VC ADSR ttt

 
 

 

IN STOCK

 

Analogue constant slope dual VC ADSR.

 

 

L-1 VC ADSR. Analogue constant slope dual VC ADSR. The circuit is based on Envylope schematic by Aaron Cram. The circuit is completely analog, no timers, logic chips etc., only transistors and opamps.

 

  • Two identical ADSR generators.
  • Attack range 0.1ms - 10s.
  • Decay and Release ranges 0.5ms - 20s.
  • Constant slope action.
  • 4 state leds show each step of the ADSR.
  • Linear or exponential slopes with separate switches for attack and decay/release.
  • Voltage control on each stage and output amplitude.
  • Sustain gate output produces gates during sustain time.
  • Trigger input resets the envelope.

 

 

Power consumption: V+ 77mA, V- 77mA.

 

 

PCB - 2mm thickness, gold platted, black mask. $35

Two panels - 22HP front & back. Anodized alu, black print. $40

SMD parts + soldering. $15

4 tempco resistors $6

Shipping per set: $5 - only boards, $8 - boards+panels.

 

TOTAL for complete set with shipping: $104

 

Skrill: info(at)greenexpo.by

Paypal: info(at)greenexpo.by

 

Assembled module $380 + $15 shipping.

 

MUFFWIGGLER forum thread http://www.muffwiggler.com/forum/viewtopic.php?t=94991

 

 

 

L-1 Dual VC ADSR in action:

 

 

 

 

Documents:

 

Partslist.

 

Trimming.

 

PCB top.

 

PCB bottom.

 

Front panel.

 

Back panel.

 

 

SHOPPING CARTS :

 

 

L-1 Dual VCADSR - Mouser shopping cart https://ca.mouser.com/ProjectManager/ProjectDetail.aspx?AccessID=55a9bd8f8f
MERCHANDISE TOTAL: $83.15 (USD)

 

Parts not included in Mouser shopping carts:

 

8 potentiometers
8 knobs

 

Where to buy?

 

1. Thonk:
pots: http://www.thonk.co.uk/shop/alpha-9mm-pots/
knobs: http://www.thonk.co.uk/shop/synth-pointer-knobs/

 

2. Erthenvar:
pots: http://erthenvar.com/store/accessories/pots/9mm-vertical-pots

 

3. Smallbear:
pots: http://smallbear-electronics.mybigcommerce.com/alpha-single-gang-9mm-right-angle-pc-mount/
knobs: http://smallbear-electronics.mybigcommerce.com/synth-pointer-2-colors/

 

4. Tayda:
pots: http://www.taydaelectronics.com/potentiometer-variable-resistors/rotary-potentiometer/linear/10k-ohm-linear-taper-potentiometer-round-shaft-pcb-9mm.html

 

Jacks.

 

I included into Mouser shopping cart 20 Kobiconn jacks. But they need to solder a leg for ground connection.
Better choise is Inline jacks:

 

1. Thonk: http://www.thonk.co.uk/shop/thonkiconn-3-5mm-jack-sockets-x50/

 

2. Erthenvar: http://erthenvar.myshopify.com/products/3-5mm-inline-jacks

 

 

THAT chips on Etsy:

 

https://www.etsy.com/shop/RockmoreLabs?section_id=17400134

 

 

 

 
 

(c) 2015 L-1 Synhesizer. E-mail: info@greenexpo.by