Regulated power supply
Why is the power supply for the Gainclone not regulated? If it was regulated would the performance be better?
Thank you
George
Why is the power supply for the Gainclone not regulated? If it was regulated would the performance be better?
Thank you
George
The LM3875 has 120 dB supply noise rejection. According to my measurement with RMAA and soundcard, inverting gainklone has 82 dB S/N ratio, so regulating supply voltages does not make sense, as long as there is enough voltage to drive the speakers.
I still dun get it...does the amp need positive negative supplies?? like +-30V ?? I'm sorry but the tranny wiring picture is down....one myside at least..wonder why??
Grounding scheme
Hi...
I am kind of confused on the grounding scheme. I understand the need for both star and power grounds. In the schematics, the power ground is connected to the DC 0V "G" which is correct.
Do I need to connect the Power Ground (PG) to "Earth" (the mains earth wire). In the beginners guide, it mentioned that we should connect the PG to earth via a 100 Ohm resistor and a 0.22microf capacitor. Why do we need that?
Regards
Alvin
Hi...
I am kind of confused on the grounding scheme. I understand the need for both star and power grounds. In the schematics, the power ground is connected to the DC 0V "G" which is correct.
Do I need to connect the Power Ground (PG) to "Earth" (the mains earth wire). In the beginners guide, it mentioned that we should connect the PG to earth via a 100 Ohm resistor and a 0.22microf capacitor. Why do we need that?
Regards
Alvin
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