test-drb March 2014

test-drb@ccmp.vtda.org

175 participants
175 discussions

by info＠drukknop.nl

Hello all, got a scriber in my lap this week, but no userguide. can someone explain to me how to change the fontsize? also the lcd does not show any info, so i have no idea what the keypresses on functionkeys do. -- Met vriendelijke Groet, Simon Claessen drukknop.nl

10 years, 2 months

Computing Now! - august 1983 assembling J.L.S board

by enrico.lazzerini＠email.it

I'm looking for " Computing Now! - august 1983 assembling J.L.S board ". Enrico

10 years, 2 months

4004 Development System

by steve＠tronola.com

Hi Kyle, >Does anyone have any interest in a modern 4004 or 4040 development system? >I posted to the Vintage Computer Forum but didn't get a lot of interest >there. It would be similar in functionality to an Intel Intellec 4, but >will be smaller and will use a keypad with a hex display. > >I've got some rudimentary plans thus far, but don't really have an interest >in continuing if there's not a community interest. --- I for one, am certainly interested! With the 4004 being arguably the first microprocessor, it is truly the grand-daddy of personal computing! Steve

10 years, 2 months

Needed: Tandy portable floppy drive diskette.

by tosteve＠yahoo.com

Tandy made a battery powered portable floppy disk drive for their model 100, 102, and 200 portable computer systems, called the PDD and PDD2. I need the Utility "boot disk" for the PDD - the first version - not the PDD2 second version. If anyone can send me a disk or even an image, I would appreciate it. Thanks- Steve. Sent from iPhone.

10 years, 2 months

PDP-8a Restoration/RL01 issues

by anders＠abc80.net

> Date: Wed, 12 Mar 2014 13:09:30 -0400 > From: allison <ajp166 at verizon.net> > To: cctech at classiccmp.org > Subject: Re: PDP-8a Restoration/RL01 issues > Message-ID: <532094CA.2020704 at verizon.net> > Content-Type: text/plain; charset=ISO-8859-1 > > On 03/12/2014 12:22 PM, Ethan Dicks wrote:v >> On Tue, Mar 11, 2014 at 7:03 AM, <anders at abc80.net> wrote: >>> I have traced the problem back to the RL8A. The 8,2MHz oscillator is not >>> working... unfortunately I was not >>> able to find a though hole mounted one, just a SMD part... >> I did a quick search and didn't see an obvious source of through-hole >> oscillators at the right frequency (and it is a bit unusual), even >> from US vendors. >> >> One solution could be to mount an SMD oscillator in a 14-pin DIP >> machined-pin socket frame (with 10 pins removed) either on a small PCB >> or with flying leads and a spot of glue. >> >> -ethan >> > Most of the SMD parts are 3.3v.. > There are though hole out there, likely you will need a programable part > to get 8.2mhz. Check Silicon Labs for parts, digikey and mouser. > > Allison > I bought this one on ebay (I'm still waiting for it to arrive): http://www.ebay.com/itm/250975975234 Datasheet: http://pdf1.alldatasheet.com/datasheet-pdf/view/161645/EPSONTOYOCOM/TCO-711… I'm not very good at Japanese(?), but it seams like it is a 5V component with TTL compatible outputs. I have drawn a small adapter PCB that I will try to make this weekend. I'll post pictures of it if anybody is interested. /Anders

10 years, 2 months

4004 Development System

by gkaufman＠the-planet.org

I would have an interest! I have an original Intellec 4, and have just constructed Martin Eberhard's superb 1702A EPROM programmer so I can backup the roms. I've never powered up the unit, but would be happy to provide detailed pictures etc. - Gary

10 years, 2 months

Source for SIDs

by seefriek＠gmail.com

Can anyone recommend a reliable source of Commodore SID audio chips? I'm not hugely picky about the version. Not afraid of the cost of a pair on eBay, but the sellers all look relatively sketchy. KJ

10 years, 2 months

4004 Development System

by seefriek＠gmail.com

From: dwight <dkelvey at hotmail.com> > What is that controller chip on the early Winchester > controller boards. That was a 64 pin part. > G??X300 or something. Scientic Microsystems (later Signetics) 8X300. It was 50-pin.

10 years, 2 months

FS: Commodore SX-64 Portable and other C64 items for Sale

by florit＠gmail.com

Hi cctalkers, Up for offer is a slightly worn but completely working Commodore SX 64 Executive 'Portable'. This thing is really neat, the drive and monitor are integrated, making it luggable. I have fixed the keyboard membrane that is a typical problem with these, the keys all work. Floppy drive works, I'll include a stack of 5 1/4 floppies with it, one is the xmas demo (it was a hit here at my office, kinda like a vintage digital snow globe) and the Uridium video game. I'll also include the SX64 JiffyDOS rom upgrades that I never got around to installing (~$40 upgrade). This will speed up the drive access when installed. Also have the original manual and some other stuff that'll go in the lot. Asking $250, I'm willing to ship, buyer pays shipping, figure $30-$40 for shipping, I will pack this up and get you a shipping quote before paying. Paypal, money order, or personal check accepted (I will wait to ship until check clears). You can see photos of the C64-SX on my craigslist post here: http://sfbay.craigslist.org/sby/sys/4371664679.html I've also some other items: - Original Commodore C2N Cassette recorder, I think only for use w/ C64, has special cable interface. Untested, case could use a good cleaning. $5+shipping. - Commodore 1541 Floppy Drive, the disc eject mechanism is not working, but was able to write floppies on this with a PC some time ago (3 years), and the floppies read on the C64sx mentioned above. $5+shipping, this thing is solid so may not be a cheap ship. - 64NIC+ from the Cincinnati Commodore Comp Club in a clear cartridge case. This was a lot of fun, getting the Commodore onto the Internet and doing things like Twitter. Working, will include some printouts on how to use and network utilities floppy from 4 years ago (Twitter client no longer works due to protocol changes and I haven't looked to get newer versions of the network tools. $50 obo+shipping. If you're in the South SF Bay Area, we can coordinate to check the stuff out and pick up in person. I love this stuff, but priorities have changed, so I'm hoping this goes onto other folks that can also appreciate it. Please email me if you have questions or would like pictures, thanks! -- Louis Florit - :(){ :|:& };:

10 years, 2 months

Convert PDP-11 RK05 disk pack to PDP8

by cramcram＠gmail.com

I've seen rumours that you can convert a PDP-11 RK05 disk into a PDP-8 style by swapping out the sector hub on the bottom. Is this: 1. True, I've done it, or, 2 It oughta work, or, 3 No way. Thanks, Marc

10 years, 2 months

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test-drb March 2014