ablaze 0 Report post Posted September 7, 2003 just keep rising slowly to 20mV..I turned it off in case I might damage anything Share this post Link to post Share on other sites
ablaze 0 Report post Posted September 8, 2003 eeek!! sparks!! I shorted V1+ and V2- accidentally and sparks flew!! did I kill the buffer? Share this post Link to post Share on other sites
Firefox 0 Report post Posted September 8, 2003 eeek!! sparks!! I shorted V1+ and V2- accidentally and sparks flew!! did I kill the buffer? Probably not the buffer. Share this post Link to post Share on other sites
jtfoo 0 Report post Posted September 8, 2003 Your power regulator could be damaged by that. Measured the output voltage again before your plug it in to be safe. Share this post Link to post Share on other sites
ablaze 0 Report post Posted September 8, 2003 voltages look good still. dc offset fixed with the C6G cap. I'm actually listening to my PPA now! Share this post Link to post Share on other sites
ablaze 0 Report post Posted September 8, 2003 biased to class A with ~1.6mA bias. heh. how about the rest of you? Share this post Link to post Share on other sites
voodoochile 0 Report post Posted September 8, 2003 ouch... the buffer is prolly OK, as the PSU is taking the brunt of that oops. Your board looks good, though! You must be the first in Singapore. ~Mark Share this post Link to post Share on other sites
ablaze 0 Report post Posted September 8, 2003 ouch... the buffer is prolly OK, as the PSU is taking the brunt of that oops. Your board looks good, though! You must be the first in Singapore. ~Mark prob cos I have no patience as some of the guys know anyway, now got humming problem to troubleshoot Share this post Link to post Share on other sites
jtfoo 0 Report post Posted September 8, 2003 I just finished admiring the board... Will progress the next stage soon... Share this post Link to post Share on other sites
ablaze 0 Report post Posted September 8, 2003 quick quick Share this post Link to post Share on other sites
jasonhanjk 0 Report post Posted September 8, 2003 Slow and steady, you don't want to blow things up... Ablaze, did you ground your blue alps? That may solve the humming... Share this post Link to post Share on other sites
ablaze 0 Report post Posted September 8, 2003 one step ahead of you. grounded already. Share this post Link to post Share on other sites
ablaze 0 Report post Posted September 8, 2003 btw, how do I test buffers, to see if they're working? I checked all voltages on the buffer that I accidentally shorted just now, and they all still look fine. Share this post Link to post Share on other sites
jasonhanjk 0 Report post Posted September 8, 2003 ok, good... Now, when did the humming occur; during turning the blue alps; touching something.... Share this post Link to post Share on other sites
jasonhanjk 0 Report post Posted September 8, 2003 btw, how do I test buffers, to see if they're working? I checked all voltages on the buffer that I accidentally shorted just now, and they all still look fine. Warm to touch but not hot.... err... scalling hot... Share this post Link to post Share on other sites
