RE: [N8VEM-S100:4436] Re: ALTAIR/IMSAI 8080 CPU replacement board

Hi Don,

Sorry, I must have missed your order, but no worries, I made some extra. Sure you can have 2.

Please email me your address to cru123styomo@hot123mail.com123 (and remove the numbers from that email address).

Cheers,
Josh.

Date: Mon, 30 Jun 2014 13:55:23 -0700
Subject: Re: [N8VEM-S100:4436] Re: ALTAIR/IMSAI 8080 CPU replacement board
From: cap...@uxpro.com
To: n8vem...@googlegroups.com

Josh,

I had requested one of these boards but don't see my name on the list.

If available I'd two. If not one for sure.

On Mon, Jun 30, 2014 at 1:41 PM, Crusty OMO <crus...@hotmail.com> wrote:

Hi Guys,

The 8080A CPU boards are here! They look good! I'll put one together soon, for now I'm still working from the prototype to make firmware.

Cost of boards are $20 each (CPU or Prototype board).
Shipping options are:
-USA Shipping (sending next week)
-Flat pack $5 for 2 boards, $7 for 3 (boards wrapped in construction paper and shipping tape).
-Flat rate medium box, for $12.35 (up to 9 boards)

-Canada shipping -can ship Wednesday, no shipping on Canada day (Tomorrow)
-to US $7 for 2 boards, $9 for 3 boards

-Italy
-Fabio, to Italy, $16 for 3 boards.

-Australia
-Malcolm, send me your address, I'll get a rate for you.

Please see list below for orders received, feel free to change quantities.
Please send me a direct email to the following encrypted (remove the numbers) email.
cru123styomo@hot123mail.com123
Please send paypal payment (use the Send money to Friends option) to this email address.
Let me know your shipping preference.

Orders received:

Malcolm Macleod (1) CPU board + LM323K's
Fabio Battaglia               (3) CPU boards
Matthew Turner                (2) CPU boards (You can pick up boards when you come visit this summer)
Tom Lafleur    (2) CPU boards + LM323K's
John Monahan      (2) CPU boards + LM323K's
Rich Cini                  (2) CPU boards
Paul Birkel             LM323K's
Edward Snider                 (2) CPU boards
Brian Marstella               (1) CPU board + (1) Prototyping board (sea-o-pth)
Thierry Schembri              (1) CPU board
Jeff Galinat                  (2) CPU boards
Todd Goodman          (3) CPU boards + LM323K's
Rob Doyle                     (1) CPU board
Gary Kaufman                  (2) CPU boards
Jack Rubin                    (1) CPU board   (I can bring board to VCF-MW in September, OK?)
Leon Byles                    (1) CPU board
Pete Plank                    (1) CPU board

There were 5 orders for LM323K TO-3 voltage regulators, I only have 15 available for sale but 4 are pull's.
I will give them a quick test to be sure they are working. I think it's only fair to split them up equally in the group.
3 regulators each. Please include $2 for each ($6 total). I don't know yet how it will affect shipping cost (Flat rate medium box obviously won't be affected). Since I don't want to go back and forth to the post office, I'll ship them and request the difference later. Paul Birkel, since you're only buying LM323K's, kindly include $5 for shipping and we can balance the difference later, ok?

Finally, see below for a picture of the blank board.

PS. Note, the 8080A chip is the only chip with pin 1 to the right.
Also, you do not need to install all the 1488, 1489 chips. By installing only B3 & C2, the serial ports will work TX/RX, RTS/CTS. If you need DTR and/or DSR, install A2 and/or C3. A2 will also give modem signals (DCD & RI) to COM1. B2 is for Modem signals to COM2. There are 2 connectors for the serial ports. Top is 1:1 and bottom is IDC. This should accommodate the majority of RS-232 connectors with ribbons. If need be, you can cut all the traces between these two connectors on the bottom. Most of the driver/receiver chips are traced to the IDC connector from the top of the board. Then you can install your own jumper wires to configure the 1:1 header to your own needs.
Use open frame sockets for 8250's, so you can hide a decoupling capacitor beneath the chip.

Regards,
Josh Bensadon

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Don Caprio cap...@uxpro.com
http://www.uxpro.com
(925) 240-UNIX

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