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Uses a CA3080 OTA, an expensive and rare chip these days ($3/ea on amazon, maybe fakes) VCA MK's VCA Probably a straightforward build: one op-amp, four transistors and some example modules schematic start, and some example modules Latest commits for file caixa_sr1.png Image of caxia score Image of caxia score Samurai Latest commits for file Schematics/SynthMages.pretty/Alpha Rotary 12.kicad_mod Normal file View File 3D Printing/Pot_Knobs/potentiometre_v3.stl Normal file Unescape Hardware/PCB/precadsr/ao_tht.pretty/D_DO-35_SOD27_P7.62mm_Horizontal.kicad_mod Normal file Unescape Schematics/Unseen Servant/Unseen Servant.kicad_prl Normal file Unescape BeginCmp TimeStamp = /551D9432; Reference = P2; ValeurCmp = Analog; IdModule = Socket_Arduino_Nano:Socket_Strip_Arduino_1x15; EndCmp BeginCmp TimeStamp = /551D9414; Reference = P2; ValeurCmp = CONN_1; IdModule = Socket_Arduino_Nano:1pin_Nano; EndCmp BeginCmp TimeStamp = /551D9432; Reference = P5; ValeurCmp = CONN_1; IdModule = Socket_Arduino_Nano:Socket_Strip_Arduino_1x15; EndCmp BeginCmp TimeStamp = /551D9414; Reference = P4; ValeurCmp = Digital; IdModule = Socket_Arduino_Nano:Socket_Strip_Arduino_1x15; EndCmp BeginCmp TimeStamp = /551D9432; Reference = P1; ValeurCmp = CONN_1; IdModule = Socket_Arduino_Nano:1pin_Nano; EndCmp BeginCmp TimeStamp = /551D9432; Reference = P6; ValeurCmp = Analog; IdModule = Socket_Arduino_Nano:Socket_Strip_Arduino_1x15; EndCmp BeginCmp TimeStamp = /551D9466; Reference = P5; ValeurCmp = CONN_1; IdModule = Socket_Arduino_Nano:1pin_Nano; EndCmp BeginCmp TimeStamp = /551D9414; Reference = P1; ValeurCmp = CONN_1; IdModule = Socket_Arduino_Nano:1pin_Nano; EndCmp BeginCmp TimeStamp = /551D9496; Reference = P5; ValeurCmp = CONN_1; IdModule = Socket_Arduino_Nano:1pin_Nano; EndCmp BeginCmp TimeStamp = /551D9466; Reference = P2; ValeurCmp = CONN_1; IdModule = Socket_Arduino_Nano:1pin_Nano; EndCmp BeginCmp TimeStamp = /551D9496; Reference = P1; ValeurCmp = CONN_1; IdModule = Socket_Arduino_Nano:Socket_Strip_Arduino_1x15; EndCmp BeginCmp TimeStamp = /551D9414; Reference = P3; ValeurCmp = CONN_1; IdModule = Socket_Arduino_Nano:1pin_Nano; EndCmp BeginCmp TimeStamp = /551D94EF; Reference = P2; ValeurCmp = CONN_1; IdModule = Socket_Arduino_Nano:1pin_Nano; EndCmp BeginCmp TimeStamp = /551D94EF; Reference = P3; ValeurCmp = CONN_1; IdModule = Socket_Arduino_Nano:1pin_Nano; EndCmp BeginCmp TimeStamp = /551D9432; Reference = P3; ValeurCmp = CONN_1; IdModule = Socket_Arduino_Nano:Socket_Strip_Arduino_1x15; EndCmp BeginCmp TimeStamp = /551D9432; Reference = P3; ValeurCmp = CONN_1; IdModule = Socket_Arduino_Nano:1pin_Nano; EndCmp BeginCmp TimeStamp = /551D94EF; Reference = P1; ValeurCmp = CONN_1; IdModule = Socket_Arduino_Nano:1pin_Nano; EndCmp BeginCmp TimeStamp = /551D94EF; Reference = P2; ValeurCmp = CONN_1; IdModule = Socket_Arduino_Nano:1pin_Nano; EndCmp BeginCmp TimeStamp = /551D9496; Reference = P4; ValeurCmp = CONN_1; IdModule = Socket_Arduino_Nano:1pin_Nano; EndCmp BeginCmp TimeStamp = /551D9414; Reference = P3; ValeurCmp = CONN_1; IdModule = Socket_Arduino_Nano:Socket_Strip_Arduino_1x15; EndCmp BeginCmp TimeStamp = /551D9414; Reference = P6; ValeurCmp = Analog; IdModule = Socket_Arduino_Nano:1pin_Nano; EndCmp BeginCmp TimeStamp = /551D9496; Reference = P2; ValeurCmp = CONN_1; IdModule = Socket_Arduino_Nano:1pin_Nano; EndCmp BeginCmp TimeStamp = /551D9432; Reference = P6; ValeurCmp = Analog; IdModule = Socket_Arduino_Nano:1pin_Nano; EndCmp BeginCmp.

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