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Page 3
HT and Power Supply Ground Wiring................................................................................................................................54
Electrical Test ....................................................................................................................................................................55
Section 8: RCA input, Selector and Noble Volume Pot.........................................................................................................57
Installing and wiring your first pair of RCA inputs ..............................................................................................................57
ELMA Switch Hook-up .......................................................................................................................................................59
Volume Pot Installation ......................................................................................................................................................60
Section 9: Audio Signal Test .................................................................................................................................................65
Section 10: Output Wiring......................................................................................................................................................67
RCA Connections ..............................................................................................................................................................67
Line Board Connections.....................................................................................................................................................67
Section 11: L2 Phono Board Build and Installation ...............................................................................................................68
Phono Board Parts List ......................................................................................................................................................69
Installing the Spacers and Valve Bases ............................................................................................................................70
Installing the Resistors.......................................................................................................................................................72
Installing the Capacitors.....................................................................................................................................................73
Filament Wiring ..................................................................................................................................................................77
Wiring the Output of the PHONO Stage into the ELMA selector.......................................................................................78
Connecting the HT and Power Supply Ground..................................................................................................................79
Phono Input Connections...................................................................................................................................................79
Controlled Phono Input Test ..............................................................................................................................................80
Ground Post Installation.....................................................................................................................................................81
Section 11: Finishing Off .......................................................................................................................................................82
Fitting the Faceplate ..........................................................................................................................................................82
Attaching the LED to the Faceplate ...................................................................................................................................82
Final Thoughts ...................................................................................................................................................................83
Appendix................................................................................................................................................................................84
Resistor Color Code Reference .........................................................................................................................................85
Line Stage Schematic ........................................................................................................................................................86
M2 Power Supply Schematic .............................................................................................................................................87
Phono Board Schematic ....................................................................................................................................................88
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