Start with this http://www.vcfed.org/forum/showthread.php?33684-Tek-4051-BASIC-Simulator Read the thread carefully, forget about the threads title/subject and you will get close to all the information you need On Mon, Oct 24, 2016 at 10:42 AM, Pete Lancashire <pete at petelancashire.com> wrote:

Thanks Pete. The 4051 is working perfectly so far, with a few examples I have typed in. I started a conversation with VintageTek (Dave Brown and Ed Sinclair) to see what they have. I looked at the 'Toaster' schematics here, it should be fairly easy for me to build this one up: http://bitsavers.trailing-edge.com/pdf/tektronix/405x/ Interesting, the source firmware is in the fiche directory, I have had some fun reading it, the comments are a hoot. Next on the list, I will get a Kraft joystick and build that up, its a simple op amp integrator circuit (the more you move the stick, the faster the voltages ramp to the 4051) thanks for anything you have, its a fun machine. Randy ________________________________ From: cctalk <cctalk-bounces at classiccmp.org> on behalf of Pete Lancashire <pete at petelancashire.com> Sent: Monday, October 24, 2016 10:42 AM To: General Discussion: On-Topic and Off-Topic Posts Subject: Re: Tek 40xx computer users The ROM cart your going to want to get never left Tek, it had the capacity to hold all the packs, another one is very high (for a 6800) performance graphics. To use multiple ROMs you will need a 4051 Toaster. That's what we called it. Can't remember if it was a product or not. I may have a couple original packs if I find them I'll extract the contents and put them on bitsavers On Mon, Oct 24, 2016 at 10:28 AM, Brad H < vintagecomputer at bettercomputing.net> wrote:

Mike Hass wrote regarding his treasure trove of 4051 stuff: Very cool stuff. Let's see some pictures posted of the Test Fixture front panel. I had heard of the existence of these, which essentially was a lights and switches front panel that allowed exam & deposit of memory, as well as single-stepping of the 6800 in the 4051. One thing I often wondered...would this work on a 4052? Would also love to see pix of the "GAS 6800". Could well be a prototype.... Seeing it, I may be able to confirm if it is. Any of the ROMpacks that you have that haven't already had their firmware dumped out, should be captured if at all possible and place up on BitSavers....hint, hint.

Hah ha, made you say never.... https://drive.google.com/file/d/0Bxd4qJinVzkNQVBDazFGdUZBLU0/view heh.... https://drive.google.com/drive/folders/0Bxd4qJinVzkNV3c4RElNYVh1VTg ;)

This was for Mike Hass, he was not in the email chain, and I do not have his address. But it' s a general shout out to the other Tek 40xx users out there... Randy ________________________________ From: cctalk <cctalk-bounces at classiccmp.org> on behalf of Randy Dawson via cctalk <cctalk at classiccmp.org> Sent: Saturday, January 6, 2018 9:54 PM To: General Discussion: On-Topic and Off-Topic Posts Subject: Re: Tek 40xx computer users Hi Gary, Well its been a year. Some news from here: Micheal Cranford finished his MAXIPACK and FASTGRAPHICS PACK, and the results are awesome. 50-100% increase in the graphics speed, and he put all the demos and games on the MAXIPACK. I 3D printed the plastic case for the PACKs and they look good. I would like to see if we can work together, to clone the ROMs out of the packs you have, or see if you are willing to sell duplicates you have. I really need a communications PACK, my 4051 did not have the comm port. I have no way to transfer data in and out, I was going to attempt it over GPIB, bit I did not get very far. What is new from your end? I think we are trying to organize a 405x users group, I am talking with a few other guys. Cheers, Randy ________________________________ From: cctalk <cctalk-bounces at classiccmp.org> on behalf of Mike Haas <dogaschesswarrior at gmail.com> Sent: Thursday, October 27, 2016 8:10 AM To: General Discussion: On-Topic and Off-Topic Posts Subject: Re: Tek 40xx computer users Congrats on your new Tek. My 4051 pile came from came indirectly from Gary Spence, who had inhouse involvement with the model. (can't locate his bio at the moment) Here's what I got... somewhere: 4051, 2x 4907 Dual 8" floppys, and the "System Test Fixture" front panel, a box of DC300 tapes "GAS 6800" - a Homebrew 4051 (maybe a prototype 4051 ???) and these paks: RS232 I/O compak dual port memorypack UNIBURN EPROM burner pack VIDEOFRAME digitizer GPIB Enhancement rompack RS232 Printer Interface Parallel Interface Rompack Switch Data Communications Interface 8k Rom pack Addressable Data Tracking backpack IC Analyzer Editor Pack Filemanager Pack Binary Program Loader Pack Signal Processor Pack Service Pack Pack extender board a few empty packs and several wired edges On Sun, Oct 23, 2016 at 10:15 PM, Randy Dawson <rdawson16 at hotmail.com> wrote: Log In or Sign Up to View<https://www.facebook.com/Thelma.Franco/videos/10154277153852670/> www.facebook.com See posts, photos and more on Facebook. Log In or Sign Up to View<https://www.facebook.com/Thelma.Franco/videos/10154277153852670/> Log In or Sign Up to View<https://www.facebook.com/Thelma.Franco/videos/10154277153852670/> www.facebook.com See posts, photos and more on Facebook. www.facebook.com<http://www.facebook.com> [https://www.facebook.com/images/fb_icon_325x325.png]<http://www.facebook… Facebook - Log In or Sign Up<http://www.facebook.com/> www.facebook.com Create an account or log into Facebook. Connect with friends, family and other people you know. Share photos and videos, send messages and get updates. See posts, photos and more on Facebook.

On 07.01.2018 07:01, Randy Dawson via cctalk wrote: There are a number of us over and the vcfed forum, someone just brought his 4052 back to live after countless years. I myself restored my 4052 a couple of months ago, a second one needs powersupply checkout and has an as yet undetermined problem in the analog board. I am in the process of recreating the 4052/4054 diagnostic pack. Give a shout if you need one, less than 7 parties at the moment..... I'd therefore be interested in the source code for the 3D printed cartridge case. This will need updates to accomodate the LED and switches. I myself would be interested in obtaining, or recreating, a suitable long term storage option for the 4052, i.e. floppy or even SD card. Then again, TekBasic is really bloody awful, maybe we should spend time on brining somre proper software top the system..... Jos