santosp

From all these bubble envelopes -26 carts total-, missing one thing. The decal! Tomorrow envelopes closed and after will be mailed. Right. Yours is as you described above.

Hi. From this point and after, I haven't the possibility to keep queue on this cartridge, even for someone which stated interest, and has not paid or respond till now. Two single pcb's reserved for Defender_2600 member, and only few (about four) remain available. I mention this public, so there are no misunderstandings.

Hi. Box isn't available cause cost me so much to buy plus shipping here. This was a good lesson I learned from prior construction. Although believe me, I would like very much to present a complete construction to the members. Maybe if I lived there.

Very nice decal indeed! Kevin have send that to me also, plus two other variations with different background. Too pity, they didn't print cause all the orders are "combo" type.

No, not at all. You are all from US, and even two European members have US consoles.

Done! US version I suppose?

Ok thank you. I will contact you with p.m. later.

The last update. Please look at first post. http://atariage.com/forums/topic/242258-new-pcb-for-activisions-rampage-double-dragon-interest-thread/?do=findComment&comment=3311851

I am not respond for him, but if he have more time available, will did major updates also in DD game. Only the changes at sprites and some background colors, make the game (for someone who have already play the original version) look awesome !!! For any member who have the skills to reprogram the 27C020 eprom, I could place a socket on PCB as to be possible any update in the future.

Hi there.. PCB's they come complete ready to run on your A7800. Therefore no need to solder or programming anything. From this point you have two options. 1. Two complete PCB's with a different game for each one, in case who you intend to place that on two plastic enclosures. 2. One PCB with two games as a combo, selected among them with a switch. In this second option, you can order also a special decal from me, crafted from KevinMos3 member here. Very soon I will post a picture of this. Also Kevin has put some personal color pallet touches on Double Dragon game, as to make it more attractive. More soon.

PCB's they just arrived. Picture on the first post.

Yes I know I am late only 6 months to respond. VBXE is something advanced for our retro Atari's, and maybe very useful for some people's. I have install mine on my A1200 XL. I wish for the day which someone make development for a device which work on our today's VGA monitors. I don't care if will support HDMI or simple VGA output, and really I don't care if it have any of the hardware options of VBXE... I just like to see my original Atari screen on the same VGA monitor of my PC.

Returning back on the post of atariLBC member here, I made a decision. Because I don't know when Kevin complete the color palette of Rampage, and thanks to this new PCB now also on Double Dragon , I place the Eprom ic on a gold plated dip socket. With that way everyone could be erase and rewrite any new version of Kevin's roms.

From what I know, Kevin have make many work on background gfx for Rampage, even if I never happened to see. A big improvement for this game it would be someone to make a 50/60 Hz switch, so could also be playable here in Europe,

Thank you, I have included you on this.

Hi jrose78. Ok lets start.. Activision make between others the two specific games. Because of its data size -128 Kbyte each one- to be possible to work on Atari 7800, need a data control mechanism. This in hardware language called bank-switch. Unlike with Atari games which have another control mechanism implemented with simple logic ic's (74LS...), Activision for cost reducing plus space saving used only one complex for that era ic, a PLD. This mean Programmable Logic Device, and on this you can build inside many logic ic's using programming data. Now, after programming these data, the ic "locked" as to not be possible for someone else to copy and remake the game on another cartridge. End of lesson! I design this cartridge to can work with each one of the games only, or as a combo with two games choose one or the other from a switch. So you have two order options. 1. You could buy one board with one of the games who you prefer Rampage or Double Dragon, or two boards for the two games. After take a plastic enclosure from any old original Atari 2600 or Atari 7800 cartridge, and place there your new boards. For this case I have not support decals. If you want you can print alone one, on a printing shop. 2. You could buy the same board with a bigger eprom ic which hosts both games, plus a switch to choose each one want to play. In this case I will support two decals -face & plate-, which will design a good friend here KevinMos3, and I will present it when its ready, in the first post of this thread. Also have the same option to use an old Atari cartridge enclosure to place this new one inside. But to have access to the selector switch, must do a small hole on the back plastic enclosure. I have not time to explain now the Pal and Ntsc system colors. If you live in USA so you can play both games, if no only Double Dragon.

Thank you. When you say identical, you mean that the first half file is exact the same with the second? I see cause in my case its not true. I am not sure if I have keep the original dumped file, but I will send you with p.m. what I am talking about, as to check it.

Nope, I use the original Rom. Or someone can use the web version, swapped with your excellent way as you describe on your thread. I believe cause Eckhard Stolberg is the appropriate person to give a generalized explanation on how it works. As for the Novel approach, I believe cause the then speaking, refer to the way which the PAL pld was used. In reality Kevin Cooper has use even the last resource available on this little pld.

Thank you Al.

Hi. I need to edit this post as to add a interest list. Thank you. http://atariage.com/forums/topic/242258-new-pcb-for-activisions-rampage-double-dragon-interest-thread/?do=findComment&comment=3311851

Thanks for the support guys! Also a new switch-less way to choose between the games coming, thanks to a lot of working bee in here. Stay tuned....

Thank you MacRorie. Soon I will make a list of interested members. @phoenixdownita Have already done.

Good idea! Could be added, but let first see if there is any interest at all.

Hello to all. I start this thread as to check any interest on an idea that I have recently, which emerged during the working on another project. I made a PCB to host as a combo the two Activision bank-switched games, for A7800. This PCB form could be placed on any original A7800 or A2600 cartridge enclosure, contrary to Activision who is specific for its own! There two possibilities as regards how someone could using this. First as a replacement for any of the two games, using simple an 27C010 Eprom. Second as a new combo game cart (Rampage + Double Dragon), using a 27C020 Eprom plus a latching micro switch, which will be utilitarian making a hole in the back plate of cartridge enclosure. For this second version specific, I am in cooperation with a good friend here Kevin, as to design a combo decal. Everyone will be able to order a complete working PCB with or without combo specification, either the PCB neat with PLD logic on-board plus the needed decoupling ceramic capacitors. Mean that PCB meet full ENIG (gold plated top - bottom) specifications. The price for something like this could be 16$ plus 2$ for decal. Shipping cost to anywhere on the world is 7$, as registered parcel with a track number till the end destination. OK, as with my previous Commando construction, this is a limited production cartridge offered only within this AA thread. So if you feel that would you like to go it with something like this, please let me know your interest here, as to be able to make all the needed orders on PCB, parts, and decal's. Thank you Panos. Special thanks to below helpers on this project. trebor KevinMos3 phoenixdownita --------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Update @ 16/09/15 --------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Update @ 21/09/15 Finally the pictures of PCB completed and working, plus the decal for this combo version. For upper decal (the smaller) I will print this as it look on second photo. Also Kevin let me include his Rampage and Double Dragon version as is till now. That means for each one.... 1. For Rampage, he never finished all of the character sprites, so he removed his incomplete new character sprites and returned them to the original sprites with just a few minor tweaks. The game is still pretty dramatically different looking because of the new buildings, enemies, and title screen. 2. For Double Dragon he did a sprite/color hack. Mostly filled in the gaps of the sprites to make them solid and also he did some touch-up work (like added glare to the windows in the first level). Last changed some of the colors as well to work with the filled in sprites. Activision Combo Interest.pdf

Sold on E bay. Thank you all.