seavote
Well-known member
my project is progressing.psu trannies are mounted and hooked up. pcb(gustav)populated and installed. i'm about to wire up the xlrs and 3 way switch. i want to see if i understand the grounding for the project correctly. gyraf writes
"Connect power gnd to signal gnd at the output xlr."
as i understand it i will wire the ground lug on the output xlr to the ground lug on my ac inlet. the ground(0v) coming off the pcb goes to the mic via pin 1 of the 7 pin xlr and to the output via pin 1 of the output xlr. is pin 1(0n the output xlr) connected to the ground lug internally in the xlr? if not, i dont understand where the 0v rail finds its way back to earth ground. should i jump the connection bteween ground lug and pin 1 on the output xlr?
somewhere in the metas gyraf also wrote that heater 0v,ht 0v should be grounded at one point preferably in the mic.
i understand this to mean pin 1(ht ) and pin 7(heater) should connect with the transformer ground(as shown on the schematic) on the mic body. is this correct?
"Connect power gnd to signal gnd at the output xlr."
as i understand it i will wire the ground lug on the output xlr to the ground lug on my ac inlet. the ground(0v) coming off the pcb goes to the mic via pin 1 of the 7 pin xlr and to the output via pin 1 of the output xlr. is pin 1(0n the output xlr) connected to the ground lug internally in the xlr? if not, i dont understand where the 0v rail finds its way back to earth ground. should i jump the connection bteween ground lug and pin 1 on the output xlr?
somewhere in the metas gyraf also wrote that heater 0v,ht 0v should be grounded at one point preferably in the mic.
i understand this to mean pin 1(ht ) and pin 7(heater) should connect with the transformer ground(as shown on the schematic) on the mic body. is this correct?