Vintage Simmons Drums (UK) Users Group

I HAVE TMI,IS THERE A WAY TO DUMP DATA TO NEWER MIDI UNITS?i don't
want to dump/load to tape like many of the owners manuals suggest   IF
ANYONE KNOWS OR HAS INFO I WOULD GREATLY APPRECIATE IT THANX MATT

matt_ritche wrote:
> I HAVE TMI,IS THERE A WAY TO DUMP DATA TO NEWER MIDI UNITS?i don't
> want to dump/load to tape like many of the owners manuals suggest   IF
> ANYONE KNOWS OR HAS INFO I WOULD GREATLY APPRECIATE IT THANX MATT

Hi there,
   I noticed you're bidding on the Simmons EPROMs on eBay.  I'll hold 
off on bidding on them so we don't end up with a price war.

Gordon.

Hi, before you both bid yourself to death: Michael Buchner has
developped a way to read, write and edit the eproms with an ordinary
prommer. The plan is to publish the library (official and home brewed
stuff) as prommable binary files together with a "cookbook". Probably
on my site. 

--- In Simmons_Drums@yahoogroups.com, Gordon JC Pearce <gordon@g...>
wrote:

>
> matt_ritche wrote:
> > I HAVE TMI,IS THERE A WAY TO DUMP DATA TO NEWER MIDI UNITS?i don't
> > want to dump/load to tape like many of the owners manuals suggest   IF
> > ANYONE KNOWS OR HAS INFO I WOULD GREATLY APPRECIATE IT THANX MATT
> 
> Hi there,
>    I noticed you're bidding on the Simmons EPROMs on eBay.  I'll hold 
> off on bidding on them so we don't end up with a price war.
> 
> Gordon.
>

superwolle70 wrote:
> Hi, before you both bid yourself to death: Michael Buchner has
> developped a way to read, write and edit the eproms with an ordinary
> prommer. The plan is to publish the library (official and home brewed
> stuff) as prommable binary files together with a "cookbook". Probably
> on my site. 

Well, I've just got a load of EPROM images from Paul Maddox.  Now all I 
need to do is wait until my friend comes back from Ireland so I can go 
and steal his EPROM programmer.

There's nothing particularly magic about the contents of the EPROMs. 
It's just an unsigned 8-bit sample, the size of the available space. 
Nothing else.

You could make a very simple Simmons ROM player (well actually, it would 
play any similar chip, probably Sequential Drumtrak ones too) by just 
having a 13- or 14-bit counter clocked at a few kHz (anywhere from, say, 
6kHz to 40kHz) attached to the address lines, and an R-2R ladder 
(rembember building your own Covox Speech Thing from the plans 
downloaded off a bulletin board, way back before sound cards were 
common?).  Then to trigger the sample, you'd just drop the reset pin on 
the counter, it would count up, and the sample would play through the 
simple D/A converter.

Add a simple "decay" circuit, and have it control the clock speed, and a 
trigger circuit to control the counter and decay envelope, and 
congratulations - you've just invented the SDS-1!

Gordon.

Hi,

> You could make a very simple Simmons ROM player (well actually, it would
> play any similar chip, probably Sequential Drumtrak ones too) by just
> having a 13- or 14-bit counter clocked at a few kHz (anywhere from, say,
> 6kHz to 40kHz) attached to the address lines,

I did this a few years back ;-
http://www.modulus-music.com/products/modular/docs/modulus6.pdf

Schematics are there for anyone who wishes to build one.

Paul

--- In Simmons_Drums@yahoogroups.com, Gordon JC Pearce <gordon@g...>
wrote:
>
> matt_ritche wrote:
> > I HAVE TMI,IS THERE A WAY TO DUMP DATA TO NEWER MIDI UNITS?i don't
> > want to dump/load to tape like many of the owners manuals suggest   IF
> > ANYONE KNOWS OR HAS INFO I WOULD GREATLY APPRECIATE IT THANX MATT
> 
> Hi there,
>    I noticed you're bidding on the Simmons EPROMs on eBay.  I'll hold 
> off on bidding on them so we don't end up with a price war.
> 
> Gordon.
>
go ahead get it dude i think i'll have to pass on em for now