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Figure 19-Fasten the transformer to the preamp right side wall 
 
Figure 20-Power Supply assembled and installed 
Prepare to Test the power supply 
Make sure that none of the unconnected ends of the power supply can contact any other 
wire. That’s why we left the unconnected ends with their insulation in place. If you have 
any doubts, individually tape the unconnected ends to prevent any possibility of short 
circuits.