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600/800/600/800XL/1088XEL Cart Slot Extension Set Order


21 replies to this topic

#1 Dropcheck OFFLINE  

Dropcheck

    Stargunner

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Posted Sat Jul 15, 2017 8:29 AM

I have been working with this project for about a month or so.  I think it's finally ready for prime time. 

 

 

One of the few issues still remaining with the 1088XEL board is the reality of no easy way to access the cartridge slot in a normal miniITX/microATX standard case.  Previous efforts at extending the cart slot access focused on pcb only extension and with some limited success ribbon cable only extension with a dumb pcb at each end to connect the cartridge with the motherboard slot.  The ribbon cable by necessity had to be rather short, no more than 12" or you started having problems with PHI0 signal loss. 

 

After working with tf_hh on the issue, we've come up with what I believe is a better solution that will allow longer ribbon cable lengths.  I have tested up to 18" of ribbon cable on multiple game carts, language carts, SIDE 1 cart, and Super SDX carts.  I cannot say everything in cartridge format will work, since I do not have every cartridge ever made, but it's probably going to be a small # if any. 

 

This version also has the added advantage that it can be used with any Atari 600/800, 600XL/800XL 8 bit computer motherboard.  It's not limited to the 1088XEL motherboard. 

 

This version consists of two pcbs joined together by either a 12" or 18" ribbon cable.  It is single cartridge capable.  The external cartridge pcb consists of a 30 pin card edge connector with cartridge guide mounting holes and 30 pin boxed header connector on back.   The board also has the dimensions to fit inside a 5 1/4" drive bay in a standard ITX/ATX case and/or mounting holes for placement elsewhere in the case.  The buffer pcb is inserted into the motherboard cartridge slot and provides buffering and buss conversion circuitry with it's own 30 pin boxed header connector for the ribbon cable connection. 

 

The picture below is of the prototype.  The production model will be very similar, except I will be using all TH parts.  No SMD.  The connectors will be keyed, boxed headers instead of bare pin headers.  

 

DSC_2403.jpg

 

I have sent a pricing request to Best Electronics for the cartridge guide part, but have not heard back on what the cost would be.  I suspect it will be around $5 per guide part.   Due to the uncertain cost and that it can be scavenged from a non-working motherboard, I am only going to offer it as an optional addon when you purchase extension set on my website.  I'll have a firmer price soon. 

 

DSC_2419Bigger.jpg

 

I elected not to produce an assembled 130XE Cart/ECI extension set, due to the expected low demand, but I will have bare boards with a BOM available on my website for those who feel they absolutely need it. 

 

This again is the prototype version of the 130XE Cart/ECI extension board.  The external pcb will have a single cartridge/ECI pinout with mounting holes for mounting the board and be all TH parts.  It will not have the mounting holes for the cartridge guide since it will not fit the XE version computers.

 

DSC_2416.jpg

 

Cost:

 

$35.00 per 600/800, 600XL/800XL, 1088XEL Cartridge Slot Extension Set   plus shipping

 

$15.00  per 130XE Cart/ECI bareboard set plus shipping

 

Shipping

 

In the US:   Standard Flat Rate for upto three sets =  8.00

 

International:  Varies depending on country.

 

Time frame from order window close to shipping will be the standard three to six weeks. 

 

Minimum sold must be at least 10.

 

10% ABBUC discount applies on assembled board set only. 

 

Orders placed on my website www.bitsofthepast.com

 

Order window should open tomorrow morning. 

 



#2 Dropcheck OFFLINE  

Dropcheck

    Stargunner

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Posted Sun Jul 16, 2017 5:23 AM

Update:

 

     Recieved a pricing quote on the 600XL/800XL cartridge guide part from Bradley.  He is quoting $4.95 plus shipping, so I have added a $6.00 extra charge to cover the extra cost for that part.  Just choose the correct option in the options dropdown if you want it.

 

     The order window is now open.  Should be up for at least two weeks, perhaps three. 



#3 917k OFFLINE  

917k

    Chopper Commander

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Posted Sun Jul 16, 2017 10:41 AM

Just ordered a couple of these and a 130xe eci2pbi, If you have any parts left over, I'd still like to get a 1088XEL XF551/Sdrive floppy combo.

 

Thank you, great stuff!



#4 Standard User OFFLINE  

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    Dragonstomper

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Posted Sun Jul 16, 2017 2:50 PM

Just ordered a couple. myself. ;)



#5 KlasO OFFLINE  

KlasO

    Space Invader

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Posted Mon Jul 17, 2017 1:17 PM

Just ordered one. 

 

Thanks for providing this product. 



#6 kheller2 OFFLINE  

kheller2

    Stargunner

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Posted Mon Jul 17, 2017 8:36 PM

Ordered.  I hate ordering stuff from you.  Every time I go to the shop I manage to find something else I want too.  :D



#7 orpheuswaking OFFLINE  

orpheuswaking

    Quadrunner

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Posted Mon Jul 17, 2017 8:45 PM

With the XEL not yet ready for prime time will you be offering these again when people start building them?

#8 Dropcheck OFFLINE  

Dropcheck

    Stargunner

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Posted Tue Jul 18, 2017 4:29 AM

With the XEL not yet ready for prime time will you be offering these again when people start building them?


It depends on a couple of factors. This is not strictly a 1088XEL only accessory, so there is a broader appeal and demand.  If the initial run sells out, then I would probably make it a part of the permanent store inventory. But I wouldn't keep a large number available, due to space and inventory cost issues.



#9 Dropcheck OFFLINE  

Dropcheck

    Stargunner

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Posted Tue Jul 18, 2017 4:30 AM

Ordered.  I hate ordering stuff from you.  Every time I go to the shop I manage to find something else I want too.  :D

 

 

soooo sorry........ ;)



#10 Dropcheck OFFLINE  

Dropcheck

    Stargunner

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Posted Fri Jul 21, 2017 3:57 PM

Update:

 

      As of today:

 

      8 of 10 sets ordered and paid for

 

      Only 2 more of this batch available!   :)



#11 Dropcheck OFFLINE  

Dropcheck

    Stargunner

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Posted Mon Jul 31, 2017 4:59 AM

Update:

 

      As of today:

 

      All assembled initial sets have been sold. 

 

 

      The board and parts order is going in for the first 10 sets. 

 

      At this point I don't know if there will be a second set. I'm not ruling it out, but I have three pending orders going right now and I think it's time to pull back and get them out the door before I do any more.  :)



#12 Brentarian OFFLINE  

Brentarian

    Moonsweeper

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Posted Mon Jul 31, 2017 7:47 AM

I will participate in the second set if there is one. Vacation and back to school costs prevented me from getting in this time.

#13 Stephen OFFLINE  

Stephen

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Posted Mon Jul 31, 2017 8:11 AM

I will participate in the second set if there is one. Vacation and back to school costs prevented me from getting in this time.

Same here



#14 orpheuswaking OFFLINE  

orpheuswaking

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Posted Tue Aug 1, 2017 7:38 AM

Thirded



#15 917k OFFLINE  

917k

    Chopper Commander

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Posted Wed Aug 9, 2017 2:16 PM

Any word on when these will begin shipping? 

 

Thanks



#16 Dropcheck OFFLINE  

Dropcheck

    Stargunner

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Posted Wed Aug 9, 2017 7:51 PM

Any word on when these will begin shipping? 

 

Thanks

 

I am currently testing the assembled boards.  If every thing goes okay I should be able to start shipping by this weekend.  :)



#17 917k OFFLINE  

917k

    Chopper Commander

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Posted Wed Aug 9, 2017 8:48 PM

Awesome, thanks.



#18 Dropcheck OFFLINE  

Dropcheck

    Stargunner

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Posted Thu Aug 10, 2017 7:00 PM

Running into data corruption with some cartridges on the longer ribbon cable option. Works fine with 12" cables.  I've tried every thing I can with the ribbon cable and connectors I have.  I have ordered different cable and connectors from Digikey and they should arrive Tues/Wed.

 

That is going to delay the shipment of those who ordered the longer cable option unfortunately.  :(



#19 Dropcheck OFFLINE  

Dropcheck

    Stargunner

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Posted Wed Aug 16, 2017 4:27 PM

Fixed issue:

 

    Not a cable issue.  I ended up replacing the 74ALS645N chip with a faster 74HCT645 variety.  Problem went away.  Making a massive mail out tomorrow morning.  :)

 

    Will be opening up a second run for this and the SDriveXEL accessory board in a day or so.  :)



#20 Dropcheck OFFLINE  

Dropcheck

    Stargunner

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Posted Thu Aug 17, 2017 7:16 AM

Okay final update on this run:

 

All orders have been filled and will be posted this morning.  :)

 

I am opening up the order window for a second run this morning as well.  :)

 

The main difference is that I will not be offering the cartridge guide with this run.  Also between a slightly higher price for the different speed 645 chip and extra cost for ribbon cable above 12" I've added 1 extra dollar for the 18" ribbon cable option.  :(



#21 917k OFFLINE  

917k

    Chopper Commander

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Posted Thu Aug 17, 2017 10:03 AM

Thanks for the update. Are you just going to be offering the S-Drive boards and not floppy/combo boards?



#22 Dropcheck OFFLINE  

Dropcheck

    Stargunner

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Posted Thu Aug 17, 2017 10:59 AM

Thanks for the update. Are you just going to be offering the S-Drive boards and not floppy/combo boards?

 

I haven't been able to fully test the combo boards on a 1088XEL board and ATX case/ps, so until Michael releases the final specs and gerber files I'm going to hold off offering them.  I don't expect to have problems, but you never know.  To my knowledge, no one has tried to marry a floppy drive and a floppy drive emulator on the same board.  :)






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