+arcadeshopper Posted November 18, 2013 Share Posted November 18, 2013 I am going to order a run of the 64k Jon Guidry cartridge pcboards.. I have set up a pre-sale item in my website's shopping cart for those interested http://www.arcadeshopper.com/wp/?page_id=11#!/~/product/category=5051340&id=30370736 Any questions lmk Greg 3 Quote Link to comment Share on other sites More sharing options...
+acadiel Posted November 19, 2013 Share Posted November 19, 2013 The pictures on the link are the 16K ones though Quote Link to comment Share on other sites More sharing options...
Manic1975 Posted November 19, 2013 Share Posted November 19, 2013 Is it possible to make super space module on Jon Guidry cartridge pcboard? I didn't notice any question about this. Have somebody try to make one? Quote Link to comment Share on other sites More sharing options...
CosmicBoy Posted November 19, 2013 Share Posted November 19, 2013 i cannot order from germany Quote Link to comment Share on other sites More sharing options...
Tursi Posted November 19, 2013 Share Posted November 19, 2013 Is it possible to make super space module on Jon Guidry cartridge pcboard? I didn't notice any question about this. Have somebody try to make one? Super Space is CRU-based, you'd have to add CRU decoding hardware. The PCB is not laid out for it. Quote Link to comment Share on other sites More sharing options...
+arcadeshopper Posted November 20, 2013 Author Share Posted November 20, 2013 i cannot order from germany Sure you can. Just let me know how many you want and mail me a postal money order in us $ or western union.. whichever you prefer I'll pm you with the info if your interested. Greg Quote Link to comment Share on other sites More sharing options...
+arcadeshopper Posted November 20, 2013 Author Share Posted November 20, 2013 The pictures on the link are the 16K ones though I just swiped pictures from Jon's website these are the REVC 64k boards I am having made. Quote Link to comment Share on other sites More sharing options...
slinkeey Posted November 20, 2013 Share Posted November 20, 2013 I wonder if the 512K ones will surface? The fact that it has an AVR intrigues me.. Quote Link to comment Share on other sites More sharing options...
Willsy Posted November 20, 2013 Share Posted November 20, 2013 I wonder if the 512K ones will surface? The fact that it has an AVR intrigues me.. Me too. I really want the ability to include GPL in my apps, I'm not so much interested in the standard 64K board these days. Quote Link to comment Share on other sites More sharing options...
+retroclouds Posted November 20, 2013 Share Posted November 20, 2013 :)i cannot order from germany Hi CosmicBoy, Are you living near the area of Mannheim / Heidelberg by any chance? Cheers retroclouds (also located in Germany) Quote Link to comment Share on other sites More sharing options...
CosmicBoy Posted November 20, 2013 Share Posted November 20, 2013 Hi CosmicBoy, Are you living near the area of Mannheim / Heidelberg by any chance? Cheers retroclouds (also located in Germany) Sorry, no. I'm living near Lüneburg. Quote Link to comment Share on other sites More sharing options...
+Ksarul Posted November 21, 2013 Share Posted November 21, 2013 They will surface as soon as we isolate a minor issue in the layout (the assembled boards work fine when they work but sometimes they don't--and the problem appears to be some type of capacitive resonance issue). As soon as we remove the problem, the boards will be available. I still have about 20 blanks of the current board revision for experimentation. I sent Fred Kaal a couple (via Berry Harmsen) for him to play with in an effort to speed up the troubleshooting process, as he will bring a new pair of eyes to the problem. Quote Link to comment Share on other sites More sharing options...
+arcadeshopper Posted November 21, 2013 Author Share Posted November 21, 2013 They will surface as soon as we isolate a minor issue in the layout (the assembled boards work fine when they work but sometimes they don't--and the problem appears to be some type of capacitive resonance issue). As soon as we remove the problem, the boards will be available. I still have about 20 blanks of the current board revision for experimentation. I sent Fred Kaal a couple (via Berry Harmsen) for him to play with in an effort to speed up the troubleshooting process, as he will bring a new pair of eyes to the problem. now with CAPACITIVE RESONANCE! Quote Link to comment Share on other sites More sharing options...
marc.hull Posted November 21, 2013 Share Posted November 21, 2013 (edited) They will surface as soon as we isolate a minor issue in the layout (the assembled boards work fine when they work but sometimes they don't--and the problem appears to be some type of capacitive resonance issue). As soon as we remove the problem, the boards will be available. I still have about 20 blanks of the current board revision for experimentation. I sent Fred Kaal a couple (via Berry Harmsen) for him to play with in an effort to speed up the troubleshooting process, as he will bring a new pair of eyes to the problem. What the hell is a capacative resonance? Edited November 21, 2013 by marc.hull Quote Link to comment Share on other sites More sharing options...
CPUWIZ Posted November 21, 2013 Share Posted November 21, 2013 http://en.wikipedia.org/wiki/Electrical_resonance Quote Link to comment Share on other sites More sharing options...
+acadiel Posted November 21, 2013 Share Posted November 21, 2013 It's either resonance, or feedback is my guess. Quote Link to comment Share on other sites More sharing options...
Omega-TI Posted November 21, 2013 Share Posted November 21, 2013 They will surface as soon as we isolate a minor issue in the layout (the assembled boards work fine when they work but sometimes they don't--and the problem appears to be some type of capacitive resonance issue). As soon as we remove the problem, the boards will be available. I still have about 20 blanks of the current board revision for experimentation. I sent Fred Kaal a couple (via Berry Harmsen) for him to play with in an effort to speed up the troubleshooting process, as he will bring a new pair of eyes to the problem. Interesting, I've never seen anything out of the radio or TV environments that suffered from capacitive resonance. Now I'm not familiar with the circuit or anything about it, but am just curious, do you have any switching transistors that might be simulating an AC waveform that prevents any capacitors inline from charging or discharging properly? Quote Link to comment Share on other sites More sharing options...
marc.hull Posted November 21, 2013 Share Posted November 21, 2013 Interesting, I've never seen anything out of the radio or TV environments that suffered from capacitive resonance. Now I'm not familiar with the circuit or anything about it, but am just curious, do you have any switching transistors that might be simulating an AC waveform that prevents any capacitors inline from charging or discharging properly? Yea that's a load of shit then... Did you guys create a buss without termination? Quote Link to comment Share on other sites More sharing options...
+arcadeshopper Posted November 26, 2013 Author Share Posted November 26, 2013 I'd like to close out the pre-order by 12/1 so if anyone else is interested in THESE boards lmk I can make arrangements for shipping anywhere, will just have to do it manually. Greg 1 Quote Link to comment Share on other sites More sharing options...
+arcadeshopper Posted November 27, 2013 Author Share Posted November 27, 2013 I've sold 50% of the boards I am ordering so I went ahead and paid for it. The boards should be here mid-dec Greg 1 Quote Link to comment Share on other sites More sharing options...
+acadiel Posted December 4, 2013 Share Posted December 4, 2013 (edited) I've sold 50% of the boards I am ordering so I went ahead and paid for it. The boards should be here mid-dec Greg If anyone wants the Mouser component SKUs I used, let me know and I will post them. Also, CodeHackCreate I think has a boatload of 74LS379 chips.... Edited December 4, 2013 by acadiel Quote Link to comment Share on other sites More sharing options...
+Lee Stewart Posted December 4, 2013 Share Posted December 4, 2013 If anyone wants the Mouser component SKUs I used, let me know and I will post them. Also, CodeHackCreate I think has a boatload of 74LS379 chips.... That would be nice, I think—and, thanks! ...lee Quote Link to comment Share on other sites More sharing options...
+acadiel Posted December 6, 2013 Share Posted December 6, 2013 (edited) Parts needed (BOM): 1) 74LS379 - Get from CodeHackCreate http://codehackcreate.com/store#!/~/product/category=0&id=1479571 $1.00/ea 2) 16 pin .300"/2.54mm socket - such as: http://www.mouser.com/Search/ProductDetail.aspx?R=DILB16P-223TLFvirtualkey64910000virtualkey649-DILB16P-223TLF $0.24/ea 3) 28 pin 2.54mm dual wipe socket - such as http://www.mouser.com/Search/ProductDetail.aspx?R=4828-6000-CPvirtualkey51750000virtualkey517-4828-6000-CP $0.50/ea 4) 68 ohm resistor - http://www.mouser.com/Search/ProductDetail.aspx?R=CFS1/4CT52R680Jvirtualkey66000000virtualkey660-CFS1/4CT52R680J $0.15/ea 5) 22pf capacitor - http://www.mouser.com/Search/ProductDetail.aspx?R=DEA1X3A220JC1Bvirtualkey64800000virtualkey81-DEA1X3A220JC1B $0.31/ea 6) 1000pf capacitor - http://www.mouser.com/ProductDetail/Vishay-BC-Components/H102K25X7RL63J5R/?qs=sGAEpiMZZMt1mVBmZSXTPIL3FlOwfnE8lBiqZxzoKsQ%3d $0.06/ea 7) 2-pin headers (4) - http://www.mouser.com/Search/ProductDetail.aspx?R=5-146274-2virtualkey57100000virtualkey571-5-146274-2 $0.26/ea 8 ) Jumpers (2) - http://www.mouser.com/ProductDetail/FCI/63429-202LF/?qs=sGAEpiMZZMslBFvnKnOhcuGDuyITr9Bf $0.13/ea Someone please double check me, because the actual parts I used were no longer there, so I had to search. Looks like Mouser doesn't stock the NTE 74LS379's through-hole anymore, they just have the SMT ones. Also, if you do order from Mouser, make sure to tell them in the checkout comments that you want it sent first class mail. It's only like $2.95. 64K Picture: Edited December 6, 2013 by acadiel 2 Quote Link to comment Share on other sites More sharing options...
+Lee Stewart Posted December 6, 2013 Share Posted December 6, 2013 Thanks, Jon! ...lee Quote Link to comment Share on other sites More sharing options...
+Lee Stewart Posted December 8, 2013 Share Posted December 8, 2013 Is there any performance downside to using a 64KB EPROM when smaller capacity EPROMs would work? The reason I ask is that the 64KBs seem to be the same price or cheaper than the smaller capacity EPROMs. @acadiel? @arcadeshopper? @Stuart? @Willsy? ...lee Quote Link to comment Share on other sites More sharing options...
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