Hi all,
Finally i finished my LM1876 based 2+1 (its a long story) project last night at 02:00 AM... And with a big excitement, i pushed the power switch! In half of a second everything i made has blowed with a big blast. Everything has gone to the otherside Because my (nonisolated!) mains input connections were very very close to rectifier output terminals (in fact they were floating) and while i pushing the power switch.......
Thanks god i'm alive but i lost my one month work.
For the conclusion i can say;
- Do not work after midnight with a naked mains cable. Especially while youre drunk!
Have a nice day...
Finally i finished my LM1876 based 2+1 (its a long story) project last night at 02:00 AM... And with a big excitement, i pushed the power switch! In half of a second everything i made has blowed with a big blast. Everything has gone to the otherside Because my (nonisolated!) mains input connections were very very close to rectifier output terminals (in fact they were floating) and while i pushing the power switch.......
Thanks god i'm alive but i lost my one month work.
For the conclusion i can say;
- Do not work after midnight with a naked mains cable. Especially while youre drunk!
Have a nice day...
alkohol + music listening
might not mix too bad
but
alkohol + amplifier work & set up
is not to recommend
as well as
alkohol + car driving
is a danger to human lives
you'll be back with MK2 of your amp project - for sure
maybe something to do for X-mas holiday ...
lineup does seldom take alkohol and not too much, of that poison
might not mix too bad
but
alkohol + amplifier work & set up
is not to recommend
as well as
alkohol + car driving
is a danger to human lives
you'll be back with MK2 of your amp project - for sure
maybe something to do for X-mas holiday ...
lineup does seldom take alkohol and not too much, of that poison
I dont know.. Something is burned on board but it seems there is no exploded component. I heard a big noise!
After all, i throwed it trash. But as i can see now, the damage is not as big as i guess. Interesting! What do you say?
Anyway... I need a new project but not a 2+1! I want to make a GainClone as many persons did in the forum. What can you recommend me?
Does stereo LM3886 GC plus that suit for me?
http://sound.westhost.com/project97.htm
I will do them with PCB that time. Will they work together as HI-FI? I want to use LM833 instead of TL072 for that preamp project (because somebody said its better).
Whats your advices to me? (pls dont say "buy kit", i wnat to make everything by myself)
Thank you very much..
After all, i throwed it trash. But as i can see now, the damage is not as big as i guess. Interesting! What do you say?
Anyway... I need a new project but not a 2+1! I want to make a GainClone as many persons did in the forum. What can you recommend me?
Does stereo LM3886 GC plus that suit for me?
http://sound.westhost.com/project97.htm
I will do them with PCB that time. Will they work together as HI-FI? I want to use LM833 instead of TL072 for that preamp project (because somebody said its better).
Whats your advices to me? (pls dont say "buy kit", i wnat to make everything by myself)
Thank you very much..
If it will make you feel any better I destroyed probably 10 chips this last year.... But I'm breaking less stuff now...
Made a PCB for Nuuks valve buffer last night only to have it break into oscillation every 5 minutes....
What could I do... back to the drawing board, new design, desolder and tested old components, and just completed the new assembly, now 2 seperate PCBs. Will however wait till tommorrow morning to test, I'm just too tired now.
Made a PCB for Nuuks valve buffer last night only to have it break into oscillation every 5 minutes....
What could I do... back to the drawing board, new design, desolder and tested old components, and just completed the new assembly, now 2 seperate PCBs. Will however wait till tommorrow morning to test, I'm just too tired now.
pinkmouse said:Sorry to hear that.
When I finish a project I always leave it 'till the next day before doing a last check and power up. It's amazing what errors you can pick up when you come back fresh.
Yes, and I hardly learned it with the life.
About alcohol... I drive very well with my brain floating on alcohol !!
Dxvideo said:So i'm not alone! Feeling better, especially heard that from you ..
You're not alone !!!
I already turned chips into smoke many many times !!
Interesting. Have a look at Nuuk's site for info on paralleling up SMPS. If you can then I would run them on mains with a stereo LM4780, and use the 18-0-18 to drive a bridged LM4780. You could do that with one set of Peter's boards, or have a look at my SS PCB thread if you want to make your own.
- Status
- This old topic is closed. If you want to reopen this topic, contact a moderator using the "Report Post" button.
- Home
- Amplifiers
- Chip Amps
- My 2+1 project; FAILED!