0 Members and 1 Guest are viewing this topic.
Nald,Do not connect your safety gnd and your signal gnd directly together.Your safety gnd should be as short as possible connected directly to your chassis.Then the center tap of your power transformer connected to the first negative terminal of the filter capacitor.Do not use this as the start of star gnd since this is the noisest. Tap another wire going to the 2nd filter capacitor. This point can now be considered as the start of star gnd or gnd bus.From the 1st capacitor terminal, install a gnd loop breaker circuit to connect to chassis for safety.Your audio circuit already indicated which terminal need to be connected to gnd bus. Just follow it and you will be good.Cheers.
yes, safety ground connects to one of the bolts holding the IEC power inlets,it is bolted to the chassis at that point...this protects the user from shocks in case there is a power leakage to chassis...
yes...12by7, D3a, 12HL7 etc...even the el84 will do nicely...