Audio Mixer

This is a simple audio mixer using an fet.

Schematic

Audio Mixer

Bill of materials

QTY  PART-REFS           VALUE                                       
---  ---------           -----                                        
Resistors
---------
1    R1                  6.8k                                              
2    R2,R3               100k                                              

Capacitors
----------
3    C1-C3               0.1uF                                             

Transistors
-----------
1    Q1                  2N3819                                            

Miscellaneous
-------------
2    RV1,RV2             10k