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The main turret board is wired
up and ready to mount in the chassis. Purple wires carry high
voltage to the 12AX7's. Yellow wires connect to the cathodes to "bias"
each preamp section. Blue wires carry short runs of signal through the
circuit. White wires are the circuit grounds. Long signal runs are
carried by shielded bundles under the board.
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Lower turret |
Positive & Negative bias supplies and 5 volt switching supply |
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