edjohnwhite
Member
Hello, i put this in the all things green thread the other week, and didn't get any response....i thought i might get more luck if i put it hear...or maybe my etiquette is off..fingers crossed.
Hi anyone
A first post here, i hope people are still hovering around this thread.
Firstly Matta (and everyone thats contributed), thanks for looking after this Green metta. It's helped me through my first big DIY, a 4ch green. Also PeterC thanks for starting this whole thing up and Ptown thank for the kit.
Ok, so the problem..4 channels and psu done and all racked up. All channels are passing some nice audio, with a little white noise, a bit of hum of the channel nearest the toroid, but there isn't much i can do about this.
When it came to setting up, i noticed i'm not getting much output and and the output starts to distort at quite low gain. When setting the led meter levels and measuring the output from the + of the pre, I can't get any more than 3v ac. At around 2.5v ac it starts to distort.
This is the same on all channels which are otherwise ok. So i'm guessing this could be a PSU thing, or something i've not noticed and done the same on all channels. After searching the forum and reading around i have a hunch this could be related to the transistors being in the wrong way round (?).
Does anyone have any ideas or kind words of wisdom? I wouldn't be surprised if i've just totally missed the point of something, and am happy to be told this.
thanks
ed
Hi anyone
A first post here, i hope people are still hovering around this thread.
Firstly Matta (and everyone thats contributed), thanks for looking after this Green metta. It's helped me through my first big DIY, a 4ch green. Also PeterC thanks for starting this whole thing up and Ptown thank for the kit.
Ok, so the problem..4 channels and psu done and all racked up. All channels are passing some nice audio, with a little white noise, a bit of hum of the channel nearest the toroid, but there isn't much i can do about this.
When it came to setting up, i noticed i'm not getting much output and and the output starts to distort at quite low gain. When setting the led meter levels and measuring the output from the + of the pre, I can't get any more than 3v ac. At around 2.5v ac it starts to distort.
This is the same on all channels which are otherwise ok. So i'm guessing this could be a PSU thing, or something i've not noticed and done the same on all channels. After searching the forum and reading around i have a hunch this could be related to the transistors being in the wrong way round (?).
Does anyone have any ideas or kind words of wisdom? I wouldn't be surprised if i've just totally missed the point of something, and am happy to be told this.
thanks
ed