 M38 and M76 don't work with NetBSD, we realized this approx > > a year before. Martin got a machine from me to investigate further, but I > > think nothing has happened in this reagard since then. > > Uh... Holm... He was talking about a DECstation 2100 or 3100 here... Not > a VAXstation. :-) > > Johnny > > -- > Johnny Billquist || "I'm on a bus > || on a psychedelic trip > email: bqt at softjar.se || Reading murder books > pdp is alive! || tryin' to stay hip" - B. Idol > > > End of cctalk Digest, Vol 2, Issue 31 > ************************************* >

11 years, 7 months

Manuals Plus going out of business...

by jnc＠mercury.lcs.mit.edu

> From: Lyle Bickley > I got a letter a couple of weeks ago that "Manuals Plus" .. is going out > of business. I verified that by phone yesterday. > They are having a "make me an offer" sale ... Interesting that nothing is on their Web site about it. Maybe they are prioritizing their past customers? Guess I'll have to call and see if I can make an offer on a few things... Noel

11 years, 7 months

Reverse engineering vintage PCBs

by bobvines00＠gmail.com

On Fri, 9 Jan 2015 06:06:02 +0000, Tony Duell wrote: > I mentioned using a good continuity tracer that is not fooled by diodes. This > will handle any parasitic junctions in ICs, etc. If you get to know the instrument > you will not have problems from false positives. > > -tony Tony, What continuity tracer do you use? Can you recommend a "good continuity tracer that is not fooled by diodes" that can be built/purchased for not a lot of money? Thanks, Bob

11 years, 7 months

Broken H724 power supply from PDP-8/e

by michael.99.thompson＠gmail.com

> > From: Al Kossow <aek at bitsavers.org> > To: cctech at classiccmp.org > Subject: Re: Broken H724 power supply from PDP-8/e > > On 1/7/15 6:24 PM, Michael Thompson wrote: > > The H724 power supply in my PDP-8/e works OK for about 5 seconds and then > > the +5V output goes to about 3.0V. If I leave it on for a few more > seconds > > it will blow the 20A fuse for the +5V output. > > > > sounds like something is firing the crowbar (Q207) > Thanks Al and Marco. I saw Q207 when I inspected the power supply and wondered what that giant diode was for. I also saw it in the schematic and was surprised to see that the diode installed backwards. Now I see that it is an SCR, not a diode. R29 is easy to get to, so I will try raising the crowbar voltage a just little. It is also possible that the regulation of the +5V is not working correctly and the crowbar should be firing. -- Michael Thompson

11 years, 7 months

Proud owner of a SDK-86, now what

by rdawson16＠hotmail.com

I got this off of the auction site, listed as untested. It came in today, looks in beautiful condition, and powers up just fine, with the 86 1.1 message on the display. I have the 'Microcomputer Experiments With the SDK-86, Leventhal' book headed my way. I have not been able to find much else - any suggestions for fun projects with this? Randy

11 years, 7 months

Brazilian computer dissected: CP200

by alexandre.tabajara＠gmail.com

Just in case someone is curious, there is another brazilian computer dissected, the CP200 (ZX81 clone) from Prologica www.tabalabs.com.br Greetings from Brazil! Alexandre

11 years, 7 months

Manuals Plus going out of business...

by lbickley＠bickleywest.com

I got a letter a couple of weeks ago that "Manuals Plus" http://www.manualsplus.com/ is going out of business. I verified that by phone yesterday. They are having a "make me an offer" sale - and I understand they are being swamped with orders. If you need/want original service/op manuals for test equipment, etc., now is the time to buy. I've bought a lot of manuals from Manuals Plus - and I'm really sorry to see them go. Unfortunately, the owner of their building is raising their rent next month - and they can't afford to stay - or move... Lyle -- Bickley Consulting West Inc. http://bickleywest.com "Black holes are where God is dividing by zero"

11 years, 7 months

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