IN STOCK
Analogue constant slope dual VC ADSR.
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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
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.
Front 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. 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/
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/
(c) 2015 L-1 Synhesizer. E-mail: info@greenexpo.by