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I'd be interested in getting enough for 2 boards.
Matt Turner > Date: Sat, 7 Jun 2014 11:08:48 -0400 > From: t...@bonedaddy.net > To: n8vem...@googlegroups.com > Subject: Re: [N8VEM-S100:4014] Re: ALTAIR/IMSAI 8080 CPU replacement board & FP-Mini Front panel > > We could get the following prices if ordering higher multiples from > mouser: > > M2012TNW03-EC $3.10/100 $2.99/200 $2.77/500 > M2012TNW03-EG $3.10/100 $2.99/200 $2.77/500 > M2018TNW03-EC $3.90/100 $3.76/200 $3.49/500 > M2018TNW03-EG $3.90/100 $3.76/200 $3.49/500 > > NKK also has paddle toggles available in different colors as well. > > I'd be willing to purchase in quantity if we get enough interest. > > Todd > > > * Don Caprio <c...@uxpro.com> [140607 03:49]: > > Oh, Even better. Price is for Qty two and they come with mounting hardware. > > > > > > > > On Sat, Jun 7, 2014 at 12:45 AM, Don Caprio <c...@uxpro.com> wrote: > > > > > Yes Andrew those like like could work. We would also need the momentary on > > > as well. > > > > > > Last time I priced them: > > > > > > A Complete set: > > > 8 M2012TNW03-EC, On-NONE-ON RED $4.80 $38.40 $33.04 > > > 8 M2012TNW03-EG, ON-NONE-ON BLUE $4.80 $38.40 $33.04 > > > 2 M2018TNW03-EC, (ON)-OFF-(ON) RED $6.05 $12.10 > > > 3 M2018TNW03-EG, (ON)-OFF-(ON) BLUE $6.05 $18.15 > > > > > > > > > > > > On Fri, Jun 6, 2014 at 11:41 PM, Andrew Bingham <ab...@gmail.com> > > > wrote: > > > > > >> Don - would these work? If we didn't care so much about the color? > > >> > > >> > > >> http://www.electronicsurplus.com/Item/2111/JBT%20-%20Switch_%20rocker_%20SPDT-5A_%20Package%20of%202_%20-%203-532/ > > >> > > >> Andrew B > > >> > > >> > > >> On Friday, June 6, 2014 9:53:14 PM UTC-7, Don Caprio wrote: > > >> > > >>> Josh, Rich, and S-100 gang, > > >>> > > >>> The Imsai front panel S-100 (aka fp-mini) was stalled for quite some > > >>> time. Family, work and > > >>> remodel project left no spare time. > > >>> > > >>> Looks like we have new life on the project. Many, many thanks to Josh > > >>> who got one of prototype > > >>> boards and worked out the final bugs. Looks like The next prototype > > >>> should be our last before > > >>> production run. > > >>> > > >>> This board is a bit pricey due to the cost of the mini paddle switches. > > >>> A completed set of paddle > > >>> switches goes for ~ $125.00. My source for the toggles left the company > > >>> so I'm finding a new > > >>> contact and pricing. > > >>> > > >>> The FP-Mini and Josh's new 8080 board is going to make a fantastic, two > > >>> board complete system. > > >>> > > >>> I'm working with a local sheet metal fabricator on a mini-chassis based > > >>> around the fp-mini and the > > >>> S-100 8 slot mother board. I needed a chassis design for the next board > > >>> layout. We'll need to move > > >>> switches around and provide mounting holes on the PCB. Anyone who has > > >>> ideas or experience > > >>> creating a photo mask for the Plexiglas section drop me a line. It may > > >>> be as simple as printing a > > >>> transparency on a laser printer. > > >>> > > >>> Once I get a final price on the chassis I'll send out a notice to see > > >>> who's > > >>> interested. The more we order the cheaper they are. I've mocked up a > > >>> prototype of the chassis > > >>> for your review and comments. > > >>> > > >>> Thanks. > > >>> > > >>> > > >>> > > >>> > > >>> > > >>> > > >>> On 06/ 6/14 07:55 AM, Crusty OMO wrote: > > >>> > > >>> Thanks John, > > >>> > > >>> Andrew, > > >>> > > >>> That would be great if you could do a fill on the area around the > > >>> regulator, or perhaps walk me through it? The other error about pads being > > >>> next to each other doesn't matter, I just over rule the computer's > > >>> objection. > > >>> > > >>> Cheers, > > >>> Josh > > >>> > > >>> > > >>> ------------------------------ > > >>> From: mon...@vitasoft.org > > >>> To: n8ve...@googlegroups.com > > >>> > > >>> Subject: RE: [N8VEM-S100:3991] ALTAIR/IMSAI 8080 CPU replacement board > > >>> Date: Thu, 5 Jun 2014 21:26:15 -0700 > > >>> > > >>> Josh, Andrew may be able to brush it up. He is a marvel at that these > > >>> things > > >>> > > >>> John > > >>> > > >>> > > >>> > > >>> > > >>> > > >>> *From:* n8ve...@googlegroups.com [mailto:n....@googlegroups.com] *On > > >>> Behalf Of *Crusty OMO > > >>> > > >>> *Sent:* Thursday, June 5, 2014 8:29 PM > > >>> *To:* n8ve...@googlegroups.com > > >>> > > >>> *Subject:* RE: [N8VEM-S100:3990] ALTAIR/IMSAI 8080 CPU replacement board > > >>> > > >>> > > >>> > > >>> Hi John, > > >>> > > >>> I uploaded the board, schematic(s), gerber files and firmware file to > > >>> the Wiki site. > > >>> Look in > > >>> Board Information, S-100 boards, S-100 ALTAIR-IMSAI 8080 CPU Board > > >>> > > >>> The DRC produces 2 errors which I don't know how to suppress. > > >>> 1 error is a drill pad next to a mounting pad for the SD card, I > > >>> oversized the pads and they overlap. Neither pad is an active pin or > > >>> conductor, the drill is just a pilot hole to position the SD card socket, > > >>> the pad is just to solder the body of the socket. > > >>> The other error(s) are from a bunch of traces I dumped around the > > >>> voltage regulator to act as some extra heat sink. I should really do a > > >>> "fill" in that area, but I don't know how and it's just easier for me to > > >>> zig zag some wide traces to do the job. I ignore the errors, the gerber > > >>> files look good. > > >>> > > >>> The firmware file is just a modification of my 8080 monitor program. > > >>> It's been modified to use the 8250 UART's, and it also has the start of the > > >>> SPI/SD card interface. I only got as far as receiving the 0x01 status byte > > >>> from the SD card, which means it initialized successfully and I am able to > > >>> talk to it. In the weeks to come, I'll return to working on the firmware > > >>> to get it to boot CP/M from the SD card. But first, I must make some > > >>> progress with my ELF projects. > > >>> > > >>> Cheers, > > >>> Josh Bensadon > > >>> > > >>> > > >>> > > >>> ------------------------------ > > >>> > > >>> From: mon...@vitasoft.org > > >>> To: n8ve...@googlegroups.com > > >>> > > >>> Subject: RE: [N8VEM-S100:3982] ALTAIR/IMSAI 8080 CPU replacement board > > >>> Date: Thu, 5 Jun 2014 09:20:20 -0700 > > >>> > > >>> Josh, great work – you must have a lot of time on your hands! > > >>> > > >>> Could you put me down for 2 boards. > > >>> > > >>> Also could you point me to the most current schematic/board diagram > > >>> > > >>> Thanks > > >>> > > >>> John > > >>> > > >>> > > >>> > > >>> > > >>> > > >>> *From:* n8ve...@googlegroups.com [mailto:n....@googlegroups.com] *On > > >>> Behalf Of *Crusty OMO > > >>> > > >>> *Sent:* Wednesday, June 4, 2014 7:20 PM > > >>> *To:* n8ve...@googlegroups.com > > >>> > > >>> *Subject:* RE: [N8VEM-S100:3964] ALTAIR/IMSAI 8080 CPU replacement board > > >>> > > >>> > > >>> > > >>> Hi Guys, > > >>> > > >>> Well I'm finally done laying out this board. The autorouter only > > >>> produced swiss cheese with over 900 via's. It looked terrible! > > >>> Anyway, I scrapped everything the autorouter did initially, and > > >>> proceeded to layout the traces manually. Once I got what I thought was all > > >>> the hard parts done, I let the autorouter have another go at it. Again it > > >>> did not work out so well and it was unable to complete the board, so I > > >>> proceeded to undo it's changes and/or improve it's routing manually. I > > >>> squeezed those traces in there tight, any tighter and they'll be popping > > >>> off the board. Anyway, I'm working on the silkscreen layer and ready to do > > >>> a run. > > >>> Here's a picture of the board layout.... > > >>> You can see the serial port connections on the top left, SD card to the > > >>> right of the 27C256 EPROM, parallel ports next to that and the ALTAIR and > > >>> IMSAI front panel connectors. There are also a few jumpers around the > > >>> board to configure for CPU or Peripheral board only and ALTAIR/IMSAI mode. > > >>> Firmware for the board will be my next project, but I have to make > > >>> preparations for VCF-MW my priority. Dave Ruske and I will be doing a > > >>> COSMAC 1802 exhibit there in September. > > >>> > > >>> > > >>> > > >>> > > >>> > > >>> Cheers, > > >>> Josh Bensadon > > >>> > > >>> > > >>> > > >>> > > >>> ------------------------------ > > >>> > > >>> From: cru...@hotmail.com > > >>> To: n8ve...@googlegroups.com > > >>> > > >>> Subject: RE: [N8VEM-S100:3711] ALTAIR/IMSAI 8080 CPU replacement board > > >>> Date: Sun, 18 May 2014 00:57:20 +0000 > > >>> > > >>> Hi Guys, > > >>> > > >>> Well, this project has just reached a milestone. The hardware is tested > > >>> and working. I had some rewiring to do to make it work for the ALTAIR, I > > >>> thought the ALTAIR and IMSAI front panels were (near) identical, but they > > >>> are not. > > >>> There are some jumpers on the board to configure between ALTAIR and > > >>> IMSAI. > > >>> > > >>> Here's a picture of my debugging and testing setup. The board is being > > >>> tested in the ALTAIR. > > >>> > > >>> > > >>> > > >>> > > >>> > > >>> > > >>> Now entering Phase 2... building a PCB. > > >>> > > >>> Cheers, > > >>> Josh Bensadon > > >>> ------------------------------ > > >>> > > >>> From: mon...@vitasoft.org > > >>> To: n8ve...@googlegroups.com > > >>> > > >>> Subject: RE: [N8VEM-S100:3666] ALTAIR/IMSAI 8080 CPU replacement board > > >>> Date: Tue, 13 May 2014 13:56:05 -0700 > > >>> > > >>> Very nice Josh! > > >>> > > >>> John > > >>> > > >>> > > >>> > > >>> *From:* n8ve...@googlegroups.com [mailto:n....@googlegroups.com] *On > > >>> Behalf Of *Crusty OMO > > >>> > > >>> *Sent:* Tuesday, May 13, 2014 1:19 PM > > >>> *To:* n8ve...@googlegroups.com > > >>> > > >>> *Subject:* RE: [N8VEM-S100:3664] ALTAIR/IMSAI 8080 CPU replacement board > > >>> > > >>> > > >>> > > >>> Hi Group, > > >>> > > >>> Well, I'm cooking up this board at the moment. I have all the hardware > > >>> figured out to run like the original CPU boards. > > >>> I need to do a little more testing of the hardware, then I'll proceed to > > >>> building the boards. > > >>> The Memory, I/O, UARTs and SPI interface to the SD card appear to all be > > >>> working. > > >>> 8K chunks of memory can become either ROM, RAM or mapped off the board. > > >>> > > >>> CPU: 8080A > > >>> UARTS: 2x 8250 > > >>> RAM: 2x 32K > > >>> ROM: 32K > > >>> I/O: 8 input, 6 output pins > > >>> SPI to SD Card interface > > >>> ALTAIR & IMSAI Front Panel Connectors. > > >>> > > >>> Where ROM is selected in a block it overlaps the RAM on reads, but > > >>> writes go through to RAM. > > >>> The ROM can then be disabled and reads will come from the RAM at that > > >>> location. > > >>> The firmware is copying itself to RAM then switching off the ROM. > > >>> The CPU can be deselected with jumpers and the board will work as > > >>> RAM/ROM and I/O for another CPU on the bus. > > >>> > > >>> Pictures attached. Yellow-Data, Brown-Address, Blue-I/O, > > >>> Green-Control/Status & everything else. > > >>> > > >>> Regards, > > >>> Josh Bensadon > > >>> > > >>> > > >>> > > >>> > > >>> -- > > >>> You received this message because you are subscribed to the Google > > >>> Groups "N8VEM-S100" group. > > >>> To unsubscribe from this group and stop receiving emails from it, send > > >>> an email to n8vem-s...@googlegroups.com. > > >>> > > >>> For more options, visit https://groups.google.com/d/optout. > > >>> > > >>> > > >>> -- > > >>> You received this message because you are subscribed to the Google > > >>> Groups "N8VEM-S100" group. > > >>> To unsubscribe from this group and stop receiving emails from it, send > > >>> an email to n8vem-s...@googlegroups.com. > > >>> > > >>> For more options, visit https://groups.google.com/d/optout. > > >>> > > >>> > > >>> -- > > >>> You received this message because you are subscribed to the Google > > >>> Groups "N8VEM-S100" group. > > >>> To unsubscribe from this group and stop receiving emails from it, send > > >>> an email to n8vem-s...@googlegroups.com. > > >>> > > >>> For more options, visit https://groups.google.com/d/optout. > > >>> > > >>> -- > > >>> You received this message because you are subscribed to the Google > > >>> Groups "N8VEM-S100" group. > > >>> To unsubscribe from this group and stop receiving emails from it, send > > >>> an email to n8vem-s...@googlegroups.com. > > >>> > > >>> For more options, visit https://groups.google.com/d/optout. > > >>> > > >>> > > >>> -- > > >>> You received this message because you are subscribed to the Google > > >>> Groups "N8VEM-S100" group. > > >>> To unsubscribe from this group and stop receiving emails from it, send > > >>> an email to n8vem-s...@googlegroups.com. > > >>> > > >>> For more options, visit https://groups.google.com/d/optout. > > >>> > > >>> -- > > >>> You received this message because you are subscribed to the Google > > >>> Groups "N8VEM-S100" group. > > >>> To unsubscribe from this group and stop receiving emails from it, send > > >>> an email to n8vem-s...@googlegroups.com. > > >>> > > >>> For more options, visit https://groups.google.com/d/optout. > > >>> > > >>> > > >>> -- > > >>> You received this message because you are subscribed to the Google > > >>> Groups "N8VEM-S100" group. > > >>> To unsubscribe from this group and stop receiving emails from it, send > > >>> an email to n8vem-s...@googlegroups.com. > > >>> > > >>> For more options, visit https://groups.google.com/d/optout. > > >>> -- > > >>> You received this message because you are subscribed to the Google > > >>> Groups "N8VEM-S100" group. > > >>> To unsubscribe from this group and stop receiving emails from it, send > > >>> an email to n8vem-s...@googlegroups.com. > > >>> > > >>> For more options, visit https://groups.google.com/d/optout. > > >>> > > >>> > > >>> -- > > >>> Don Caprio...@gmail.com > > >>> > > >>> -- > > >> You received this message because you are subscribed to the Google Groups > > >> "N8VEM-S100" group. > > >> To unsubscribe from this group and stop receiving emails from it, send an > > >> email to n8vem-s100+...@googlegroups.com. > > >> For more options, visit https://groups.google.com/d/optout. > > >> > > > > > > > > > > > > -- > > > ------------------------------- > > > Don Caprio cap...@uxpro.com > > > http://www.uxpro.com > > > (925) 240-UNIX > > > > > > > > > > > -- > > ------------------------------- > > Don Caprio cap...@uxpro.com > > http://www.uxpro.com > > (925) 240-UNIX > > > > -- > > You received this message because you are subscribed to the Google Groups "N8VEM-S100" group. > > To unsubscribe from this group and stop receiving emails from it, send an email to n8vem-s100+...@googlegroups.com. > > For more options, visit https://groups.google.com/d/optout. > > -- > You received this message because you are subscribed to the Google Groups "N8VEM-S100" group. > To unsubscribe from this group and stop receiving emails from it, send an email to n8vem-s100+...@googlegroups.com. > For more options, visit https://groups.google.com/d/optout. |