Quantity   Component name
1 × P100 mask medium, 9200, McCordick
1 × black project box Hammond 1593K
1 × grey project box Hammond 1593J
1 × speaker Mode 61-650-1
1 × electret microphone Mode 72-160-1
1 × SPST bistable toggle switch 452-120
1 × 10 kohm potentiometer 62-244-1
2 × stainless oval mach. screws 8-32 x 3/4"
2 × stainless lock washers S/S #10
4 × stainless nuts 8-32
2 × stainless acorn nuts 8-32
1 × 2.5 mm sub-mini patch cable female to male, 6', straight plug
1 × 2.5 mm mono phono plug straight
2 × 2.5 mm sub mini phono jacks
1 × 3.5 mm mini phono patch cable male-male, 3', straight plugs both ends
2 × 3.5 mm mini phono barrel jacks
1 × 9V lithium battery
1 × 9V-clip to barrel jack adapter 2.5" long, Adafruit 80, or similar
1 × 9V battery holder
1 × DC barrel jack 2.1 mm x 5.5 mm, center positive.
1 × bedsheet strap
2 × mirror brackets
3 × picture hangers
6 × machine screws zinc-plated, pan-head, 11/64" dia., 3/16" long
6 × nuts zinc-plated
2 × brass lugs from large microswitches outside-of-mask connectors, hole widened to 11/64"
2 × hole-lugs from banana jacks inside-of-mask connectors,holes drilled to 11/64" dia.
1 × rubberized-fiber gasket sheet 0.03" thick
2 × Fastenal quick female disconnect K.S 5 22-16
1 × 0.03"-thick brass strip for fabricating signal adapter
1 × 3/8" OD push coupling Watts PL-3020
1 × strip board
4 × Schmartboard-brand jumpers 2 x 2"; 2x 5"
6 × header pins
1 × Common electronic components see circuit diagram.