VC Stereo Mixer ttt

 
 

 

IN STOCK

 

VC Stereo Mixer THAT 2180 based.

 

 

  • 4 stereo channels with voltage controlled level and panorama.
  • Voltage controlled sum out level.
  • Stereo level bar graph, 10 LEDs per channel.
  • Headphones out.
  • Mute buttons expander available http://l-1.su/Mute.html.
  • Audio signal flows only through VCA chips and summing amps (single opamp for left and for right), all controls through CV.
  • Power consumption: V+ 110mA, V- 93mA.

 

2 PCB - 2mm thickness, gold platted, black mask. $35 x 2 = $70

 

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

 

SMD parts + soldering. $15

 

13 tempco resistors $20

 

Standoffs, connectors.

 

Shipping per set: $5 - only boards, $10 - boards+panels.

 

TOTAL for complete set with shipping: $155

 

Paypal: info(at)greenexpo.by

 

Assembled module $590 + $20 shipping.

 

MUFFWIGGLER forum thread http://www.muffwiggler.com/forum/viewtopic.php?t=82162

 

Documents:

 

Partslist PCB1.

 

Partslist PCB2.

 

Trimming.

 

Front panel.

 

Back panel.

 

 

SHOPPING CARTS :

 

MOUSER SHOPPING CART. MERCHANDISE TOTAL: $130.56 (USD)

 

Parts not included in Mouser shopping carts:

 

- potentiometers
- 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/50k-ohm-linear-taper-potentiometer-round-shaft-pcb-9mm.html

 

Jacks.

 

I included into Mouser shopping cart 8 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

 

Warning!

 

Some cheap LEDs have bad legs isolation at the cap, and they may short to the panel. Check conductivity in a place where LED touch the panel before installing.

 

 

 

Use a washer for 10mm standoffs:

 

 

 

 

Kit:

 

 

Richard Brewster's assembly report:

http://pugix.com/synth/l-1-stereo-vc-mixer/

 

Photos:

 

 

 

 

Scope shot: panorama modulated by triangle:

 

 

 

 

 
 

(c) 2012 L-1 Synhesizer. E-mail: info@greenexpo.by