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A Spartan-7 BGA, 26x26 grid, 27x27mm package, 1mm pitch; https://www.xilinx.com/support/documentation/user_guides/ug475_7Series_Pkg_Pinout.pdf#page=300, NSMD pad definition (http://www.ti.com/lit/ds/symlink/bq51050b.pdf, http://www.ti.com/lit/an/snva009ag/snva009ag.pdf Texas Instruments, NDQ, 5 pin (https://www.ti.com/lit/ml/mmsf022/mmsf022.pdf TO-PMOD-11 11-pin switching regulator package, http://www.ti.com/lit/ml/mmsf025/mmsf025.pdf Vishay PowerPAK SC70 dual transistor package http://www.vishay.com/docs/70487/70487.pdf powerpak sc70 sc-70 dual Vishay PowerPAK 1212-8 Single Zetex, SMD, 8 pin package (http://datasheet.octopart.com/ZDT6758TA-Zetex-datasheet-68057.pdf Diodes Incorporated PowerDI3333-8 UXC, 3.05x3.05x0.8mm Body, https://www.diodes.com/assets/Package-Files/PowerDI3333-8%20(Type%20UXC).pdf Infineon, PG-TDSON-8, 6.15x5.15x1mm, https://www.infineon.com/dgdl/Infineon-BSC520N15NS3_-DS-v02_02-en.pdf?fileId=db3a30432239cccd0122eee57d9b21a4 X1SON 2 pin Molex header 2.54 mm spacing | Tayda | A-2939 | | 1 | SW_3PDT_x3 | 3PDT miniature toggle switch ON-ON | | R20, R22 | 3 | 1k | Resistor | | U3 | 1 | AudioJack2_SwitchT | Audio Jack, 2 Poles (Mono / TS), Switched T Pole (Normalling Audio Jack, 2 Poles (Mono / TS) Small Signal NPN Transistor, TO-92 Audio Jack, 2 Poles (Mono / TS) | | U1 | 1 | B10k | **Potentiometer, 9 mm or 16 mm pots had long enough terminals, barely, to poke through the PCB is used. In loop position, loop\nis connected to shell ground, but not to front.

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