New ADSR / LPG card for 208 : The Stoned Marten
- papz
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New ADSR / LPG card for 208 : The Stoned Marten
Hi
Here's a new card to expand the 208 with a VC looping ADSR enveloppe, a Lo Pass Gate, a preamp and an output mixer.
The switches will give you the ability to instantly turn on, off and mix various signals to trigger the ADSR and open the LPG, and you’ll can shape and put life into your patches thanks to the CV inputs controlling each setting.
This opens up countless modulation variations.
It's an ideal companion for the VCS3 Card or Triglav's Radio Receiver one to add a full 3rd voice.
Todd Barton kindly did nice videos explaining the card's features and demos.
Here's his playlist, thank you Todd !
ADSR
LED : monitors the ADSR output
Pots
Attack : sets the attack time
Decay : sets the decay time
Sustain : sets the sustain amplitude
Release : sets the release time
Black banana CV inputs - each with attenuator trimmer
Attack : controls the attack time
Decay : controls the decay time
Sustain : controls either the sustain amplitude or the pulse length (see below), selected with a mini slide switch
Release : controls the release time
Trigger source
Red banana : pulse input
Length pot : sets the input pulse length - I don't think this is a common feature on standard ADSR, it is to adapt the pulse length for best response to various trigger and gate sources or to create variations in a sequence, it can be voltage contolled via the sustain black banana
Seq / puls switch : selects if the 208's pulse sequence switches or pulser triggers the envelope, central position is off, it can be mixed with the red banana pulse input
Self switch : switch it to the right to enable looping
LED : monitors the retrig pulse
Black banana : CV input to the retrig pulse delay
Pot : pulse delay
Orange banana outputs
Out : ADSR CV output
Inv. out : ADSR CV inverted output (negative voltage)
Switch : connects either the output or inverted output to the LPG level input, central position is off
LPG
Level
Left pot : sets the CV input amplitude
Right : sets the amplitude manually
LED : monitors the LPG opening
Black banana : CV input
Env / puls switch : selects if the 208's envelope or pulser controls the LPG level, central position is off, it can be mixed with the ADSR out / inv. out switch and CV input
Mode select
Switch : selects LPF combination or VCA mode
Black banana : mode CV input - with attenuator trimmer
Preamp
Signal in tinijax : signal input to the LPG
Gain switch : switch to adapt the preamp gain according to the incoming signal amplitude
Phase : switch tho the right (inv) position to invert the incoming signal phase
Output section
Channel C pot : sets the LPG output amplitude to the output mixer
Signal out : LPG and mixer output
Signal in : input to the mixer to patch one of the 208's signal outputs in order to have a single mixed signal of the 3 LPGs at the mixer output, if nothing's patched to this input, the card's LPG output only is present at the signal output which can be patched on its own directly to a mixer or effect or other module
As an option, the LPG output can also be connected via a mini slide switch directly to 208's output section via the edge connector with a small easy modification of the 208 (not the 208c as I think that unlike other revisions, there's no contact left available on the connector).
The card will be first available pre-built only for 500€ VAT and shipping excl.
Please PM or email me to join the waiting list.
The PCB set will be available for DIY later.
Thanks for watching !
Here's a new card to expand the 208 with a VC looping ADSR enveloppe, a Lo Pass Gate, a preamp and an output mixer.
The switches will give you the ability to instantly turn on, off and mix various signals to trigger the ADSR and open the LPG, and you’ll can shape and put life into your patches thanks to the CV inputs controlling each setting.
This opens up countless modulation variations.
It's an ideal companion for the VCS3 Card or Triglav's Radio Receiver one to add a full 3rd voice.
Todd Barton kindly did nice videos explaining the card's features and demos.
Here's his playlist, thank you Todd !
ADSR
LED : monitors the ADSR output
Pots
Attack : sets the attack time
Decay : sets the decay time
Sustain : sets the sustain amplitude
Release : sets the release time
Black banana CV inputs - each with attenuator trimmer
Attack : controls the attack time
Decay : controls the decay time
Sustain : controls either the sustain amplitude or the pulse length (see below), selected with a mini slide switch
Release : controls the release time
Trigger source
Red banana : pulse input
Length pot : sets the input pulse length - I don't think this is a common feature on standard ADSR, it is to adapt the pulse length for best response to various trigger and gate sources or to create variations in a sequence, it can be voltage contolled via the sustain black banana
Seq / puls switch : selects if the 208's pulse sequence switches or pulser triggers the envelope, central position is off, it can be mixed with the red banana pulse input
Self switch : switch it to the right to enable looping
LED : monitors the retrig pulse
Black banana : CV input to the retrig pulse delay
Pot : pulse delay
Orange banana outputs
Out : ADSR CV output
Inv. out : ADSR CV inverted output (negative voltage)
Switch : connects either the output or inverted output to the LPG level input, central position is off
LPG
Level
Left pot : sets the CV input amplitude
Right : sets the amplitude manually
LED : monitors the LPG opening
Black banana : CV input
Env / puls switch : selects if the 208's envelope or pulser controls the LPG level, central position is off, it can be mixed with the ADSR out / inv. out switch and CV input
Mode select
Switch : selects LPF combination or VCA mode
Black banana : mode CV input - with attenuator trimmer
Preamp
Signal in tinijax : signal input to the LPG
Gain switch : switch to adapt the preamp gain according to the incoming signal amplitude
Phase : switch tho the right (inv) position to invert the incoming signal phase
Output section
Channel C pot : sets the LPG output amplitude to the output mixer
Signal out : LPG and mixer output
Signal in : input to the mixer to patch one of the 208's signal outputs in order to have a single mixed signal of the 3 LPGs at the mixer output, if nothing's patched to this input, the card's LPG output only is present at the signal output which can be patched on its own directly to a mixer or effect or other module
As an option, the LPG output can also be connected via a mini slide switch directly to 208's output section via the edge connector with a small easy modification of the 208 (not the 208c as I think that unlike other revisions, there's no contact left available on the connector).
The card will be first available pre-built only for 500€ VAT and shipping excl.
Please PM or email me to join the waiting list.
The PCB set will be available for DIY later.
Thanks for watching !
Last edited by papz on Wed Jan 18, 2023 1:17 pm, edited 15 times in total.
Finest EMS gear service and 208 goodies
I'm not a synths dealer and don't know of any cheap Synthi secret market.
I don't offer support for attempts to build clones of EMS equipment.
Please don't ask, thanks.
I'm not a synths dealer and don't know of any cheap Synthi secret market.
I don't offer support for attempts to build clones of EMS equipment.
Please don't ask, thanks.
Re: New ADSR / LPG card for 208
Great job Papz!
- chrisdermo
- Super Deluxe Wiggler
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- Joined: Sun May 20, 2012 1:52 pm
Re: New ADSR / LPG card for 208
Yowza! What a great card!
- papz
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Re: New ADSR / LPG card for 208
Thanks guys !
Finest EMS gear service and 208 goodies
I'm not a synths dealer and don't know of any cheap Synthi secret market.
I don't offer support for attempts to build clones of EMS equipment.
Please don't ask, thanks.
I'm not a synths dealer and don't know of any cheap Synthi secret market.
I don't offer support for attempts to build clones of EMS equipment.
Please don't ask, thanks.
- chrisdermo
- Super Deluxe Wiggler
- Posts: 1047
- Joined: Sun May 20, 2012 1:52 pm
Re: New ADSR / LPG card for 208
If I had the cash I'd be seriously considering a second 208 to house another hub and set of cards
Re: New ADSR / LPG card for 208
Congrats, Papz! I'm down for one 

Re: New ADSR / LPG card for 208 : The Stoned Marten
Cool name too (The Stoned Marten)! 

Re: New ADSR / LPG card for 208 : The Stoned Marten
Thanks! Looking forward to the PCB set.
-
- Learning to Wiggle
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Re: New ADSR / LPG card for 208 : The Stoned Marten
This looks way cool! Nice work!
Re: New ADSR / LPG card for 208 : The Stoned Marten
Oooh! This looks fantastic!
- papz
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Re: New ADSR / LPG card for 208 : The Stoned Marten

Finest EMS gear service and 208 goodies
I'm not a synths dealer and don't know of any cheap Synthi secret market.
I don't offer support for attempts to build clones of EMS equipment.
Please don't ask, thanks.
I'm not a synths dealer and don't know of any cheap Synthi secret market.
I don't offer support for attempts to build clones of EMS equipment.
Please don't ask, thanks.
- mano 1
- Wiggling with Experience
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Re: New ADSR / LPG card for 208 : The Stoned Marten
You’re a wizard!


Peake: Get off my lawn ya damn kids why back in my day we had to climb a mountain in a snowstorm and fight wolf packs just to catch a glimpse of a vactrol
beedeesmith: I just offered Symbolic Sound the burnt offerings of my Visa card as dark tribute for a Pacamara as I’m too squeamish to do a blood sacrifice
Eric Fox Buchla CEO: Please send all complaints to: support@korg.com
elmerfudd: Perversion I say. The ghost of Don should brick your I2C bus. e should have Selcos like the creator untended
beedeesmith: I just offered Symbolic Sound the burnt offerings of my Visa card as dark tribute for a Pacamara as I’m too squeamish to do a blood sacrifice
Eric Fox Buchla CEO: Please send all complaints to: support@korg.com
elmerfudd: Perversion I say. The ghost of Don should brick your I2C bus. e should have Selcos like the creator untended
- papz
- Super Deluxe Wiggler
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- Location: in a suitcase
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Re: New ADSR / LPG card for 208 : The Stoned Marten
Thanks
Can't wait for Todd's Demo
Can't wait for Todd's Demo

Finest EMS gear service and 208 goodies
I'm not a synths dealer and don't know of any cheap Synthi secret market.
I don't offer support for attempts to build clones of EMS equipment.
Please don't ask, thanks.
I'm not a synths dealer and don't know of any cheap Synthi secret market.
I don't offer support for attempts to build clones of EMS equipment.
Please don't ask, thanks.
- antiformant
- Learning to Wiggle
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Re: New ADSR / LPG card for 208 : The Stoned Marten
This looks fantastic! Just saw Todd's demo today and can see how this would be a really awesome addition to any 208 setup 

- papz
- Super Deluxe Wiggler
- Posts: 4224
- Joined: Sat May 18, 2013 6:52 pm
- Location: in a suitcase
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Re: New ADSR / LPG card for 208 : The Stoned Marten

Finest EMS gear service and 208 goodies
I'm not a synths dealer and don't know of any cheap Synthi secret market.
I don't offer support for attempts to build clones of EMS equipment.
Please don't ask, thanks.
I'm not a synths dealer and don't know of any cheap Synthi secret market.
I don't offer support for attempts to build clones of EMS equipment.
Please don't ask, thanks.
- Radiance2021
- Wiggling with Experience
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- Radiance2021
- Wiggling with Experience
- Posts: 392
- Joined: Wed Jan 15, 2020 2:24 pm
- Location: Netherlands
Re: New ADSR / LPG card for 208 : The Stoned Marten
The Stoned Marten? ....sup with that?
- papz
- Super Deluxe Wiggler
- Posts: 4224
- Joined: Sat May 18, 2013 6:52 pm
- Location: in a suitcase
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Re: New ADSR / LPG card for 208 : The Stoned Marten
Enjoy your food 

Finest EMS gear service and 208 goodies
I'm not a synths dealer and don't know of any cheap Synthi secret market.
I don't offer support for attempts to build clones of EMS equipment.
Please don't ask, thanks.
I'm not a synths dealer and don't know of any cheap Synthi secret market.
I don't offer support for attempts to build clones of EMS equipment.
Please don't ask, thanks.
Re: New ADSR / LPG card for 208 : The Stoned Marten
Sign me up for DIY/PCB when it becomes available!
Thanks papz!
Thanks papz!
Re: New ADSR / LPG card for 208 : The Stoned Marten
Looks interesting! I thought about a little case where i would put your hub in, connected via a ribbon cable. Did anyone build this already? I love the cards but i would like to have them kind of external.