1k Ohms 1/2W Trimmer Potentiometer Top Adjustment

220uF 16V 

100nF Ceramic Capacitor 50V 10% 5mm Pin Spacing (Hitano)

40-Way Square Gold straight Pin Header 2.54mm for PCB. Compatible with DUPONT system. Header is 40 way with easy break slots between the pins...

20Way Single Row Pin Header. Gold pins, Cuttable to shorter length (lose 1 pin every cut). 2.54mm pitch (0.1")

Single 1K Volume Pot 

50k Ohms 1/2W Trimmer Potentiometer Top Adjustment

47uF 16V

Battery Spring Set (3 parts)