flip Posted September 10, 2016 Share Posted September 10, 2016 Hi everyone,It has taken longer than expected, but I am happy to announce I have a final version of an RCA Studio II Multicart. The newer system board versions were crippling a signal on the cartridge port, which meant that larger games (using $c00 and higher) would not work. Thanks to Ed Keefe (also active here), the cart now fixes this signal, meaning that no modification is needed to the console itself!Using 2 hex encoders, 128 slots are available on an EEPROM - this is plenty for the existing games, both official ones and homebrew. The cartridge is compatible with clones, such as the Victory MPT-02 (though not with the Toshiba Visicom, as the slot/pinout is different). Should new games come out, or found, they can be added by flashing the EEPROM. Some photos are attached showing the cart playing Pong and Asteroids (both games by Paul Robson).It's been designed to fit the original cartridge shells. Two holes are needed in the front for the rotary selection switches (and some internal tabs need to go as well). I have some spare shells of broken carts, courtesy of toymailman. I probably won't have time to modify them for the carts, but I'll add the shells on a first-come basis (i.e. until they run out).The design is open source - see the schematics and the board file attached. You're welcome to build your own of course, but these are not intended to be used in a commercial product. If you'd rather have a ready-made one, I am happy to ship one anywhere in the world for US$40. Leave your username, whether you need a shell (on first come basis only - you'll have to modify it yourself to fit the cart). For those interested, I can add a small PCB that gives you composite out at no extra cost (but you need some soldering skills to add it to the console of course). Put that in your post as well...I'll keep a list below this post with orders, to keep track of things. When your cart is ready to ship, I'll send you a PM with further details.Any questions, feel free to ask! FliP rca_studio_II_mutli_v3.3.pdf RCA_Studio_II_multicart_eagle.zip 4 Quote Link to comment Share on other sites More sharing options...
flip Posted September 10, 2016 Author Share Posted September 10, 2016 Order list - © = complementary toymailman 1 (C) eKeefe 1 (C) paulrobson 1 (C) Mpt02 1 (C) 1 Quote Link to comment Share on other sites More sharing options...
mckafka99 Posted September 10, 2016 Share Posted September 10, 2016 I'm definitely interested in one! :-) Composite out and shell if available as well. Quote Link to comment Share on other sites More sharing options...
toymailman Posted September 10, 2016 Share Posted September 10, 2016 Order list - © = complementary toymailman 1 (C) eKeefe 1 (C) paulrobson 1 (C) Mpt02 1 (C) Thank you very much! This is great news that it works with the newer Rev E boards now too. Excellent work. Quote Link to comment Share on other sites More sharing options...
Blazing Lazers Posted September 10, 2016 Share Posted September 10, 2016 (edited) Of course I'm in for this!!! I'd like one with a shell, and the extra board for composite out too Edited September 10, 2016 by Blazing Lazers Quote Link to comment Share on other sites More sharing options...
flip Posted September 10, 2016 Author Share Posted September 10, 2016 Darn - it seems I can't edit the 2nd post to update the orders... I'll try to come up with another system to track what going on (probably Google Sheets) and post that here... FliP Quote Link to comment Share on other sites More sharing options...
krslam Posted September 10, 2016 Share Posted September 10, 2016 I'm in for 1 with shell and composite out! Quote Link to comment Share on other sites More sharing options...
rhcocker Posted September 10, 2016 Share Posted September 10, 2016 I don't currently own an RCA Studio II, but I'd like to have one of these in case I get a hold of this console. Please put me down for one multi-cart with shell and composite out. Thanks. Does anyone have an RCA Studio II for sale by chance? Quote Link to comment Share on other sites More sharing options...
lazzeri Posted September 10, 2016 Share Posted September 10, 2016 (edited) Order list - © = complementary toymailman 1 (C) eKeefe 1 (C) paulrobson 1 (C) Mpt02 1 (C) I want one. With shell, please. Interested in composite too. Thank you! Edited September 10, 2016 by lazzeri Quote Link to comment Share on other sites More sharing options...
ianoid Posted September 10, 2016 Share Posted September 10, 2016 I'd like a multicart with shell and a composite out board! Thanks! Quote Link to comment Share on other sites More sharing options...
+eebuckeye Posted September 10, 2016 Share Posted September 10, 2016 I want one with shell and composite please! Quote Link to comment Share on other sites More sharing options...
+KylJoy Posted September 10, 2016 Share Posted September 10, 2016 I would like one with shell and composite out, please. Quote Link to comment Share on other sites More sharing options...
flip Posted September 10, 2016 Author Share Posted September 10, 2016 Hi again, You can track orders here (should open a Google Sheet) FliP Quote Link to comment Share on other sites More sharing options...
lazzeri Posted September 11, 2016 Share Posted September 11, 2016 Hi again, You can track orders here (should open a Google Sheet) FliP I would like Composite board too if that's OK. Thank you again! Quote Link to comment Share on other sites More sharing options...
BassGuitari Posted September 11, 2016 Share Posted September 11, 2016 I am interested in a multicart only, please! Are there labels for the carts, by any chance? Quote Link to comment Share on other sites More sharing options...
spaceman Posted September 11, 2016 Share Posted September 11, 2016 I definitely want one with shell if possible please. Quote Link to comment Share on other sites More sharing options...
phreak97 Posted September 11, 2016 Share Posted September 11, 2016 Very nice work! What is that lcd module youre using to test with? Quote Link to comment Share on other sites More sharing options...
flip Posted September 11, 2016 Author Share Posted September 11, 2016 Very nice work! What is that lcd module youre using to test with? It's an Adafruit NTSC/PAL TFT panel - a bit small (1,5") but they have bigger ones: https://www.adafruit.com/category/110 The idea was to make a 'portable' Studio II , but in the meantime, I've found this on e-bay... That would only require a little stereo socket on the console that could double as video out... Quote Link to comment Share on other sites More sharing options...
rayik Posted September 11, 2016 Share Posted September 11, 2016 I'm interested in multicart (with shell) and composite out board. Thank you. Quote Link to comment Share on other sites More sharing options...
rayik Posted September 12, 2016 Share Posted September 12, 2016 Thank you for putting me on the list. Could you please add that I'd like a shell. Thank you Quote Link to comment Share on other sites More sharing options...
+swlovinist Posted September 12, 2016 Share Posted September 12, 2016 Sign me up for one, with PCB and shell also. Quote Link to comment Share on other sites More sharing options...
BassGuitari Posted September 12, 2016 Share Posted September 12, 2016 I am interested in a multicart only, please! Actually, on second thought, could I get a shell as well? Thanks! Quote Link to comment Share on other sites More sharing options...
flip Posted September 13, 2016 Author Share Posted September 13, 2016 Quick update: thirteen carts built, waiting for their EEPROMs. Still waiting for the composite boards... Only one cartridge shell left, so if you want one, better be quick... flip 5 Quote Link to comment Share on other sites More sharing options...
carlsson Posted September 13, 2016 Share Posted September 13, 2016 I'd want a multicart + composite board (unless it is dead easy to mod a Conic M1200 - feel free to point me to a page in that case). I think I can live without a shell, or reuse my spare Blackjack cartridge. Hm.. so we're filling in our details on the Google sheet? I'll look it up right away. Quote Link to comment Share on other sites More sharing options...
lazzeri Posted September 13, 2016 Share Posted September 13, 2016 Quick update: thirteen carts built, waiting for their EEPROMs. Still waiting for the composite boards... Only one cartridge shell left, so if you want one, better be quick... flip Great news! Thanks! Quote Link to comment Share on other sites More sharing options...
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