Cut and boost, in one. On the left is an input terminal which connects to the grid of a triode, 12 A X 7. The grid goes to ground through a 470 k ohm resistor. The cathode goes to ground through a 2.7 k ohm resistor. The plate goes to B plus through a 47 k ohm resistor. The plate also connects to one end of a 0.1 microfarad capacitor. The other end goes to one end of a 200 k ohm resistor. The other end goes to the top of the Bass pot. The bottom of the pot goes through a 27 k ohm res to ground. There is a 0.0018 mike cap from the top of the pot to its wiper. There is a 0.018 mike cap from the wiper to the bottom. There is a 330 pf cap from the junction of the 0.1 cap and the 200 k ohm resistor to the top of the treble pot. There is a .0033 mike cap from the bottom of this pot to ground. The wiper of the treble pot connects to the wiper of the bass pot through a 33 k ohm resistor. The wiper of the bass pot is the output point of the tone control. The output of the tone control goes through a 120 k ohm resistor to the top of one section of the balance pot, 250 k ohm linear. The bottom of the balance pot goes through another 120 k ohm resistor to ground. The grid of the next stage would connect to the wiper of the balance control. End verbal description.