Vintage Simmons Drums (UK) Users Group

Hi,

Does anybody know what the four-prommed SDS7 cards are used for? Are
the sounds selectable like on a Simmons SDS1000, or are they parts of
sounds on separate chips like on rival machines such as the LinnDrum,
Oberheim DMX, or Sequential Circuits Drumtraks. I found a Simmons SDS7
tom card on eBay today and just wondered that. I know that it has
the "Townhouse Tom", "Gated Tom", "Conga 1", and "Conga 2" EPROMS
installed on an expansion card that is mounted where the single EPROM
goes on a digital-analog SDS7 card. The expansion board is not
something made or installed by a third-party user because it
said "Simmons Group Centre" on the expander board. I have not seen this
before. I have only seen the digital-analog card that holds one EPROM
and the digital card that holds two EPROMs. Can anyone tell me what the
four-prom cards are for?

Thanks for your help

Dean Rumsey

Isn´t there any switch for selecting which eprom to read from ?

Alternatively, maybe the analog section is bypassed and its programming features are used to change eprom.

WT

http://medlem.spray.se/waveterm/LJLab2006/

----- Original Message -----
From: hamsterdrum85
To: Simmons_Drums@yahoogroups.com
Sent: Friday, December 21, 2007 11:58 PM
Subject: [Simmons Drums] Questions on four-prommed SDS7 cards


Hi,

Does anybody know what the four-prommed SDS7 cards are used for? Are
the sounds selectable like on a Simmons SDS1000, or are they parts of
sounds on separate chips like on rival machines such as the LinnDrum,
Oberheim DMX, or Sequential Circuits Drumtraks. I found a Simmons SDS7
tom card on eBay today and just wondered that. I know that it has
the "Townhouse Tom", "Gated Tom", "Conga 1", and "Conga 2" EPROMS
installed on an expansion card that is mounted where the single EPROM
goes on a digital-analog SDS7 card. The expansion board is not
something made or installed by a third-party user because it
said "Simmons Group Centre" on the expander board. I have not seen this
before. I have only seen the digital-analog card that holds one EPROM
and the digital card that holds two EPROMs. Can anyone tell me what the
four-prom cards are for?

Thanks for your help

Dean Rumsey





[Non-text portions of this message have been removed]

Then I probably suppose that there are no Simmons SDS7 cards that
will hold more than 16k (depending on the card type). I'm wondering
if there is a possibility to make an SDS7 hold cards that contain
multiple 8k or 16k EPROMs as one sample, such as making the full-
length Linn crash sample converted to 8-bit linear from the original
4k chips with the use of an Oberheim Prommer and place the newly
burnt 8k or 16k EPROMs on the cards.

--- In Simmons_Drums@yahoogroups.com, "WT" <waveterm@...> wrote:
>
> Isn´t there any switch for selecting which eprom to read from ?
>
> Alternatively, maybe the analog section is bypassed and its
programming features are used to change eprom.
>
> WT
>
> http://medlem.spray.se/waveterm/LJLab2006/
>
> ----- Original Message -----
> From: hamsterdrum85
> To: Simmons_Drums@yahoogroups.com
> Sent: Friday, December 21, 2007 11:58 PM
> Subject: [Simmons Drums] Questions on four-prommed SDS7 cards
>
>
> Hi,
>
> Does anybody know what the four-prommed SDS7 cards are used for?
Are
> the sounds selectable like on a Simmons SDS1000, or are they
parts of
> sounds on separate chips like on rival machines such as the
LinnDrum,
> Oberheim DMX, or Sequential Circuits Drumtraks. I found a Simmons
SDS7
> tom card on eBay today and just wondered that. I know that it has
> the "Townhouse Tom", "Gated Tom", "Conga 1", and "Conga 2" EPROMS
> installed on an expansion card that is mounted where the single
EPROM
> goes on a digital-analog SDS7 card. The expansion board is not
> something made or installed by a third-party user because it
> said "Simmons Group Centre" on the expander board. I have not
seen this
> before. I have only seen the digital-analog card that holds one
EPROM
> and the digital card that holds two EPROMs. Can anyone tell me
what the
> four-prom cards are for?
>
> Thanks for your help
>
> Dean Rumsey
>
>
>
>
>
> [Non-text portions of this message have been removed]
>

--- In Simmons_Drums@yahoogroups.com, "hamsterdrum85"

> before. I have only seen the digital-analog card that holds one EPROM
> and the digital card that holds two EPROMs. Can anyone tell me what the
> four-prom cards are for?

I read somewhere that there was a modification you could get that took
either a bigger EPROM or a daughterboard with more sockets, and
allowed you to switch samples with the resonance control. IIRC the
lower two bits of the resonance value set which EPROM was selected -
obviously the difference it makes to the sound is tiny.

I'd love to get a hold of one of these, to work out what the mod is
and maybe copy it.

Gordon