# Active Di ## Description Welcome to your new project. Imagine what you can build here. ## Project Details - **Owner:** jakey0101 - **Created:** 7/21/2026 - **Last Updated:** 7/22/2026 - **Visibility:** Public - **Copies:** 1 ## Key Components ### D_IN_CLAMP — [BAV199LT1G](https://www.flux.ai/lcsc/bav199lt1g~4rlm.md) - Product Info Url: https://lcsc.com/product-detail/Diodes-General-Purpose_ON_BAV199LT1G_BAV199LT1G_C145516.html - JLCPCB Part Class: Extended Part - Manufacturer Part Number: BAV199 - Part Type: Diodes - General Purpose - Datasheet URL: https://storage.googleapis.com/graviton-electric-symbols/document_assets/lcsc/2410010303_onsemi-BAV199LT1G_C145516.pdf - Role: Clamping - Role Details: Optional/DNP-capable input rail clamp; pin 1 -15V_A, pin 2 +15V_A, pin 3 IN_PROTECTED per supplied spec - Package or Case Code: SOT-23_L2.9-W1.3-P1.90-LS2.4-BR - Manufacturer Name: onsemi(安森美) - LCSC Part Number: C145516 **Pins:** - A [pin 1] - C [pin 2] - C/A [pin 3] ### D_LINE_N_DN — [1N4004-TP](https://www.flux.ai/lcsc/1n4004-tp~f5sa.md) - Product Info Url: https://lcsc.com/product-detail/Diodes-General-Purpose_MCC-Micro-Commercial-Components-MCC-1N4004-TP_C914228.html - Role: Clamping - Manufacturer Part Number: 1N4004-E3/54 - Part Type: Diodes - General Purpose - JLCPCB Part Class: Extended Part - Role Details: LINE_OUT_N negative rail clamp; DO-41 footprint substitute - Manufacturer Name: MCC(美微科) - Package or Case Code: DO-41_BD2.4-L4.7-P8.70-D0.9-RD - LCSC Part Number: C914228 - Datasheet URL: https://storage.googleapis.com/graviton-electric-symbols/document_assets/lcsc/2011031637_MCC-Micro-Commercial-Components-1N4004-TP_C914228.pdf **Pins:** - A [pin 2] - K [pin 1] ### D_LINE_N_UP — [1N4004-TP](https://www.flux.ai/lcsc/1n4004-tp~f5sa.md) - Manufacturer Name: MCC(美微科) - Package or Case Code: DO-41_BD2.4-L4.7-P8.70-D0.9-RD - Role Details: LINE_OUT_N positive rail clamp; DO-41 footprint substitute - Datasheet URL: https://storage.googleapis.com/graviton-electric-symbols/document_assets/lcsc/2011031637_MCC-Micro-Commercial-Components-1N4004-TP_C914228.pdf - LCSC Part Number: C914228 - Product Info Url: https://lcsc.com/product-detail/Diodes-General-Purpose_MCC-Micro-Commercial-Components-MCC-1N4004-TP_C914228.html - Manufacturer Part Number: 1N4004-E3/54 - Role: Clamping - Part Type: Diodes - General Purpose - JLCPCB Part Class: Extended Part **Pins:** - A [pin 2] - K [pin 1] ### D_LINE_P_DN — [1N4004-TP](https://www.flux.ai/lcsc/1n4004-tp~f5sa.md) - Product Info Url: https://lcsc.com/product-detail/Diodes-General-Purpose_MCC-Micro-Commercial-Components-MCC-1N4004-TP_C914228.html - Role Details: LINE_OUT_P negative rail clamp; DO-41 footprint substitute - Manufacturer Part Number: 1N4004-E3/54 - JLCPCB Part Class: Extended Part - Part Type: Diodes - General Purpose - Manufacturer Name: MCC(美微科) - Package or Case Code: DO-41_BD2.4-L4.7-P8.70-D0.9-RD - Datasheet URL: https://storage.googleapis.com/graviton-electric-symbols/document_assets/lcsc/2011031637_MCC-Micro-Commercial-Components-1N4004-TP_C914228.pdf - LCSC Part Number: C914228 - Role: Clamping **Pins:** - A [pin 2] - K [pin 1] ### D_LINE_P_UP — [1N4004-TP](https://www.flux.ai/lcsc/1n4004-tp~f5sa.md) - Manufacturer Part Number: 1N4004-E3/54 - Product Info Url: https://lcsc.com/product-detail/Diodes-General-Purpose_MCC-Micro-Commercial-Components-MCC-1N4004-TP_C914228.html - Role: Clamping - Part Type: Diodes - General Purpose - JLCPCB Part Class: Extended Part - Package or Case Code: DO-41_BD2.4-L4.7-P8.70-D0.9-RD - Manufacturer Name: MCC(美微科) - Role Details: LINE_OUT_P positive rail clamp; DO-41 footprint substitute - LCSC Part Number: C914228 - Datasheet URL: https://storage.googleapis.com/graviton-electric-symbols/document_assets/lcsc/2011031637_MCC-Micro-Commercial-Components-1N4004-TP_C914228.pdf **Pins:** - A [pin 2] - K [pin 1] ### FB_TRS_RING — [FCM2012HF-202T02](https://www.flux.ai/lcsc/fcm2012hf-202t02~ivod.md) - Package or Case Code: L0805 - LCSC Part Number: C155075 - Role: Choke (EMI Filter) - Part Type: Ferrite Beads - Manufacturer Name: TAI-TECH(台庆) - Manufacturer Part Number: FCM2012HF-202T02 - Role Details: Matched ferrite placeholder; exact MPN NEEDS_REVIEW - Datasheet URL: https://storage.googleapis.com/graviton-electric-symbols/document_assets/lcsc/2009171306_TAI-TECH-FCM2012HF-202T02_C155075.pdf - JLCPCB Part Class: Extended Part - Product Info Url: https://lcsc.com/product-detail/Ferrite-Beads-And-Chips_2KR-25-at100MHz_C155075.html **Pins:** - 1 [pin 1] - 2 [pin 2] ### FB_TRS_TIP — [FCM2012HF-202T02](https://www.flux.ai/lcsc/fcm2012hf-202t02~ivod.md) - LCSC Part Number: C155075 - Role: Choke (EMI Filter) - Package or Case Code: L0805 - Role Details: Matched ferrite placeholder; exact MPN NEEDS_REVIEW - Manufacturer Name: TAI-TECH(台庆) - Part Type: Ferrite Beads - JLCPCB Part Class: Extended Part - Product Info Url: https://lcsc.com/product-detail/Ferrite-Beads-And-Chips_2KR-25-at100MHz_C155075.html - Datasheet URL: https://storage.googleapis.com/graviton-electric-symbols/document_assets/lcsc/2009171306_TAI-TECH-FCM2012HF-202T02_C155075.pdf - Manufacturer Part Number: FCM2012HF-202T02 **Pins:** - 1 [pin 1] - 2 [pin 2] ### J_IN — [NMJ4HCD2](https://www.flux.ai/adrian95/nmj4hcd2~rzz.md) - Datasheet URL: https://www.mouser.com/datasheet/2/289/NUAG_S_A0000255840_1-2522114.pdf - Role Details: Instrument input jack; tip hardwired to thru, sleeve to A0_INPUT - License: https://creativecommons.org/licenses/by/4.0/ - Manufacturer Part Number: NMJ4HCD2 - Part Type: Connector - Manufacturer Name: Neutrik - Role: Input Connector **Pins:** - S [pin 3] - SN [pin 2] - T [pin 4] - TN [pin 1] ### J_MAINS — [DB126V-5.0-3P-GN](https://www.flux.ai/jharwinbarrozo/db126v-5p0-3p-gn~6j.md) - Part Type: Connector - Role Details: Placeholder for filtered C14 inlet/switch/fuse; PE bonds directly to chassis stud - License: https://creativecommons.org/licenses/by/4.0/ - Role: Connector - Datasheet URL: https://datasheet.lcsc.com/lcsc/1912111437_DIBO-DB126V-5-0-3P-GN_C395850.pdf - Manufacturer Part Number: FFSAS02BFR - Manufacturer Name: XP Power **Pins:** - PIN1 [pin 1] - PIN2 [pin 2] - PIN3 [pin 3] ### J_THRU — [NMJ4HCD2](https://www.flux.ai/adrian95/nmj4hcd2~rzz.md) - License: https://creativecommons.org/licenses/by/4.0/ - Datasheet URL: https://www.mouser.com/datasheet/2/289/NUAG_S_A0000255840_1-2522114.pdf - Role: Thru Connector - Role Details: Hardwired passive thru jack; remains usable unpowered - Part Type: Connector - Manufacturer Name: Neutrik - Manufacturer Part Number: NMJ4HCD2 **Pins:** - S [pin 3] - SN [pin 2] - T [pin 4] - TN [pin 1] ### J_TRS — [SJ3-350144A-TR-X7](https://www.flux.ai/cherepanyadima/sj3-350144a-tr-x7~83.md) - Manufacturer Part Number: NJ3FP6C-BAG - Role: Connector - Part Type: Connectors - Mount: Panel - Datasheet URL: https://www.sameskydevices.com/product/resource/sj3-350144a-tr-x7.pdf - Manufacturer Name: Neutrik - Role Details: Placeholder for isolated 1/4 inch TRS line output; tip OUT+, ring OUT-, sleeve chassis **Pins:** - RING1 [pin 3] - RING2 [pin 4] - SHIELD [pin SH2] - SHIELD [pin SH1] - SLEEVE [pin 1] - TIP_2 [pin 2] - TIP_5 [pin 5] ### J_XLR — [NC3MAH](https://www.flux.ai/adrian95/nc3mah~osp.md) - Connector Type: XLR Connector - Manufacturer Part Number: NC3MD-LX-B - Datasheet URL: https://www.neutrik.com/en/product/nc3mah - Role Details: XLR mic output; pin 1 to chassis, pins 2/3 from polarity switch - License: https://creativecommons.org/licenses/by/4.0/ - Manufacturer Name: Neutrik - Role: Connector - Connector Gender: Male Receptacle - Part Type: Connector **Pins:** - 1 [pin 1] - 2 [pin 2] - 3 [pin 3] - G1 [pin G1] ### PSU1 — [RAC10-15DK/277](https://www.flux.ai/adrian95/rac10-15dk277.md) - Datasheet URL: https://www.recom-power.com/pdf/Powerline_AC-DC/RAC10-K_277.pdf - License: https://creativecommons.org/licenses/by/4.0/ - Manufacturer Part Number: RACM30-15DK/277/OF - Role Details: Placeholder for received open-frame ±15 V PSU; exact RACM30 footprint/clearance NEEDS_REVIEW - Part Type: Power supply - Role: Power Conversion - Manufacturer Name: RECOM **Pins:** - -VOUT [pin 3] - +VOUT [pin 5] - COM [pin 4] - VAC_IN_(L) [pin 2] - VAC_IN_(N) [pin 1] ### RV_LEVEL — [RK27112A00CC](https://www.flux.ai/lcsc/rk27112a00cc~gmvd.md) - Part Type: Variable Resistors/Potentiometers - JLCPCB Part Class: Extended Part - Role Details: Dual audio taper gangs paralleled: tops LEVEL_TOP, bottoms A0, wipers LEVEL_WIPER - Datasheet URL: https://storage.googleapis.com/graviton-electric-symbols/document_assets/lcsc/1912111437_ALPSALPINE-RK27112A00CC_C380210.pdf - Product Info Url: https://lcsc.com/product-detail/New-Arrivals_ALPS-Electric-RK27112A00CC_C380210.html - LCSC Part Number: C380210 - Role: Voltage Division - Manufacturer Part Number: RK27112A00CF - Package or Case Code: RES-ADJ-TH_RK27112A00CC - Manufacturer Name: Alps Alpine - Resistance: 50kΩ per gang **Pins:** - 1 [pin 1] - 2 [pin 2] - 3 [pin 3] - 4 [pin 4] - 5 [pin 5] - 6 [pin 6] ### SW_HPF — [R20307RN02Q](https://www.flux.ai/adrian95/r20307rn02q~9s6.md) - Role: Switching - Manufacturer Part Number: 56D30-01-2-AJN - Package or Case Code: R10815RS02Q - Role Details: Placeholder for two-pole nonshorting HPF capacitor selector, adjustable stop set to three positions - Part Type: Switch - License: https://creativecommons.org/licenses/by/4.0/ - Datasheet URL: https://www.ckswitches.com/media/1351/r.pdf - Manufacturer Name: Grayhill **Pins:** - 1 [pin 1] - 10 [pin 10] - 2 [pin 2] - 3 [pin 3] - 4 [pin 4] - 5 [pin 5] - 6 [pin 6] - 7 [pin 7] - 8 [pin 8] - 9 [pin 9] ### SW_POL — [7201MD9ABE](https://www.flux.ai/jecstronic/7201md9abe~at1.md) - Datasheet URL: https://www.ckswitches.com/media/1394/7000toggle.pdf - Role: Switching - Role Details: XLR secondary polarity reversal; pin 1/shields never switched - Manufacturer Name: E-Switch - Part Type: Switch - Manufacturer Part Number: 100DP1T1B1M1QE - License: https://creativecommons.org/licenses/by/4.0/ **Pins:** - COM_1 [pin 2] - COM_2 [pin 5] - MH1 [pin MH1] - MH2 [pin MH2] - NC_1 [pin 3] - NC_2 [pin 6] - NO_1 [pin 1] - NO_2 [pin 4] ### SW_Z — [MRX108-A](https://www.flux.ai/adrian95/mrx108-a~8zp.md) - License: https://creativecommons.org/licenses/by/4.0/ - Manufacturer Name: Grayhill - Manufacturer Part Number: 56A30-01-1-04N - Role: Switching - Role Details: Placeholder for one-pole four-position nonshorting input-load switch; switch only grounded shunt ends - Datasheet URL: https://www.nkkswitches.com/pdf/MRpowerLevel.pdf - Part Type: Switch **Pins:** - 1 [pin 1] - 2 [pin 2] - 3 [pin 3] - 4 [pin 4] - 5 [pin 5] - 6 [pin 6] - 7 [pin 7] - 8 [pin 8] - A [pin 9] ### T_XFMR — [TY-250P](https://www.flux.ai/adrian95/ty-250p~z3x.md) - Role Details: Placeholder only: map ORG/BRN primary, GRN/GRN-YEL secondary, VIO/GRY/GRY-WHT shields before footprint release - License: https://creativecommons.org/licenses/by/4.0/ - Role: Isolation - Manufacturer Name: Hammond - Manufacturer Part Number: 1140-DB-A - Part Type: Transformer - Datasheet URL: http://catalog.triadmagnetics.com/Asset/TY-250P.pdf **Pins:** - ~ [pin 3] - ~ [pin 5] - ~ [pin 7] - ~ [pin 2] - ~ [pin 8] - ~ [pin 4] - ~ [pin 6] ### U1 — [OPA1656ID](https://www.flux.ai/lcsc/opa1656id~cn08.md) - Manufacturer Part Number: OPA1656ID - JLCPCB Part Class: Extended Part - Role: Input Buffer - Role Details: Channel A unity high-Z buffer; channel B parked as unity follower at A0 - Package or Case Code: SOIC-8_L4.9-W3.9-P1.27-LS6.0-BL - LCSC Part Number: C1346368 - Manufacturer Name: Texas Instruments **Pins:** - 1 [pin OUT A] - 1 [pin 1] - 7 [pin OUT B] - 8 [pin V+] - IN A- [pin 2] - IN A+ [pin 3] - IN B- [pin 6] - IN B+ [pin 5] - V- [pin 4] ### U2 — [OPA1612AID](https://www.flux.ai/jecstronic/opa1612aid~hp4.md) - Part Type: Operational Amplifier (OP-AMP) - Role Details: Channel A unity Sallen-Key HPF; channel B unity post-level driver - Manufacturer Part Number: OPA1612AID - Role: HPF and Driver Op Amp - Datasheet URL: https://www.ti.com/general/docs/suppproductinfo.tsp?distId=10&gotoUrl=https%3A%2F%2Fwww.ti.com%2Flit%2Fgpn%2Fopa1611 - Manufacturer Name: Texas Instruments **Pins:** - -IN A [pin 2] - -IN B [pin 6] - +IN A [pin 3] - +IN B [pin 5] - OUT A [pin 1] - OUT B [pin 7] - V- [pin 4] - V+ [pin 8] *The full schematic, PCB layout, bill of materials, and interactive design are available at [https://www.flux.ai/jakey0101/active-di~b1](https://www.flux.ai/jakey0101/active-di~b1).* --- *Generated from [https://www.flux.ai/jakey0101/active-di~b1](https://www.flux.ai/jakey0101/active-di~b1)*