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Q = R3 = Four Dial resistance box 0.1x10, 1x10, 10x10, 100x10ohms.
C1 = C2 = Single dial condenser Box of 0.1x10mfd.
R2 = A variable 4-dial resistance box of 1x10, 10x10, 100x10 &...
Q = R3 = Four Dial resistance box 0.1x10, 1x10, 10x10, 100x10ohms.
C1 = C2 = Single dial condenser Box of 0.1x10mfd.
R2 = A variable 4-dial resistance box of 1x10, 10x10, 100x10 &...