Oh man, SynthChaser! This is BRILLIANT!!! (and i agree that the demand for the ability to switch between more than one chip could be strong)... Definitely getting one for each, my OB--8 and my DMX!
That is an amazing mod/ invention for vintage synths. If only one of these could be made for every vintage synth that uses this obsolete battery system! Especially the Polysix.
Cool. I did a very similar mod to my Korg M1. But removing the battery results in "low battery" on the display. So I soldered a resistor between 5V and the battery + just to find out that the display shows "battery error". A second resistor between battery + and ground is needed to form a divider that outputs 3.1V. Now my M1 is happy with the battery again.Those japanese software developers were very thorough.
How hard would it be to develop a daughter board with several of these and be able to instantaneously switch between the different banks of sounds? Would you ever develop this chip for the juno 60 or prophet 5?
I could do that pretty easily. The challenge with the P5 is that there are too many revisions, each with different memory address spaces. So either I'd need to make a bunch of different revisions, or put some thought into a universal solution.
Synth Chaser I think the instantaneous switching between different banks would be a huge demand for people who own these older synths. Would it be easy to do one for the juno 60? That’s the one synth I have. The battery was done a few years ago but I would definitely install one in the future.
Very cool. I may order a couple for my OB-8 just for your idea about the factory sounds. I program my own, but would like to have the factory sounds which are long gone. I have the Encore MIDI kit. Should this work fine with that? Swapping out chips isn’t too bad, but it would be sweet if you could build a dual memory chip that has a jumper/switch to select between the two. A previous owner of my TR-808 did such a mod to it, doubling the pattern memory.
I'm pretty sure this won't work with the Encore MIDI, since for that you're pulling out all the factory ROMs and RAM and it's addressing the memory on its little board.
Synth Chaser Can you tell me which chip this replaces? I installed the kit and thought it only required pulling the ROM chips. It was a long time ago though.
Synth Chaser I verified that the 3x 6116 chips are still installed and I only removed EPROMs. I think the Encore OB-8 kit is basically the same as the factory MIDI but with some software bug fixes.
If you own another vintage synth you'd like me to apply this technology to, please let me know!
Oh man, SynthChaser! This is BRILLIANT!!! (and i agree that the demand for the ability to switch between more than one chip could be strong)... Definitely getting one for each, my OB--8 and my DMX!
I'd love to see one of these for the Polysix...
That is an amazing mod/ invention for vintage synths. If only one of these could be made for every vintage synth that uses this obsolete battery system! Especially the Polysix.
Cool. I did a very similar mod to my Korg M1. But removing the battery results in "low battery" on the display. So I soldered a resistor between 5V and the battery + just to find out that the display shows "battery error". A second resistor between battery + and ground is needed to form a divider that outputs 3.1V. Now my M1 is happy with the battery again.Those japanese software developers were very thorough.
Wow, that is so cool! I want one for my Oberheim DX. Also, wondering if this could be used in a Sequential Multitrack and TOM 420.
brilliant!
Awesome. Gonna buy 2 of these for my obxa
I need this for my DX !! will you have more? also do you have anything for the drumtraks as well? thanks!
How hard would it be to develop a daughter board with several of these and be able to instantaneously switch between the different banks of sounds? Would you ever develop this chip for the juno 60 or prophet 5?
I could do that pretty easily. The challenge with the P5 is that there are too many revisions, each with different memory address spaces. So either I'd need to make a bunch of different revisions, or put some thought into a universal solution.
Synth Chaser I think the instantaneous switching between different banks would be a huge demand for people who own these older synths. Would it be easy to do one for the juno 60? That’s the one synth I have. The battery was done a few years ago but I would definitely install one in the future.
Awesome!!!
excellent vid & chip man! how about a jupiter-8 modification (: ?
Don't you have to back up your presets first?
for the Oberheim Four Voice? the programmer has the same battery, but the ram chips are 4, two for every board.
Sorry, different RAM chips, won't work in 4 voice (or OB-X). I'd love to get my hands on a 4/8 voice to develop and test something like this.
Thanks!
Elka synthex?
Woah! will this work with my late model OB-8 with midi?
If it's the factory MIDI, yes!
And... now noticing your picture, should have one for the DSX later this week.
Synth Chaser. Very cool. But How would this compare to the Electrongate MRAM boards? I know Paul’s stuff has bank switching.
Very cool. I may order a couple for my OB-8 just for your idea about the factory sounds. I program my own, but would like to have the factory sounds which are long gone. I have the Encore MIDI kit. Should this work fine with that?
Swapping out chips isn’t too bad, but it would be sweet if you could build a dual memory chip that has a jumper/switch to select between the two. A previous owner of my TR-808 did such a mod to it, doubling the pattern memory.
I'm pretty sure this won't work with the Encore MIDI, since for that you're pulling out all the factory ROMs and RAM and it's addressing the memory on its little board.
Synth Chaser Can you tell me which chip this replaces? I installed the kit and thought it only required pulling the ROM chips. It was a long time ago though.
It replaces the 6116 RAM chips.
Synth Chaser I verified that the 3x 6116 chips are still installed and I only removed EPROMs. I think the Encore OB-8 kit is basically the same as the factory MIDI but with some software bug fixes.
You can get the factory OB-8 band via sysex through the lasermammoth site using google chrome