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XT IDE Ordering interest? (Was: Xt-ide

XT IDE Ordering interest? (Was: Xt-ide

  • 1

    Votes: 59 52.7%
  • 2

    Votes: 38 33.9%
  • 3

    Votes: 8 7.1%
  • 4

    Votes: 5 4.5%
  • 5+ (please post how many below)

    Votes: 2 1.8%

  • Total voters
    112
Is it possible to order just the PCB without any parts?

Hmm, officialy I want to say no since it adds a level of complication that I just don't want to deal with. The parts for each card are not more that about $5 - $8 and the shipping would be the same, so I don't think there would be much point.

Do you have some sort of modifications/custom build in mind?
 
I am likely going to order 100 PCBs this week. if you want me to order 101 of them, ok. Unless you've got your own stockpile of parts to use on this, you won't be saving any money by not buying the parts through us too.
 
IT IS DONE

Ordered 101 cards today.
Total cost was $610, incuding retooling fees and shipping. (shipping was $85 ouch!)

We are in full scale production. Not sure if I'll get them before the end of the year, but it really looks like we will be filling orders through january.

yay!
 
awesome hargle. you guys did an outstanding job on this project. the vintage computing community owes you for this. :p

even my ancient prototype of the card (first version?) works perfectly. also just to let you know, after i flashed the card's ROM to 0.10, it started working with ELKS and Minix.
 
You can put me down for one of those kits. Now I can put the hot-rod XT back up in working order as my Tandy 1000 is using it's SCSI controller.
 
Good to hear Hargle. Did they give you an ETA on them?

The quote was for 12 days. I think that's 12 days for them to get the product created, then any number of days for shipping. Throw in a holiday or two and who knows when we'll see any of it.
 
I could use two more XTIDEs (kits). I'd like to have one extra bracket for the previous XTIDE i ordered.

I replaced SEEQ with Atmel EEPROMs on both of my XTIDEs and i recommend that to all with SEEQ EEPROMs. Maybe you could sell Atmel EEPROMs to those who already have XTIDE with SEEQ?
 
I replaced SEEQ with Atmel EEPROMs on both of my XTIDEs and i recommend that to all with SEEQ EEPROMs. Maybe you could sell Atmel EEPROMs to those who already have XTIDE with SEEQ?

I was about to ask that too. I would love to replace my SEEQ eeprom with one of the new Atmel chips. Perhaps a poll amongst the existing board users to see how many would like the newer chips?

My understanding is after replacement with the Atmel chip, you could leave the WP jumper enabled all the time?

Anyway, I'm excited to get the new cards... it's like Christmas! :p woohoo!
__
Trevor
 
My understanding is after replacement with the Atmel chip, you could leave the WP jumper enabled all the time?
yep, that's the way it's supposed to work.
I now have extra brackets for anyone who forfeited theirs during the last run, and I think we can certainly do an extra half dozen or so eeproms for those who want to switch out. there's also nothing stopping you from going straight to mouser.com and grabbing one yourself:
http://www.mouser.com/ProductDetail/Atmel/AT28C64B-15PU/?qs=sGAEpiMZZMt9f4L4Rxsd6pxisIORc4j0

Or shoot me a PM if you want to us to get you an atmel part or if you need a bracket. If you are not buying more kits in the process, it probably won't save you any money over just ordering from mouser today though.

Note that you unlucky few who got the 1st prototypes, you will not be able to mount a bracket on them at all, as there is no space for drilling the mounting holes.
 
I have my name down for 2 of the new kits when they arrive. If you could put a note or something just to include a bracket and extra eeprom, I'd be most appreciative :D

Many thanks!
__
Trevor
 
Off topic (kinda) question...

How large of an EEPROM will the XTIDE support?
If we wanted to use it as a ROM holder for other ideas, could we put a 64KB rom in it?

Just wondering :D
__
Trevor
 
Hi! The XT-IDE is designed for an 8KB EPROM/EEPROM. You could put a 27C256 or 27C512 in the socket and it might work but you would still only be able to access the first 8KB section.

You could probably modify the PCB with cuts and jumpers to get broader addressing range although I don't think that's what you are looking for.

Thanks and have a nice day!

Andrew Lynch
 
Anyone that wishes to purchase an Atmel chip to replace their SEEQ chip please add that to the spread sheet, I added a column for it.

I am strongly leaning towards ordering the EPROMs from Mouser so that we can make sure that we get the ATMel part. It would be no big deal to order extra and add the cost in with the XT-IDE kits, we just need to know how many extra we need to buy.

Also, all of the new cards/kits will include a bracket and screws, so no need to request one. If you need a spare for the other cards or something along those line add it into the comments column on the spread sheet.
 
For those of us who didn't follow the techincal question in deep, what is the difference between SEEQ and Atmel? Does one read faster, easier to reprogram in place, more compatible with various bus speed discrepancies etc? You don't have to write a whole page of technical data, just give the basic point and quote what is the difference in price - is it $1, $5, $10 per chip?
 
For those of us who didn't follow the techincal question in deep, what is the difference between SEEQ and Atmel? Does one read faster, easier to reprogram in place, more compatible with various bus speed discrepancies etc? You don't have to write a whole page of technical data, just give the basic point and quote what is the difference in price - is it $1, $5, $10 per chip?

My understanding is that the SEEQ part is unreliable and prone to failure. The price difference is negligible actually. Mouser has the ATMel for $3 each (for 100) and the SEEQ at Jameco is $3.25 each (for 100), so by the time you add in the tax and shipping etc they are pretty close to being the same price.
 
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