test-drb

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101090 discussions

by robert.jarratt＠ntlworld.com

I am looking to test the power supply board of my VT101 before connecting it all up and switching it on. Reading to the Pocket Service Manual it seems to suggest that you can check the outputs of the power supply board with the terminal controller board and the video monitor board both disconnected. This would mean no load on the power supply. Does this seem wise? Regards Rob

11 years, 6 months

Shipping antique computers

by jnc＠mercury.lcs.mit.edu

So, I've recently shipped an antique computer across-country (in the USA), and for those who need to do this, I can point out the shipper (well, technically, a broker - they work with a range of companies who actually do the work) which/whom I used: Shiphawk 805-335-2432 http://shiphawk.com Having learned (with me :-) a number of lessons about the potholes and pitfalls of shipping antique computers, they should be pretty well up to speed if someone else needs to do some shipping of same. Key point: shipping of largish things is much cheaper if the item is palletized. There are two kinds of shippers: cargo/freight people (I forget the exact term), who only deal in palletized things, and so-called 'white glove' shippers, who will move anything (they usually do furniture, hence the name). I know palletization's not cheap, but you'll probably save more in shipping than you spend on the preparation. Noel

11 years, 6 months

Diablo disk unit

by alexandre.tabajara＠gmail.com

Can anyone shed a light on this? http://produto.mercadolivre.com.br/MLB-616158449-diablo-series-unidade-de-d… Thanks! Alexandre

11 years, 6 months

Subject: Knowledge Base

by marc.verdiell＠gmail.com

> I'm in. But instead of repair/restoration logs, I'd like to also contribute > with specific knowledge which I believe to be more searcheable and a better > contribution than just logs. Maybe we could have both (logs and knowledge base)? They serve different purposes. In my other group we have a mail list, a wiki for basic knowledge and a build logs threads in a Forum based package. The build logs are searchable. It works really well. The least frequently contributed to is the wiki, however it's the most helpful for new members. But it's a lot of work and makes things more complicated. Just food for thoughts, as I said the current mailing list is simple yet immensely useful, nothing wrong with it. And God bless bitsavers.

11 years, 6 months

Paper tape standard

by ard＠p850ug1.demon.co.uk

I hadn't spotted this before, and it may be of interest to some here : http://www.polyomino.org.uk/computer/ECMA-10/ It's the ECMA standard for paper tape. -tony

11 years, 6 months

Lanier Model 103 Word Processor

by phil＠viscom.net

All, Recently picked me up a new project ($0 projects are the best), a Lanier Model 103 word processing system, complete with printer, but void of any diskettes. I'm going to have a rummage around here at work, but it would appear that AES used hard-sectored 5.25" floppies in the machine. Apparently it'll boot the AES word processing suite, or alternatively CP/M (It's an 8080 based machine). Something had eaten(!) the ceramic suppression caps off the video card, so I replaced those and the tantalum beads for good measure. Now when I power it up I get a raster instead of a horizontal line. It's a bit stretched vertically, so I've got the video circuitry module out to redo the electrolytics in that next. Unfortunately none of the adjustments on the board are marked as to their function. I'm going to take a few guesses as to what's what, and experiment a little. I need to get me a hex tool for what I'm guessing is the width coil. There are 2 adjustable inductors and 4 variable resistors. A question- being as I currently do not have any discs for it, does anyone: 1) Know what this should display if you power it up without a floppy in? (If anything at all, would be useful to see if the thing even has a sane heartbeat in some fashion). 2) Have a service manual for one? 3) Know of a source of discs (either AES, copies, or even just CP/M)? I know 3 is a hugely long shot. It's not a badly built machine, and it would be nice to get repaired and be able to use it to write things on. --Phil

11 years, 6 months

Convergent NGEN storage hardware manuals

by aek＠bitsavers.org

http://bitsavers.org/pdf/convergent/ngen/hardware uploaded yesterday This is the first time that I've come across any real hardware documentation on the NGEN. It's already helped the guy working on the simulation in MESS.

11 years, 6 months

Updated Spacewar for the PDP-8/I, 8/E, etc....

by lbickley＠bickleywest.com

I just updated D.E. Wrege's Spacewar as follows: 1. Correctly supports slow monitors attached to a VC8/E interface by correcting mistakes made in the VC8/E driver code. The code now follows DEC's recommended method of waiting on the VC8/E. 2. Starts up with spaceships (as opposed to UFO's) per the original Spacewar! by Steve Russell. 3. Now supports the DK8-EC Crystal Clock Items 1 & 2 were released by me previously - but support for the DK8-EC is brand new. The new source and listing can be picked up via anonymous FTP to bickleywest.com and the pdp8_spcwar directory. Most browsers (not IE) will support this: ftp://bickleywest.com/pdp8_spcwar/ Cheers, Lyle -- Bickley Consulting West Inc. http://bickleywest.com "Black holes are where God is dividing by zero"

11 years, 6 months

HP Interex

by jwest＠classiccmp.org

I had posted to the list a while back that I had saved the HP/Interex and HP1000 CSL site before it went dark and put them up on the classiccmp server. Just got an email from the folks in the HP/DSD alumni group that they are enjoying that content being available again. That REALLY makes me feel good J WOOHOO! Along those lines, the copy of the Interex/CSL that I saved originally included not just the files, but also the html and jpg that made up the site itself. Over years, I lost the html and jpg files. Not a huge concern as the data files that the site served up are all present. But.. If anyone happens to have the .html, .jpg, etc files (and if it doesn't infringe) I'd be happy to add them back so it has the original "look & feel". J

11 years, 6 months

Tabajara Labs working again

by alexandre.tabajara＠gmail.com

So, the site is back :) I'd like to Thank Jay West for the kind offer of space for my site. Saved my bacon! Hope you all can enjoy www.tabalabs.com.br - it is mostly in portuguese, but google translator is your friend, and the pics are nice :) Also, there are lots of brazilian hardware pictured there, for the curious Greetings from Brazil! Alexandre Souza --- Enviado do meu Apple IIGS (pq eu sou chique) Meu site: http://www.tabalabs.com.br Meu blog: http://tabajara-labs.blogspot.com

11 years, 6 months

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