Qty Value Device Package Parts Notes: --- ---------- ------------------ ------------------ ---------------------------------------- ------ 2 1x3 3 pin header 0.1" vert JP3, JP6 JP3 omitted when using P1 (DIN-5) 1 -0- 0-ohm jumper 1/4-watt axial R1 1 100u 100uF 25v 6mm/2.5mm radial C10 2 100u 100uF 35v 7mm/2.5mm radial C12, C15 9 104 0.1uF 50v X7R 2.5mm radial C1, C8, C9, C13, C14, C18, C19, C23, C24 1 104 0.1uF 50V X7R 0805 SMD C16 2 10K 10K linear pot Alpha 9mm r/a VR2, VR4 4 10K 10K 5% 1/4-watt axial R2, R4, R8, R277 4 10n 0.01uF 50v X7R 5mm radial C3, C4, C6, C7 1 16M 16MHz crystal HC49/S X1 1 1K 1K 5% 1/4 axial R18 1 1N400x rectifier 1N4004 DO41 10mm D3 "10mm" is just the pad spacing on the board 1 1N400x rectifier 1N4004 DO41 7.6 mm D2 "7.6mm" is also the pad spacing on the board 3 1N4148 signal diode 017AG axial D1, D4, D5 2 1n 0.001uF 50v X7R 5mm radial C5, C35 1 220R 220-Ohm 5% 1/4-watt axial R16 2 22K 22K 5% 1/4-watt axial R9, R15 2 22p 22pF 50v C0G 2.5mm radial C21, C22 1 2K2 2.2K 5% 1/4-watt axial R19 1 2N3904 2N3904 NPN TO92 (EBC) T1 5 330R 330-Ohm 5% 1/4-watt axial R3, R6, R13, R17, R20 2 33K 33K 5% 1/4-watt axial R7, R12 1 3u3 3.3uF 50v 6mm/2.5mm radial C2 1 78L05Z 78L05Z regulator TO92 IC8 1 AMUX 5-pin header 0.1" vertical JP2 Optional, not needed 1 ATMEGA328P ATMEGA328P-PN DIL28 300mil IC5 Microcontroller, will need programmed 1 BEAT Yellow LED LED 3mm dia. LED2 1 TX Green LED LED 3mm dia. LED1 1 BD 100SP1T1B4M2QE TL36XO SPDT On-On SW6 E-Switch (Digikey EG2355-ND) 1 BG2 100SP1T1B4M2QE TL36XO SPDT On-On SW7 1 CL 100SP1T1B4M2QE TL36XO SPDT On-On SW5 1 CW 100SP1T1B4M2QE TL36XO SPDT On-On SW4 1 CY 100SP1T1B4M2QE TL36XO SPDT On-On SW2 1 GU 100SP1T1B4M2QE TL36XO SPDT On-On SW8 1 QU 100SP1T1B4M2QE TL36XO SPDT On-On SW1 1 MA 100SP1T1B4M2QE TL36XO SPDT On-On SW3 1 STOP/RUN 100SP1T1B4M2QE TL36XO SPDT On-On SW9 1 ICSP 2x3 header 0.1" 2x3 vertical JP5 0.1" pin pitch male for ICSP 1 CLK I/O PJ301M-12 JACK 3.5mm vertical J3 1 OUT PJ301M-12 JACK 3.5mm vertical J2 1 RST OUT PJ301M-12 JACK 3.5mm vertical J1 1 SD-50BV DIN5 jack SD-50BV_P P1 1 PC900 H11L1-MN DIL06N OPTO1 H11L1 or PC900 (Digikey H11L1IS-ND) 1 STRIPE 2x8 header 2x8 vertical JP1 0.1" pin pitch male for power 1 TL072P TL072P DIL08 IC2 dual op-amp 1 TL1107A TL1107A TL1107_P SW11 E-switch (digikey EG2510-ND)