DUAL CHANNEL STEREO MIXER

See Elby for further build information.

Follows some build instructions and BOM, please check BOM is correct before ordering.

I advise using 2K7 in place of the 5K6 as otherwise the gain can be pretty crazy, YMMV etc etc

Don’t forget to link pads LK, like I do EVERY time…

Here is a Mouser BOM for the main CGS101 board, the four CGS108 Gain Cells and the two CGS102 Equal Power Panner boards:

271-100-RC | 4
271-330-RC | 12
271-5.6K-RC | 4
271-6.8K-RC | 2
271-8.2K-RC | 8
271-10K-RC | 2
271-13K-RC | 8
271-33K-RC | 6
271-47K-RC | 4
271-82K-RC | 4
271-100K-RC | 47
271-110K-RC | 4
271-150K-RC | 14
271-220K-RC | 6
271-330K-RC | 16
270-1.5M-RC | 4
652-3362P-1-104LF | 4
810-FK28C0G1H050C | 4
810-FG28C0G1H470JNT0 | 6
80-C0805C470J5G | 8
810-FK28C0G1H820J | 4
810-FK28C0G1H103J | 8
80-C0805C103J5G | 2
581-08055C104K | 2
871-B32529C224K | 4
667-ECA-1EM100 | 2
512-BC547CTA | 8
512-BC557BTA | 8
512-1N4148 | 12
623-2743001112LF | 2
595-TL071CP | 2
595-TL072IP | 4
595-TL074CN | 3
575-144308 | 6
649-DILB14P-223TLF | 5
530-108-0910-1 | 4
530-108-0903-1 | 6

This does not include:

LM3046
KNOBS
POTS
POWER HEADER / CONNECTOR
HARDWARE (NUTS, BOLTS ETC)
WIRE
SIL HEADERS / CONNECTORS
1/4″ SOCKETS
CLEE 4U BRACKET
PANEL
PCB SET

Which I purchase elsewhere. It does include sockets for all ICs. Remember you should match the 547’s and 557’s in the gain cells, so you may want to buy more than listed. The BOM does include the banana sockets.

 

UNIVERSAL EQUAL POWER AUDIO PROCESSOR

The CGS101 PCB can be built as the UEPAP:

Using this wiring diagram – don’t forget the pads LK-LK, also note the shielded wires for the inputs. You could use normal wire here if you like, up to you really.