DYNACO ST-70 Manual de montagem - Página 4
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10. Connect the BLACK lead from the RIGHT OUTPUT TRANSFORMER to the RIGHT BLACK speaker
terminal. Connect one end of a wire to the right BLACK speaker terminal (S). Connect the other
end of this wire to one of the grounding lugs next to the quad cap. Do EITHER A or B below.
A. If you are using 8 ohm speakers in your system then connect the ORANGE wire from the
right output transformer to the RIGHT RED speaker post (S). Now coil up the BROWN (4
ohm) wire. Place a small piece of tape over the end of this wire so it won't short out to
the chassis.
B. If you are using 4 ohm speakers in your system then connect the BROWN wire from the
right output transformer to the RIGHT RED speaker post (S). Now coil up the ORANGE (8
ohm) wire. Place a small piece of tape over the end of this wire so it won't short out to
the chassis.
* The remaining YELLOW wire from the transformer will be connected at a later step in
construction.
11. Repeat step 10 above for the LEFT OUTPUT TRANSFORMER and the LEFT speaker terminal.
12. Connect the BLUE wire from the LEFT OUTPUT TRANSFORMER to pin 3 of V3.(S) Connect the
BLUE/WHITE wire from the LEFT OUTPUT TRANSFORMER to pin 3 of V2.(S) Connect the BLUE
wire from the RIGHT OUTPUT TRANSFORMER to pin 3 of V6. (S) Connect the BLUE/WHITE wire
from the RIGHT OUTPUT TRANSFORMER to pin 3 of V7. (S)
13. Connect the GREEN wire from the LEFT OUTPUT TRANSFORMER to pin 4 of V3.(S) Connect the
GREEN/WHITE wire from the LEFT OUTPUT TRANSFORMER to pin 4 of V2.(S) Connect the
GREEN wire from the RIGHT OUTPUT TRANSFORMER to pin 4 of V6. (S) Connect the
GREEN/WHITE wire from the RIGHT OUTPUT TRANSFORMER to pin 4 of V7. (S)
14. Connect one end of the Dynaco dual .02 Mfd capacitor to lug #7 of the seven lug terminal strip (S).
Connect the middle wire of this capacitor to lug #6 of this terminal strip. Connect the remaining
end of this .02 Mfd capacitor to lug #5 of the seven lug terminal strip (S). Connect one end of a
wire from lug #6 of this terminal strip (S). Connect the other end of this wire to one of the
grounding tabs next to the quad cap. NOTE – Two separate .02 Mfd @ 100 volts or higher
capacitors may be used in place of this dual .02 Mfd cap. One capacitor across lugs 5 and 6 and
one across lugs 6 and 7.
15. Twist together a pair of 6 inch wires except for 1 ½ inches on each end. Connect one end of one
wire to pin #2 of V7 (S) Connect the other wire to pin #7 of V7 (S). Connect one of the other ends to
pin #2 of V6. Connect the remaining end to pin #7 of V6. Try to keep these twisted wires close to
the side of the chassis.
16. Twist together a 9 1/2 inch pair of wires except for 1 ½ inches on each end. Connect one end of
one wire to pin #2 of V6 (S). Connect the other wire to pin #7 of V6 (S). Route the other ends of
these two wires around the front right corner of the amp and along the front face of the amp.
These two free ends will be connected at a later step.
17. Twist together a pair of 6 inch wires except for 1 ½ inches on each end. Connect one end of one
wire to pin #2 of V2 (S) Connect the other wire to pin #7 of V2 (S). Connect one of the other ends to
pin #2 of V3. Connect the remaining end to pin #7 of V3. Try to keep these twisted wires close to
the side of the chassis.
18. Twist together a 9 1/2 inch pair of wires except for 1 ½ inches on each end. Connect one end of
one wire to pin #2 of V3 (S). Connect the other wire to pin #7 of V3 (S). Route the other ends of
these two wires around the front left corner of the amp and along the front face of the amp. These
two free ends will be connected at a later step.