
NegativeDCBreadboardAdaptor
rhinocerose/breakout-boards
Some small adapter boards to help with prototyping SMT packages on a breadboard.

Guitar triggered PLL Synth effect
GuitarPLLSynthEffect is an open-source printed circuit board by cracked-machine, from the cracked-machine/GuitarPLLSynthEffect repository on GitHub. It is a 2-layer board of 83.3 × 164.5 mm with 70 parts on 97 nets, routed with 589 tracks and 49 vias.
It is built around the TL072, TC7662BCOA and B10K. It belongs with the audio and music boards of this library.
| Qty | Value | Footprint | References |
|---|---|---|---|
| 9 | 100nF | Capacitors_SMD:C_0805_HandSoldering | C_OABY1, C_OABY2, C_OABY3, C_OABY4, C_OABY5, C_OABY6, C_OABY13, C_PWRBY2, C_PWRBY3 |
| 6 | Conn_01x06 | Pin_Headers:Pin_Header_Straight_1x06_Pitch2.54mm | J_AUX2MAIN_FXSW1, J_AUX2MAIN_PLL1, J_AUX2MAIN_VOL1, J_MAIN2AUX_FXSW1, J_MAIN2AUX_PLL1, J_MAIN2AUX_VOL1 |
| 5 | 10uF | Capacitors_SMD:CP_Elec_4x5.3 | C_PWRBY1, C1_NEG1, C1_NEG2, C2_NEG1, C2_NEG2 |
| 4 | 2K7 | Resistors_SMD:R_0805_HandSoldering | R_LED1, R_OA_IN1, R_OA_OUT1, R_SAW1 |
| 4 | Conn_01x03 | Pin_Headers:Pin_Header_Straight_1x03_Pitch2.54mm | J_AUX2MAIN_FX1, J_AUX2MAIN_INSW1, J_MAIN2AUX_FX1, J_MAIN2AUX_INSW1 |
| 3 | JACK__MONO_2P_NC | custom_sockets:JackSocket_Mono_PCB | J_CLEAN_IN1, J_DIRTY_IN1, J_OU1 |
| 3 | SW_SPDT | custom_sw:SW_SPDT_W6.86MM_L12.7MM_P4.8MM_D2MM | SW_HOLD1, SW_INSW1, SW_WAVE1 |
| 2 | 10K | Resistors_SMD:R_0805_HandSoldering | R_MIX_F1, R_MIX_G1 |
| 2 | 4.7uF | Capacitors_SMD:C_0805_HandSoldering | C_CLEAN_IN1, C_DIRTY_IN1 |
| 2 | B100K | Potentiometers:Potentiometer_Bourns_PTV09A-1_Horizontal | DAMPEN1, MIX1 |
| 2 | Conn_01x04 | Pin_Headers:Pin_Header_Straight_1x04_Pitch2.54mm | J_AUX2MAIN_LED1, J_MAIN2AUX_LED1 |
| 2 | TL072 | SMD_Packages:SOIC-8-N | U_OAFXBUF1, U_OAPLLSAW1 |
| 2 | _TC7662B | SMD_Packages:SOIC-8-N | U_NEG1, U_NEG2 |
| 1 | 100K | Resistors_SMD:R_0805_HandSoldering | R_SFOUT1 |
| 1 | 10R | Resistors_SMD:R_0805_HandSoldering | R_SAWJOIN1 |
| 1 | 10nF | Capacitors_SMD:C_0805_HandSoldering | C_SAWINT1 |
| 1 | 10uF | Capacitors_SMD:C_0805_HandSoldering | C_HOLD2 |
| 1 | 15R | Resistors_SMD:R_0805_HandSoldering | R_OA_OUT_F1 |
| 1 | 1K | Resistors_SMD:R_0805_HandSoldering | R_SAWFB1 |
| 1 | 2.2uF | Capacitors_SMD:C_0805_HandSoldering | C_HOLD1 |
| 1 | 22K | Resistors_SMD:R_0805_HandSoldering | R_SWING1 |
| 1 | 22nF | Capacitors_SMD:C_0805_HandSoldering | C_VCO1 |
| 1 | 470nF | Capacitors_SMD:C_0805_HandSoldering | C_LPF1 |
| 1 | 47nF | Capacitors_SMD:C_0805_HandSoldering | C_PllRefIn1 |
| 1 | 560R | Resistors_SMD:R_0805_HandSoldering | R_FXVOL1 |
| 1 | B10K | Potentiometers:Potentiometer_Bourns_PTV09A-1_Horizontal | TRIG1 |
| 1 | B1K | Potentiometers:Potentiometer_Bourns_PTV09A-1_Horizontal | FXVOL1 |
| 1 | B1M | Potentiometers:Potentiometer_Bourns_PTV09A-1_Horizontal | SWING1 |
| 1 | B50K | Potentiometers:Potentiometer_Bourns_PTV09A-1_Horizontal | FMOD1 |
| 1 | Jumper_NC_Dual | Oddities:NetTie-II_Connected_SMD | JP_MIXEDGND1 |
| 1 | LED | LEDs:LED_D5.0mm | D_ON1 |
| 1 | SW_3PDT_on_on | custom_sw:SW_3PDT_W18MM_L17.3MM_P5.3MM_D2MM_PCBPin | SW_BYPASS1 |
| 1 | TEST_1P | Measurement_Points:Measurement_Point_Round-SMD-Pad_Small | JTP1 |
| 1 | TL074 | SMD_Packages:SOIC-14_N | U_MAINOA1 |
| 1 | _4046 | Custom_SMD_Packages:SO-16-N++ | U_PLL1 |
| 1 | _Barrel_Jack | custom_sockets:BARREL_JACK | J_POWER1 |
| 1 | _Schottky | Diodes_SMD:D_SOD-123F | D_IN1 |

rhinocerose/breakout-boards
Some small adapter boards to help with prototyping SMT packages on a breadboard.





StudioKAT/VintageDualVCA
If nothing is patched into OUT1, the signal from CH1 is automatically mixed into OUT2.


It measures 83.3 × 164.5 mm and has 2 copper layers, 1.6 mm thick.
70 parts, built around the TL072, TC7662BCOA and B10K. The full list of its parts is on this page, with links to each part's symbol and footprint where PCBKit's library has them.
From the cracked-machine/GuitarPLLSynthEffect repository on GitHub, at the commit this page was made from: the board is GuitarPLLSynthEffect.kicad_pcb. PCBKit opens the board in the browser, with nothing to install.
Its repository states no licence, so its author keeps all rights: ask cracked-machine before reusing the design.