Component cost for amplifier

All measured and listed in USD

25 ohm rheostat - 4.29

0.01  mf – 6 cents

220 mf – 3.95

100 mf – 19.95

10 0hm – 1

Lm 386 -1.69

0.01  mf – 22.91

5 kw potentiometer - 10.36