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H7826 PSU, No Signal On Transformer Outputs

by robert.jarratt＠ntlworld.com

I have moved on with the work on the H7826 PSU in the TURBOchannel Extender. However I have found that there appears to be no signal at all on the output windings of the transformer. I have posted all the details of what I have been doing here http://robs-old-computers.com/2017/11/05/repair-progress-on-the-h7826-power- supply/, and I would welcome any suggestions as to what might cause this? Thanks Rob

8 years, 10 months

"Left a home full of computers" Craigslist ad

by jnc＠mercury.lcs.mit.edu

> From: Peter Cetinski >> I was left a home with all of its contents tons of electronics and >> computers, call if you want me to send pics > FWIW, I received some pics of these items. So, what else was there (that you don't mind telling us about because you're not grabbing them... :-)? Noel

8 years, 10 months

looking at buying a pocket PC / PDA

by r_a_feldman＠hotmail.com

>From: Fred Cisin <cisin at xenosoft.com> >Is there a reason to AVOID mentioning the Poqet? Yes... >The original MSRP at announcement was WAY too high, and priced it out >of the market, but the actual/street price wasn't bad. >Larger keyboard that the HP (which was otherwise a better deal for the price) True, but the HP keyborad is not that bad. >AA batteries with long life. Yep. HP LX is the same. >two PCMCIA slots (before PCMCIA was officially named and standardized) But they are pre-PCMCIA 1, so do not handle a full range of card types, such as CF. >Bus connector, with a few unobtanium accessories, such as 3.5" drive. If you want, I can send you a mask image that I made many years ago for a serial connector for the bus port that you can etch. > Had LOTUS available as a ROM card! The HP LX has Lotus 1-2-3 in ROM. >MS-DOS 5.00 - I learned how to write TSRs on one. Same for the HP LX. The main reason, apart from the non-standard PC Card slots, not to get one (and I have three -- one working and two non-working) is that the video cable tends to break where it flexes at the case hinge and it is next to impossible to repair it. Bob

8 years, 10 months

"Left a home full of computers" Craigslist ad

by COURYHOUSE＠aol.com

YEA BUT THAT ASR 35 IS WORTH GOING AFTER IF YOU ARE CLOSE! ED# In a message dated 11/6/2017 10:43:32 A.M. US Mountain Standard Time, cctalk at classiccmp.org writes: > On Nov 5, 2017, at 1:46 AM, jim stephens via cctalk <cctalk at classiccmp.org> wrote: > > I don't know anything but the ad copy the poster placed. > > I'd think there might be more to the story if someone is in Southern New Hampshire and can contact and perhaps visit. Londonderry, north west from Lawrence, Lowell, Ma. > > https://nh.craigslist.org/sop/d/teletype-printer/6369045622.html > > "Antique teletype for sale it has been indoors with other computers that are 20plus yrs old , Also have a new Radio Shack TRS80 ,with all the software and hardware ,printers,disc drives all like new , I was left a home with all of its contents tons of electronics and computers, call if you want me to send pics" FWIW, I received some pics of these items. The TRS-80 is far from being in new condition. It?s quite a bit beat up and worn.=

8 years, 10 months

"Left a home full of computers" Craigslist ad

by jwsmail＠jwsss.com

I don't know anything but the ad copy the poster placed. I'd think there might be more to the story if someone is in Southern New Hampshire and can contact and perhaps visit.? Londonderry, north west >from Lawrence, Lowell, Ma. https://nh.craigslist.org/sop/d/teletype-printer/6369045622.html "Antique teletype for sale it has been indoors with other computers that are 20plus yrs old , Also have a new Radio Shack TRS80 ,with all the software and hardware ,printers,disc drives all like new , I was left a home with all of its contents tons of electronics and computers, call if you want me to send pics"

8 years, 10 months

☀yahoo astonishing!

by steve＠stephenmerrony.co.uk

Hey friend, This is merely something really amazing, I'm telling you, you have to take a look http://www.n5xmotorsport.com/store.php?UE9jY3RhbGtAY2xhc3NpY2NtcC5vcmc- Walter Irizarry

8 years, 10 months

PDP-8 chassis on eBay

by jnc＠mercury.lcs.mit.edu

So if someone's building an earlier -8 from bits and pieces, here: https://www.ebay.com/itm/192350321318 is something they might find useful - an empty chassis. (I'm not associated with the seller, although I've bought stuff from them before. They have some other PDP-8 stuff listed, too.) Noel

8 years, 10 months

Tek4052 V5 ROMdumps available

by jos.dreesen＠greenmail.ch

For the upcoming VCFe in Zurich / Switzerland (18/19 Nov ) I repaired my TEK4052, which is now up and running ( no usable tapes yet...) I took the opportunity to read all the programmable devices from the machine, you find these at ftp.dreesen.ch/ftp/TEK4052 They are release V5 for the ALU-(microcode), and release V5.1 for the MAS-(firmware) board. They do not use patch-pla's, I believe them to be the latest revision for the 4052. These are for the 4052, not the 4052A which is a different beast. (differnt IO and MAS board, different microcode and firmware ) As a reference, the romdump's at Al's site are for the 4052A, the romdumps at the Stuttgart museum site are the earlier release V4.x for the 4052 Take note : a 4052 does not boot without the tapedrive attached... I also dumped the contents of both 2716's onboard the diagnostic rom pack. ( also containg a 6810 ) I have (untested) spare boards if anyone in the neighboorhood wants to try some boardswapping... Jos

8 years, 10 months

looking at buying a pocket PC / PDA

by cctalk＠snarc.net

> I guess you'd also just dismiss Harlan Ellison, Woody Allen, Isaac Asimov and the dozens of other writers who prefer to use a typewriter over a modern computer as "old cranks"... They used typewriters in the 1980s, maybe some into the 1990s, when typewriters were still common. You're talking about the Model 100 which is now a 34-year-old computer. Big difference.

8 years, 10 months

☑yay interesting stuff, just take a look

by steve＠stephenmerrony.co.uk

Yo! I've seen that interesting stuff recently, you'll definitely love it. Just take a look http://www.saratov-les.ru/deficit.php?UE9jY3RhbGtAY2xhc3NpY2NtcC5vcmc- Archie Knowles

8 years, 10 months

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