test-drb September 2013

test-drb@ccmp.vtda.org

168 participants
203 discussions

by useddec＠gmail.com

Here is a partial list of boards I have pulled and are ready to ship. The non -dec and PDP8 will follow at some point, as will the q-bus boards. I know I have M3106s, M3107s, and M8043s (DLV11-Js) handy. Feel free to ask questions and make offers. Shipping within the US is $10 for up to 10 quad boards, $15 for up to 10 hex quad boards, and $20 for up to 10 F, L, or M series boards. Shipping outside the US can be worked out. shipping from 61853. Thanks, Paul F1002 X 2 F1003 F1004 F1005 F1006 F1007 X 2 F1011 X 2 F1013 F1021 X 6 L0007 L0008 L0011 L0016 L0101 X 4 L0102 L0105 X 2 QUAD BOARDS M3104 X 13 M7164 X 9 (1 w/ KDA50 bulkhead) M7165 X 10 M7168 X 12 M7169 X 6 M7196 X 2 M7251 X 12 M7258 X 4 M7264 X 9 M7454 X 4 M7547 X 1 M7602 X 3 M7606 X 1 M7608 X 1 M7620 X 5 M7621 X 10 M7706 M7800 X 1 M7810 X 3 M7822 X 9 M7856 X 6 M7950 X 1 M7957 X 27 M8003 X 1 M8012 X 7 M8012 ? YA X 13 M8013 X 5 M8014 X 5 M8053 X 2 M8061 X 5 M8064 X 1 M8067 X 22 M8081 X3 M8151 X 1 M8152 X 1 M8188 X 4 M8190 X 2 M8290 X 2 M8256 X 1 M8639 X 2 M8639 ? YA X 4 M8639 ? YB X 6 M8658 ? YA X 1 M8901 X 1 M8901 ? YC X 4 M8902 X 2 M8902 ? YA M8904 X 2 M8904 ? YA M8905 X 2 M8905 ? YA M8905 ? YB M8906 X 4 M8951 X 1 M8953 X 3 M8955 X 1 M8957 X 1` M8960 X 1 M9060-YA X 3 Hex boards G066 1 M3105 DHU11 2 M3110 10 M3111 10 M7094 11 M7095 6 M7096 6 M7097 6 M7098 2 M7134 5 M7161 ? YA 1 M7289 1 M7293 1 M7294 1 M7295 1 M7485 1 M7486-YA 1 M7486 2 M7521 Delua 1 M7684 1 M7762 2 M7772 4 M7773 4 M7774 4 M7775 2 M7776 3 M7786 3 M7787 2 M7792 12 M7793 12 M7814 DZ11 3 M7819 45 M7847 20 M7867 DUP11 ? DA 7 M7872 4 M7873 1 M7874 5 M7875 3 M7876 3 M7877 3 M7900 1 M7901 1 M7902 2 M7903 3 M7904 2 M7912 1 M7982 2 M7983 4 M7991 2 M7992 2 M7993 3 M7994 2 M7995 2 M7996 2 M7997 2 M8103 1 M8105 1 M8107 1 M8112 1 M8113 1 M8115 1 M8126 1 M8147 2 M8148 3 M8149 2 M8150 2 M8191 1 M8202 ? YE 2 M8203 7 M8204 5 M8206 1 M8207-RA 6 M8396 10 M8398 7 M8722 11 M8728 5 M8743 20 M89031 1 M8903 ? YA 2 M8909 2 M8909 ? YA 32 M8910 1 M8914 2 M8916 1 M8933 3

12 years, 1 month

DEC module lists for VAXen (Re: DEC boards)

by ethan.dicks＠gmail.com

On Mon, Sep 9, 2013 at 4:19 PM, Ethan Dicks <ethan.dicks at gmail.com> wrote: > Timing is everything. I just finished digesting Megan Gentry's and Doug > Jones' module lists, normalizing the columns, and importing it into a > secondary tab on a spreadsheet so that you can use VLOOKUP to > dump any list of boards by handle number in the A-column and it fills > out option name (KK8E, MS11...), bus type (if known), width (if known) > and any notes about the item (taken from the module lists). I'd like to round out my spreadsheet but the best lists are of PDP-8 and PDP-11 CPU, memory, and device controller boards. VAX CPU boards, memory (11/750 and 11/730 nothwithstanding because of their connection to the PDP-11/70), and CMI/MASSBUS/VAXBI/NMI, etc, aren't as thoroughly documented. Does anyone have a good pointer to such lists they'd like to share? One can read a lot of handbooks to pick out a vast number of handle numbers and option names, but it's so much easier to feed an existing list through a text filter to append to the other, excellent-in-their-own-right lists. Thanks, -ethan

12 years, 1 month

For Trade: Original Apple II System for NeXT Cube

by slandon110＠gmail.com

I have a very nice Original Apple II System With matching 9inch RCA Monitor Disk II Drive ThunderClock Plus Card 16k Language Card. Applesoft ROMS Will trade for a NeXT Cube System. Will be at VCFMW/ECCC with the system Thanks Steve

12 years, 1 month

Wanted: DEC VT11 with VR14/VR17

by legalize＠xmission.com

I'm looking for a DEC VT11 and a corresponding VR14 or VR17 monitor. For those who are not familiar with them, a VT11 is a vector refresh display processor for a UNIBUS PDP-11. It consists of three hex-height modules M7013, M7014 YA and A320, a custom VT11 backplane for these modules, an associated VR14 or VR17 monitor and cables from the modules to the monitor. VT11 Graphic Display Processor <http://manx.classiccmp.org/details.php/1,3136> VR14/VR17 CRT Display Monitor User's Manual: <http://manx.classiccmp.org/details.php/1,3271> -- "The Direct3D Graphics Pipeline" free book <http://tinyurl.com/d3d-pipeline> The Computer Graphics Museum <http://computergraphicsmuseum.org> The Terminals Wiki <http://terminals.classiccmp.org> Legalize Adulthood! (my blog) <http://legalizeadulthood.wordpress.com>

12 years, 1 month

Vax software and diagnostics

by sales＠elecplus.com

http://iamvirtual.ca/VAX11/VAX-11-software.html has a long list of diagnostic and system software. Cindy Croxton _____ No virus found in this message. Checked by AVG - www.avg.com Version: 2013.0.3392 / Virus Database: 3222/6648 - Release Date: 09/08/13

12 years, 1 month

Cash Register Drawer Wanted...

by brain＠jbrain.com

This is not a sales pitch, I promise. My daughter is going to be selling PCB earrings at the upcoming ECCC/VCFMW show, as she did last year. This year, she's asked how much a cash register would cost, so she could look "professional" (she's 9, it's cute, I know). So, I thought: I have a tiny CBM-compatible 2.5" printer sitting here doing nothing, a C64 or VIC is easy to pull off the shelf, wiring up a small LCD is no issue, and I have cartridge stock to make an autorun cart. But, I am lacking a cash drawer. I've looked online, but I'd rather not spend $50-100 on something that has marginal utility... Thus, I'm wondering if someone on list has an old beat up drawer (with a spring and solenoid) they'd be interested in offloading inexpensively or donating... Jim -- Jim Brain brain at jbrain.com www.jbrain.com

12 years, 1 month

Plugging again: HP 9807A IPC Integral PC on epay

by hp-fix＠xs4all.nl

After offering it on the list a few month ago, I place on epay now Item 370894321537 , I ship worldwide. -Rik Oh don't worry I keep one, but don't need two ;)

12 years, 1 month

Representing NeXT at VCFMW/ECCC- Bring out your hardware

by slandon110＠gmail.com

Bring out all your NeXT/OpenStep stuff to VCFMW Me and a few others are bringing out some systems and we plan to have a fully operational netinfo domain going at VCFMW. So it can be black hardware, white hardware, Anything that Runs NeXTstep/OpenStep or documetation, tshirts you name it. Lets have NeXT be the biggest display there this year.

12 years, 1 month

Zetaco SCZ3-2 for Data General

by shadoooo＠gmail.com

> Do you have a photo of the board? If it uses a fairly generic SCSI chipset > it might be possible to narrow it down from a photo of the board. Maybe a > chip collector "collected" it's CPU and/or EPROM(s)? Bruce Ray helped me alot! He sent me a copy of the manual. Missing microprocessors are 80186... I will dig around for components with correct package... Andrea

12 years, 1 month

Soft Sectoring a RK05

by shadoooo＠gmail.com

> I think perhaps that you do not understand how a PLL really operates. > In every case that I've ever worked with, the PLL center frequency is a > multiple of the reference. (That, for example, is why having a 3GHz CPU > clock on your personal computer that the reference frequency is always > much lower than that 3GHz. well, this is not completely correct... basic PLL does simple integer multiplication, but higher complexity PLLs could include dividers with variable module, or even more complex modern PLLs use a sort of "noise shaping" to achieve a frequency multiplication by N.M, where N is integer part, M is fractional part, often with a length of 16 or 24 bits... I'm not talking about post-dividers, the VCO really works at the fractional frequency. By the way, a quite simple PLL 4x with a post-divider x3 could do the job. PLL will try to keep aligned the edges of the reference signal with the edges of the regenerated signal; but not all the edges could be aligned at the same time, because the frequency ration is not integer. We have a situation like this, without a proper signal to reset the PLL counter always in the same disc position, PLL will align randomly in one of the following ways (number is a pulse, - is stable signal): original 12 sector: ---0---------------1---------------2---------------3---------------4---------------5---------------6--- case 1 16 sector (0, 3, 6, etc are aligned): ---0----------1-----------2-----------3-----------4-----------5-----------6-----------7----------8--- case 2 16 sector (1, 4, 7, etc are aligned): -------N-----------0----------1-----------2-----------3-----------4-----------5-----------6----------7--- case 3 16 sector (2, 5, 8, etc are aligned): ----------N-----------N-----------0----------1-----------2-----------3-----------4-----------5------ Of course the random choice of the pulse that will be aligned could let the regenerated sector position shift by 1/3 of 2/3 of the original 12-sector. > Slots in the hub ring. > There are actually 13 and 17, one extra midway between the 12'th and > 1'st for the index. Ah-haaa! THAT added pulse should be used to solve the phase alignment uncertain, thus starting to align always with the first sector! Beside the digital implementation using microprocessors, that would have an implicit problem of delay, cause by software latencies, I would prefer a true PLL implementation, with a VCO driven at 4N the reference signal, and a post-divider by 3N. As frequency of the pulses is quite low, a VCO working at higher frequency (always multiple of 4) could be preferable for component choice, and a bigger divider (correspondent multiple of 3) could reduce the amount of jitter and offer a faster lock time. The circuit could be simply realized using a 4046 CMOS as PLL/VCO and a couple of dividers like 4040, 4024. Andrea

12 years, 1 month

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test-drb September 2013