Vintage Simmons Drums (UK) Users Group

Hi Jesper,
this is exactly the thing I want to know. The III is the four channel device, as far as I know and the IV the two channel device, but the IV is not only half III. The IV has no master section with run generator and lfo, but may be the single channel is also different to the III.
I repaired Wolfgangs III two month ago. It has no oscillators at all, the tone is nothing but a resonating ladder filter, copied 1:1 from good old bob moog. If you turn the Noise/Tone pot to noise, the resonance is completely off, so also the impact click will not be audible. But on my schematics of the III there are 3 3086 per channel, these are containing transistor arrays to build this filter.
What I am wondering about is this pot on the IV called "Waveshape". Is this an osc or only an lfo? Maybe a good photo of both solder side and parts side would help.
Michael

----- Original Message -----
From: jesper@...
To: Simmons_Drums@yahoogroups.com
Sent: Monday, April 02, 2007 3:01 PM
Subject: [Simmons Drums] SDS-III vs SDS-IV internally


Hi List!

I'm looking inside my newly arrived SDS-IV due to a dead oscillator and I'm
comparing it to the schematics of SDS-III. Is it just me or aren't they
alike? There are no 3086's on the SDS-III schematics but quite a few in the
SDS-IV...

Anyone with a SDS-IV schematic around?

electronically yours, jesper
- -- --- ---- ----- ---- --- -- -
www.electronic-obsession.se

Order your own copy of the Machinepop/Imiafan
split-EP at www.electronic-obsession.se/label.asp

"Varför har du så många pianon?" (Nora Persson, 9 år)





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

So there _are_ 3086's... I didn't see those on the schematics. I'll gladly
take a few pictures when I dig into it again. I bet it's the same then...

But do you say that the 3086's are the tone generators so to speak? From my
limited experience and todays values I have my suspicion set at a 1458 which
in connected to both waveform and noise/tone potentiometer.

electronically yours, jesper
- -- --- ---- ----- ---- --- -- -
www.electronic-obsession.se

Order your own copy of the Machinepop/Imiafan
split-EP at www.electronic-obsession.se/label.asp

"Varför har du så många pianon?" (Nora Persson, 9 år)

----- Original Message -----
From: <michael.buchner@...>
To: <Simmons_Drums@yahoogroups.com>
Sent: Monday, April 02, 2007 3:49 PM
Subject: Re: [Simmons Drums] SDS-III vs SDS-IV internally


Hi Jesper,
this is exactly the thing I want to know. The III is the four channel
device, as far as I know and the IV the two channel device, but the IV is
not only half III. The IV has no master section with run generator and lfo,
but may be the single channel is also different to the III.
I repaired Wolfgangs III two month ago. It has no oscillators at all, the
tone is nothing but a resonating ladder filter, copied 1:1 from good old bob
moog. If you turn the Noise/Tone pot to noise, the resonance is completely
off, so also the impact click will not be audible. But on my schematics of
the III there are 3 3086 per channel, these are containing transistor arrays
to build this filter.
What I am wondering about is this pot on the IV called "Waveshape". Is this
an osc or only an lfo? Maybe a good photo of both solder side and parts side
would help.
Michael
----- Original Message -----
From: jesper@...
To: Simmons_Drums@yahoogroups.com
Sent: Monday, April 02, 2007 3:01 PM
Subject: [Simmons Drums] SDS-III vs SDS-IV internally


Hi List!

I'm looking inside my newly arrived SDS-IV due to a dead oscillator and
I'm
comparing it to the schematics of SDS-III. Is it just me or aren't they
alike? There are no 3086's on the SDS-III schematics but quite a few in
the
SDS-IV...

Anyone with a SDS-IV schematic around?

electronically yours, jesper
- -- --- ---- ----- ---- --- -- -
www.electronic-obsession.se

Order your own copy of the Machinepop/Imiafan
split-EP at www.electronic-obsession.se/label.asp

"Varför har du så många pianon?" (Nora Persson, 9 år)





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




Yahoo! Groups Links

Double checked the schematics... The 3086's are drawn as full schematics and
not standard IC's, that's why I missed them. Sure looks like the same setup.
If anyone tech-skilled want to look at the SDS-III schematics I'm having
suspicious thoughts of the 1458 in the top right corner on the schematics.
Pin 1 gives just 1/10 of the value on the corresponding channel. As I
interpret the circuitry this directly affects the tone/noise pot (which is
fully functional BTW).

What does the LFO section offer then? Doesn't look that impressive on the
schematics. Time to mod the SDS-IV maybe? Trying to read pictures
online+schematics getting this;

LFO speed (slow->fast)
range: slow/fast
LFO shape: square/sine
LFO on/off
run time (short->long)
run on/off
output level

So the SDS-III has no waveform control. interesting, I didn't know this...

electronically yours, jesper
- -- --- ---- ----- ---- --- -- -
www.electronic-obsession.se

Order your own copy of the Machinepop/Imiafan
split-EP at www.electronic-obsession.se/label.asp

"Varför har du så många pianon?" (Nora Persson, 9 år)

----- Original Message -----
From: <michael.buchner@...>
To: <Simmons_Drums@yahoogroups.com>
Sent: Monday, April 02, 2007 3:49 PM
Subject: Re: [Simmons Drums] SDS-III vs SDS-IV internally


Hi Jesper,
this is exactly the thing I want to know. The III is the four channel
device, as far as I know and the IV the two channel device, but the IV is
not only half III. The IV has no master section with run generator and lfo,
but may be the single channel is also different to the III.
I repaired Wolfgangs III two month ago. It has no oscillators at all, the
tone is nothing but a resonating ladder filter, copied 1:1 from good old bob
moog. If you turn the Noise/Tone pot to noise, the resonance is completely
off, so also the impact click will not be audible. But on my schematics of
the III there are 3 3086 per channel, these are containing transistor arrays
to build this filter.
What I am wondering about is this pot on the IV called "Waveshape". Is this
an osc or only an lfo? Maybe a good photo of both solder side and parts side
would help.
Michael
----- Original Message -----
From: jesper@...
To: Simmons_Drums@yahoogroups.com
Sent: Monday, April 02, 2007 3:01 PM
Subject: [Simmons Drums] SDS-III vs SDS-IV internally


Hi List!

I'm looking inside my newly arrived SDS-IV due to a dead oscillator and
I'm
comparing it to the schematics of SDS-III. Is it just me or aren't they
alike? There are no 3086's on the SDS-III schematics but quite a few in
the
SDS-IV...

Anyone with a SDS-IV schematic around?

electronically yours, jesper
- -- --- ---- ----- ---- --- -- -
www.electronic-obsession.se

Order your own copy of the Machinepop/Imiafan
split-EP at www.electronic-obsession.se/label.asp

"Varför har du så många pianon?" (Nora Persson, 9 år)





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




Yahoo! Groups Links

can anyone get the schematics online
like to see what you guys are talking about
BERK!

>-- Oorspronkelijk bericht --
>To: <Simmons_Drums@yahoogroups.com>
>From: <jesper@...>
>Date: Mon, 2 Apr 2007 16:49:44 +0200
>Subject: Re: [Simmons Drums] SDS-III vs SDS-IV internally
>Reply-To: Simmons_Drums@yahoogroups.com
>
>
>Double checked the schematics... The 3086's are drawn as full schematics
>and
>not standard IC's, that's why I missed them. Sure looks like the same setup.
>If anyone tech-skilled want to look at the SDS-III schematics I'm having
>
>suspicious thoughts of the 1458 in the top right corner on the schematics.
>
>Pin 1 gives just 1/10 of the value on the corresponding channel. As I
>interpret the circuitry this directly affects the tone/noise pot (which

is

>
>fully functional BTW).
>
>What does the LFO section offer then? Doesn't look that impressive on the
>
>schematics. Time to mod the SDS-IV maybe? Trying to read pictures
>online+schematics getting this;
>
>LFO speed (slow->fast)
>range: slow/fast
>LFO shape: square/sine
>LFO on/off
>run time (short->long)
>run on/off
>output level
>
>So the SDS-III has no waveform control. interesting, I didn't know this...
>
>electronically yours, jesper
>- -- --- ---- ----- ---- --- -- -
>www.electronic-obsession.se
>
>Order your own copy of the Machinepop/Imiafan
>split-EP at www.electronic-obsession.se/label.asp
>
>"Varför har du så många pianon?" (Nora Persson, 9 år)
>
>----- Original Message -----
>From: <michael.buchner@...>
>To: <Simmons_Drums@yahoogroups.com>
>Sent: Monday, April 02, 2007 3:49 PM
>Subject: Re: [Simmons Drums] SDS-III vs SDS-IV internally
>
>
>Hi Jesper,
>this is exactly the thing I want to know. The III is the four channel
>device, as far as I know and the IV the two channel device, but the IV is
>
>not only half III. The IV has no master section with run generator and lfo,
>
>but may be the single channel is also different to the III.
>I repaired Wolfgangs III two month ago. It has no oscillators at all, the
>
>tone is nothing but a resonating ladder filter, copied 1:1 from good old
>bob
>moog. If you turn the Noise/Tone pot to noise, the resonance is completely
>
>off, so also the impact click will not be audible. But on my schematics

of

>
>the III there are 3 3086 per channel, these are containing transistor arrays
>
>to build this filter.
>What I am wondering about is this pot on the IV called "Waveshape". Is this
>
>an osc or only an lfo? Maybe a good photo of both solder side and parts

side

>
>would help.
>Michael
> ----- Original Message -----
> From: jesper@...
> To: Simmons_Drums@yahoogroups.com
> Sent: Monday, April 02, 2007 3:01 PM
> Subject: [Simmons Drums] SDS-III vs SDS-IV internally
>
>
> Hi List!
>
> I'm looking inside my newly arrived SDS-IV due to a dead oscillator and
>
>I'm
> comparing it to the schematics of SDS-III. Is it just me or aren't they
> alike? There are no 3086's on the SDS-III schematics but quite a few in
>
>the
> SDS-IV...
>
> Anyone with a SDS-IV schematic around?
>
> electronically yours, jesper
> - -- --- ---- ----- ---- --- -- -
> www.electronic-obsession.se
>
> Order your own copy of the Machinepop/Imiafan
> split-EP at www.electronic-obsession.se/label.asp
>
> "Varför har du så många pianon?" (Nora Persson, 9 år)
>
>
>
>
>
>[Non-text portions of this message have been removed]
>
>
>
>
>Yahoo! Groups Links
>
>
>
>

________________________________________________________________________________________
12move ADSL: Voordelig, snel en onbeperkt internet.
Meer informatie vind je op http://adsl.12move.nl

Hi Berk,
they are already online at simmons.synth.net, watch for service scoops under
SDSIII / IV.
Michael

The SDS III has no tone generator. If you want to produce tone, you drive the (original moog...) filter into self oscillation by raising the resonance to a certain level. To understand the circuitry, call the "pitch" pot "cutoff frequency", the "noise tone balance" is "resonance", "impact click" is a short additional pulse on the "cutoff frequency".
In the schematics the 1485 you describe is the filter output amp. CV in is at T2, all CV's are added there. The filters input is IC4, Pin12, the only source of the beast is noise. Feedback is supplied by connecting the output via the noise/tone control and R56 back to the CV input.
Michael
From: jesper@...
To: Simmons_Drums@yahoogroups.com
Sent: Monday, April 02, 2007 4:20 PM
Subject: Re: [Simmons Drums] SDS-III vs SDS-IV internally


So there _are_ 3086's... I didn't see those on the schematics. I'll gladly
take a few pictures when I dig into it again. I bet it's the same then...

But do you say that the 3086's are the tone generators so to speak? From my
limited experience and todays values I have my suspicion set at a 1458 which
in connected to both waveform and noise/tone potentiometer.

electronically yours, jesper
- -- --- ---- ----- ---- --- -- -
www.electronic-obsession.se

Order your own copy of the Machinepop/Imiafan
split-EP at www.electronic-obsession.se/label.asp

"Varför har du så många pianon?" (Nora Persson, 9 år)

----- Original Message -----
From: <michael.buchner@...>
To: <Simmons_Drums@yahoogroups.com>
Sent: Monday, April 02, 2007 3:49 PM
Subject: Re: [Simmons Drums] SDS-III vs SDS-IV internally

Hi Jesper,
this is exactly the thing I want to know. The III is the four channel
device, as far as I know and the IV the two channel device, but the IV is
not only half III. The IV has no master section with run generator and lfo,
but may be the single channel is also different to the III.
I repaired Wolfgangs III two month ago. It has no oscillators at all, the
tone is nothing but a resonating ladder filter, copied 1:1 from good old bob
moog. If you turn the Noise/Tone pot to noise, the resonance is completely
off, so also the impact click will not be audible. But on my schematics of
the III there are 3 3086 per channel, these are containing transistor arrays
to build this filter.
What I am wondering about is this pot on the IV called "Waveshape". Is this
an osc or only an lfo? Maybe a good photo of both solder side and parts side
would help.
Michael
----- Original Message -----
From: jesper@...
To: Simmons_Drums@yahoogroups.com
Sent: Monday, April 02, 2007 3:01 PM
Subject: [Simmons Drums] SDS-III vs SDS-IV internally

Hi List!

I'm looking inside my newly arrived SDS-IV due to a dead oscillator and
I'm
comparing it to the schematics of SDS-III. Is it just me or aren't they
alike? There are no 3086's on the SDS-III schematics but quite a few in
the
SDS-IV...

Anyone with a SDS-IV schematic around?

electronically yours, jesper
- -- --- ---- ----- ---- --- -- -
www.electronic-obsession.se

Order your own copy of the Machinepop/Imiafan
split-EP at www.electronic-obsession.se/label.asp

"Varför har du så många pianon?" (Nora Persson, 9 år)

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

Yahoo! Groups Links





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

www.simmons.synth.net *doh*

:)

electronically yours, jesper
- -- --- ---- ----- ---- --- -- -
www.electronic-obsession.se

Order your own copy of the Machinepop/Imiafan
split-EP at www.electronic-obsession.se/label.asp

"Varför har du så många pianon?" (Nora Persson, 9 år)

----- Original Message -----
From: "Berk Aarts" <B.E.R.K@...>
To: <Simmons_Drums@yahoogroups.com>
Sent: Monday, April 02, 2007 7:10 PM
Subject: Betr: Re: [Simmons Drums] SDS-III vs SDS-IV internally


can anyone get the schematics online
like to see what you guys are talking about
BERK!
>-- Oorspronkelijk bericht --
>To: <Simmons_Drums@yahoogroups.com>
>From: <jesper@...>
>Date: Mon, 2 Apr 2007 16:49:44 +0200
>Subject: Re: [Simmons Drums] SDS-III vs SDS-IV internally
>Reply-To: Simmons_Drums@yahoogroups.com
>
>
>Double checked the schematics... The 3086's are drawn as full schematics
>and
>not standard IC's, that's why I missed them. Sure looks like the same
>setup.
>If anyone tech-skilled want to look at the SDS-III schematics I'm having
>
>suspicious thoughts of the 1458 in the top right corner on the schematics.
>
>Pin 1 gives just 1/10 of the value on the corresponding channel. As I
>interpret the circuitry this directly affects the tone/noise pot (which
is
>
>fully functional BTW).
>
>What does the LFO section offer then? Doesn't look that impressive on the
>
>schematics. Time to mod the SDS-IV maybe? Trying to read pictures
>online+schematics getting this;
>
>LFO speed (slow->fast)
>range: slow/fast
>LFO shape: square/sine
>LFO on/off
>run time (short->long)
>run on/off
>output level
>
>So the SDS-III has no waveform control. interesting, I didn't know this...
>
>electronically yours, jesper
>- -- --- ---- ----- ---- --- -- -
>www.electronic-obsession.se
>
>Order your own copy of the Machinepop/Imiafan
>split-EP at www.electronic-obsession.se/label.asp
>
>"Varför har du så många pianon?" (Nora Persson, 9 år)
>
>----- Original Message -----
>From: <michael.buchner@...>
>To: <Simmons_Drums@yahoogroups.com>
>Sent: Monday, April 02, 2007 3:49 PM
>Subject: Re: [Simmons Drums] SDS-III vs SDS-IV internally
>
>
>Hi Jesper,
>this is exactly the thing I want to know. The III is the four channel
>device, as far as I know and the IV the two channel device, but the IV is
>
>not only half III. The IV has no master section with run generator and lfo,
>
>but may be the single channel is also different to the III.
>I repaired Wolfgangs III two month ago. It has no oscillators at all, the
>
>tone is nothing but a resonating ladder filter, copied 1:1 from good old
>bob
>moog. If you turn the Noise/Tone pot to noise, the resonance is completely
>
>off, so also the impact click will not be audible. But on my schematics
of
>
>the III there are 3 3086 per channel, these are containing transistor
>arrays
>
>to build this filter.
>What I am wondering about is this pot on the IV called "Waveshape". Is this
>
>an osc or only an lfo? Maybe a good photo of both solder side and parts
side
>
>would help.
>Michael
> ----- Original Message -----
> From: jesper@...
> To: Simmons_Drums@yahoogroups.com
> Sent: Monday, April 02, 2007 3:01 PM
> Subject: [Simmons Drums] SDS-III vs SDS-IV internally
>
>
> Hi List!
>
> I'm looking inside my newly arrived SDS-IV due to a dead oscillator and
>
>I'm
> comparing it to the schematics of SDS-III. Is it just me or aren't they
> alike? There are no 3086's on the SDS-III schematics but quite a few in
>
>the
> SDS-IV...
>
> Anyone with a SDS-IV schematic around?
>
> electronically yours, jesper
> - -- --- ---- ----- ---- --- -- -
> www.electronic-obsession.se
>
> Order your own copy of the Machinepop/Imiafan
> split-EP at www.electronic-obsession.se/label.asp
>
> "Varför har du så många pianon?" (Nora Persson, 9 år)
>
>
>
>
>
>[Non-text portions of this message have been removed]
>
>
>
>
>Yahoo! Groups Links
>
>
>
>


________________________________________________________________________________________
12move ADSL: Voordelig, snel en onbeperkt internet.
Meer informatie vind je op http://adsl.12move.nl






Yahoo! Groups Links

Thanks for a short and good description!

I'll start by changing the 1458 then, will buy a bunch today... It might
have been imagination, but maybe there was some sound of the oscillating
transistorladder. It always feels good to hear that I've interpreted
something right. It's not easy for a guy who just opens the machines if
something is broken and gives up if he doesn't draw a conclusion the first
two hours. ;)

None of my local electronics dealers have the 3086. I wonder where I got the
spares I do have last time...

electronically yours, jesper
- -- --- ---- ----- ---- --- -- -
www.electronic-obsession.se

Order your own copy of the Machinepop/Imiafan
split-EP at www.electronic-obsession.se/label.asp

"Varför har du så många pianon?" (Nora Persson, 9 år)

----- Original Message -----
From: <michael.buchner@...>
To: <Simmons_Drums@yahoogroups.com>
Sent: Monday, April 02, 2007 9:56 PM
Subject: Re: [Simmons Drums] SDS-III vs SDS-IV internally


The SDS III has no tone generator. If you want to produce tone, you drive
the (original moog...) filter into self oscillation by raising the resonance
to a certain level. To understand the circuitry, call the "pitch" pot
"cutoff frequency", the "noise tone balance" is "resonance", "impact click"
is a short additional pulse on the "cutoff frequency".
In the schematics the 1485 you describe is the filter output amp. CV in is
at T2, all CV's are added there. The filters input is IC4, Pin12, the only
source of the beast is noise. Feedback is supplied by connecting the output
via the noise/tone control and R56 back to the CV input.
Michael
From: jesper@...
To: Simmons_Drums@yahoogroups.com
Sent: Monday, April 02, 2007 4:20 PM
Subject: Re: [Simmons Drums] SDS-III vs SDS-IV internally


So there _are_ 3086's... I didn't see those on the schematics. I'll gladly
take a few pictures when I dig into it again. I bet it's the same then...

But do you say that the 3086's are the tone generators so to speak? From
my
limited experience and todays values I have my suspicion set at a 1458
which
in connected to both waveform and noise/tone potentiometer.

electronically yours, jesper
- -- --- ---- ----- ---- --- -- -
www.electronic-obsession.se

Order your own copy of the Machinepop/Imiafan
split-EP at www.electronic-obsession.se/label.asp

"Varför har du så många pianon?" (Nora Persson, 9 år)

----- Original Message -----
From: <michael.buchner@...>
To: <Simmons_Drums@yahoogroups.com>
Sent: Monday, April 02, 2007 3:49 PM
Subject: Re: [Simmons Drums] SDS-III vs SDS-IV internally

Hi Jesper,
this is exactly the thing I want to know. The III is the four channel
device, as far as I know and the IV the two channel device, but the IV is
not only half III. The IV has no master section with run generator and
lfo,
but may be the single channel is also different to the III.
I repaired Wolfgangs III two month ago. It has no oscillators at all, the
tone is nothing but a resonating ladder filter, copied 1:1 from good old
bob
moog. If you turn the Noise/Tone pot to noise, the resonance is completely
off, so also the impact click will not be audible. But on my schematics of
the III there are 3 3086 per channel, these are containing transistor
arrays
to build this filter.
What I am wondering about is this pot on the IV called "Waveshape". Is
this
an osc or only an lfo? Maybe a good photo of both solder side and parts
side
would help.
Michael
----- Original Message -----
From: jesper@...
To: Simmons_Drums@yahoogroups.com
Sent: Monday, April 02, 2007 3:01 PM
Subject: [Simmons Drums] SDS-III vs SDS-IV internally

Hi List!

I'm looking inside my newly arrived SDS-IV due to a dead oscillator and
I'm
comparing it to the schematics of SDS-III. Is it just me or aren't they
alike? There are no 3086's on the SDS-III schematics but quite a few in
the
SDS-IV...

Anyone with a SDS-IV schematic around?

electronically yours, jesper
- -- --- ---- ----- ---- --- -- -
www.electronic-obsession.se

Order your own copy of the Machinepop/Imiafan
split-EP at www.electronic-obsession.se/label.asp

"Varför har du så många pianon?" (Nora Persson, 9 år)

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

Yahoo! Groups Links





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




Yahoo! Groups Links

okiedokie
BERK!

>-- Oorspronkelijk bericht --
>To: <Simmons_Drums@yahoogroups.com>
>From: <michael.buchner@...>
>Date: Mon, 2 Apr 2007 21:38:06 +0200
>Subject: Re: Re: [Simmons Drums] SDS-III vs SDS-IV internally
>Reply-To: Simmons_Drums@yahoogroups.com
>
>
>Hi Berk,
>they are already online at simmons.synth.net, watch for service scoops under
>SDSIII / IV.
>Michael
>
>
>
>
>
>Yahoo! Groups Links
>
>
>

okiedoeki

________________________________________________________________________________________
12move ADSL: Voordelig, snel en onbeperkt internet.
Meer informatie vind je op http://adsl.12move.nl

Since I just descovered that not just one (which I've already changed), but
both the bend switches had died I'll open the old one again. I bet it'll be
in factory standard when I'm finished with it with all these new components
fitted.

Maybe i'll remember your request this time. ;)

electronically yours, jesper
- -- --- ---- ----- ---- --- -- -
www.electronic-obsession.se

Order your own copy of the Machinepop/Imiafan
split-EP at www.electronic-obsession.se/label.asp

"Varför har du så många pianon?" (Nora Persson, 9 år)

----- Original Message -----
From: <michael.buchner@...>
To: <Simmons_Drums@yahoogroups.com>
Sent: Monday, April 02, 2007 3:49 PM
Subject: Re: [Simmons Drums] SDS-III vs SDS-IV internally


Hi Jesper,
this is exactly the thing I want to know. The III is the four channel
device, as far as I know and the IV the two channel device, but the IV is
not only half III. The IV has no master section with run generator and lfo,
but may be the single channel is also different to the III.
I repaired Wolfgangs III two month ago. It has no oscillators at all, the
tone is nothing but a resonating ladder filter, copied 1:1 from good old bob
moog. If you turn the Noise/Tone pot to noise, the resonance is completely
off, so also the impact click will not be audible. But on my schematics of
the III there are 3 3086 per channel, these are containing transistor arrays
to build this filter.
What I am wondering about is this pot on the IV called "Waveshape". Is this
an osc or only an lfo? Maybe a good photo of both solder side and parts side
would help.
Michael
----- Original Message -----
From: jesper@...
To: Simmons_Drums@yahoogroups.com
Sent: Monday, April 02, 2007 3:01 PM
Subject: [Simmons Drums] SDS-III vs SDS-IV internally


Hi List!

I'm looking inside my newly arrived SDS-IV due to a dead oscillator and
I'm
comparing it to the schematics of SDS-III. Is it just me or aren't they
alike? There are no 3086's on the SDS-III schematics but quite a few in
the
SDS-IV...

Anyone with a SDS-IV schematic around?

electronically yours, jesper
- -- --- ---- ----- ---- --- -- -
www.electronic-obsession.se

Order your own copy of the Machinepop/Imiafan
split-EP at www.electronic-obsession.se/label.asp

"Varför har du så många pianon?" (Nora Persson, 9 år)





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




Yahoo! Groups Links