Oh, I see... you only have the 727 set If so then, yeah, I'll need to
remove mine anyway, so I'd only need the 707 sound eproms & also v2.0
of the firmware if anyone has that.....

I could always make new ones from samples....but then it's not 100%
the real thing, cause of the VCA's, noise, resampling etc.

Cheers

Ryan

--- In tr-707@yahoogroups.com , "gregory zifcak" <foleymachine@...> wrote:
>
> well, if you already have 727 eproms, i guess you don't need mine my
> only 707 eproms are soldered carefully into my machine in kind of a
> complex configuration with my other 727 eproms.
>
> anyone got easy access to the 707 chips and is willing to send them
> off to ryan
>
>
> --- In tr-707@yahoogroups.com , "plutoniq9" <Plutonique9@> wrote:
> >
> > Hi Gregory,
> >
> > I've actually got a USB eprom burner comin' shortly that I bought off
> > the bay..... so if you want, I too could make the .bin dumps. We'd
> > still need the 707 & 727 sound eproms because if I was to make
> > multiple sound banks for the unit, i'd still like the original 707/727
> > sound ROM's to be a part of the 16 or 32 banks.
> >
> > I've found the Linn LM-1, Linn-9000 and Oberheim DMX sound binaries
> > online too, so I'd like to incorporate them into such a mod. The rest
> > could be created simply by using samples, applying either mu-law or
> > a-law compression to them & changing the dropping the bit rate to
> > 8-bit and whatever khz the sample rate is.
> >
> > First thing is first, I'm gonna remove my 727 eproms & solder in
> > 28-pin sockets & try just creating a single bank using the same 28-pin
> > eproms.....once i've got that down, then I'll work on creating a whole
> > bunch of banks for 'em.....the mod will be rather simple to
> > install..... cheap too.
> >
> > If you interested in helping, you could try tracking down some
> > original .bin dumps from older 8-bit drum machines, I'm gonna rip the
> > eproms from my TR-626, I'd like to find TR-909 .bin's....
> >
> > Seeya
> >
> > Ryan
> >
> > P.S send me an email if you want to throw the eproms my way, perhaps I
> > can figure out the interleaving by comparing various eproms.
> >
> >
> > --- In tr-707@yahoogroups.com , "gregory zifcak" <foleymachine@> wrote:
> > >
> > > hot damn! multiple banks so does this mean you no longer need
> > > binaries from kingconga i'm lagging on getting him the chips.
> > >
> > > --- In tr-707@yahoogroups.com , "plutoniq9" <Plutonique9@> wrote:
> > > >
> > > > Actually, I found that 4Mbit eproms aren't as expensive as SRAM
> > > > counterparts, mouser stocks 'em for like $6. 8Mbit are like
$12....
> > > >
> > > > They are 32-pin, original 707/727 are 28-pin. The extra address
> lines
> > > > are at the top of the chip (i think), so you could solder (or
socket
> > > > is better) 28-pins of the 4/8-Mbit into the holes left by the
> previous
> > > > Eprom, and just run the extra 4-address lines (for 4Mbit) to a
4-bit
> > > > rotary encoder, or use just a extra SPDT (in addition to the
rotary
> > > > encoder) for the 8Mbit. That would give you access to 16 or 32
banks
> > > > of sample memory..... so you could fill it with 505, 626, 707,
727,
> > > > 909, LM-1, HR-16, Drumulator, DMX, Korg DDD-XX, you
know....all the
> > > > classics...and still have room to create your own soundsets to
boot.
> > > >
> > > > I've modded my Casio Sk-5 sampler in this same way, so I know it's
> > > > definetley possible.....once we've figured out the interleaving
> > exactly.
> > > >
> > > > Food 4 thought
> > > >
> > > > Ryan
> > > >
> > > > So it wouldn't be too hard
> > > >
> > > > --- In tr-707@yahoogroups.com , "plutoniq9" <Plutonique9@> wrote:
> > > > >
> > > > > I just bought a USB eprom burner off the bay, so I'll be able to
> > mess
> > > > > around with "attempting" burning new sample eprom's soon.....
> > > > >
> > > > > Too bad they aren't all jammed on one eprom, as that would make
> > it ez
> > > > > to use a larger size, and add switchable banks (by toggle the
> extra
> > > > > address lines). I guess it makes it a little cool by them being
> > > > > seperate, cause then you could have different soundset
> > combos.... i'd
> > > > > probably just do it to the interleaved ROMS (not crash & ride
> > roms)...
> > > > >
> > > > > Only problem is that large eproms & parallel SRAMS are
expensive,
> > > > > about 36 bucks a piece for battery backed 1mb SRAMS....but you
> could
> > > > > fit quite a few sample banks on 'em (ie. 32). I don't know if
> Eproms
> > > > > go up to that size
> > > > >
> > > > > I know someone though email communication that understands
how to
> > > > > interleave samples on Eproms, i'll have to grab the visual basic
> > > > > program he uses.
> > > > >
> > > > > Ryan
> > > > >
> > > > > --- In tr-707@yahoogroups.com , "acousmatique" <acousmatique@>
> wrote:
> > > > > >
> > > > > > I was planning on ripping the sound SRAMs so that I could
> properly
> > > > > decode the data and
> > > > > > burn new sounds, but then I decided that it was too much
hassle.
> > > > > Except for the crash and
> > > > > > ride cymbals, those are easy. I won't ever use the 707
> sounds if I
> > > > > rip them. Since I have
> > > > > > wanted to make better clock controls I decided that the best
> thing
> > > > > to do is bypass the
> > > > > > whole "gate array" mess and simply reproduce the circuitry
> for the
> > > > > cymbals for every other
> > > > > > voice. This is a lot of new stuff, though - so I'll need to
> either
> > > > > re-case or squeeze
> > > > > > eerything onto a PCB. I am keen to try PCBs but I need a new
> > printer
> > > > > first, as mine died.
> > > > > > Re-casing is a pain but cool since I can fit many other mods
> > which I
> > > > > simply don't have
> > > > > > room for in there.
> > > > > >
> > > > > > This stuff is on hold with me until later in the spring. I am
> > > > > working a lame 3rd shift job
> > > > > > now and my garage workbench is frozen, so once it gets
> warmer out
> > > > > there I'll get started
> > > > > > again. I will desolder and rip all of the SRAMs sometime this
> > year,
> > > > > but I've had to put it off.
> > > > > >
> > > > > > I miss my modding!
> > > > > >
> > > > >
> > > >
> > >
> >
>