Only one of the two channels will be described. The shell of a phono jack is grounded and its center conductor goes to the grid, pin 2, of a 12 A X 7. This grid also goes through a 47 k ohm res to ground. The cathode, pin 3, goes through a 2.2 k ohm res to ground. The plate, pin 1, goes through a 220 k ohm res to B plus 2. The plate also goes through a .02 mike cap to the other section's grid, pin 7. Pin 7 goes through a 3.3 meg ohm res to ground. The cathode, pin 8, is grounded. The plate, pin 6, goes through a 220 k ohm res to B plus 2. Pin 6 goes through a 200 pf cap then a .001 mike cap to pin 3, cathode. There is a 330 k ohm res in parallel with the 200 pf cap. Pin 6 also goes through a .1 mike cap to the center of the tape output jack, the shell is grounded. The center of the tape out jack goes through a 1 meg pot connected as a rheostat to the tape out jack of the other channel. This pot is labeled blend. The tape out jack goes through a 470 k ohm res to the top of the volume control pot and the bottom is grounded. The tape out jack also goes to the wiper of the treble control 5 meg ohm. One end of the treble control goes through a .0033 mike cap to ground. The other end of the treble goes through a 470 pf cap to the top of the volume control. The top of the volume control also goes through a 39 k ohm res to one end of the bass control, a 5 meg ohm pot connected as a rheostat. There is a .004 mike cap in parallel with the bass rheostat. The wiper of the volume control goes through a .005 mike cap to the grid, pin 2, of a 12 A X 7. Pin 2 also goes through a 10 meg ohm res to ground. The cathode, pin 3, goes through a 100 ohm res to ground. The plate, pin 1, goes through a 470 k ohm res to B plus 1. The other half of this 12 A X 7 is used in the other channel. Pin 1 also goes through a .1 mike cap to the junction of a 1 meg and a 470 k ohm res. The other end of the 1 meg goes to ground and the other end of the 470 k goes to the grid, pin 2, of a 12 A V 7. The cathode, pin 3, goes through a 470 ohm res in parallel with a 15 mike cap to ground. The plate goes to the blue wire, primary, of the output transformer. The other end of the primary, red, goes to B plus 1. The plate also goes through a .002 mike cap then a 470 k ohm res to pin 2, grid, of the same tube. The other half of the 12 A V 7 is used in the other channel. The low side of the output transformer secondary is grounded and the top goes to one contact of the stereo phones output jack. The top of the secondary also goes through a 100 ohm res to the junction of the cathode, pin 3, of the 12 A X 7 and the 100 ohm res mentioned earlier. End of verbal description.
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