ARG! My 5150 blew!

[SpaceShipOne]

Somebody help me out here. I'm playing and bam, it pops and the main power light goes out but it's still on standby. The switch buzzed when I turned it on again and then I smelled smoke. Tubes turn on with a slight buzz and standby light is on but no main power.

 

[YJM_Rocks]

Re: ARG! My 5150 blew!

Sounds like what happened to my JMP, but theres no standby light on it so I dunno about that. I smelled yucky smoke when it died too, but a fuse went so it wouldn't power on again. Mine is in the shop now and the guy is gonna be able to work on it today or in the next couple days.

 

[YJM_Rocks]

Re: ARG! My 5150 blew!

*hint* don't try to turn it on again.

 

[Rich_S]

Re: ARG! My 5150 blew!

Probably blown tubes from running the bias to hot. (Semi-serious repsonse)

Popping noise and smelling smoke (if you lucky) could be screen grid resistors. If you're not lucky, whatever when wround took the OT with it.

Get it to a tech. If it was a simple little amp like a Princeton, I'd say post gut-shots and we'll check it out, but the 5150 is a big, bad, complicated, PC-board amp. It's more than we can diagnose via the forum.

 

[theodie]

Re: ARG! My 5150 blew!

5150's blow.


LOL!!!!!!!!!!!!!!!!!!!!!!! :burnout::wall:

 

[Skullkrusher]

Re: ARG! My 5150 blew!

Definitely DON'T turn it on again. Just take it to a professional.

 

[SonofaMitch]

Re: ARG! My 5150 blew!

Crappy Buzz yo

~Mitch~

 

[Rich_T]

Re: ARG! My 5150 blew!

Anything to do with the fact it was biased to the hills per chance?

 

[Axl H]

Re: ARG! My 5150 blew!

Anything to do with the fact it was biased to the hills per chance?

I doubt it, I mean when Seraphim says he is right, he is right, right?

 

[Rich_T]

Re: ARG! My 5150 blew!

I doubt it, I mean when Seraphim says he is right, he is right, right?

Of course, of course.

 

[Skarekrough]

Re: ARG! My 5150 blew!

I doubt it, I mean when Seraphim says he is right, he is right, right?

https://forum.seymourduncan.com/showthread.php?t=125081

Never did get a follow-up.

Hopefully the amp will be repaired as quickly as the band van magically was.

 

[Axl H]

Re: ARG! My 5150 blew!

Of course, of course.

Interesting, this is the first time, we have agreed on something I think

Skarey --> LOL! He must have a magic wand or something "I do not know a thing about amps, yet still I am messing with. Please magic wand, help me"....

 

[ErikH]

Re: ARG! My 5150 blew!

Interesting, this is the first time, we have agreed on something I think

Skarey --> LOL! He must have a magic wand or something "I do not know a thing about amps, yet still I am messing with. Please magic wand, help me"....

And the "POOF" was not the magic wand performing a miracle either.

:wizard:

My guess is the hotter bias was too hot and cooked a couple parts. Hopefully a fuse popped too saving a few critical components.

Get it to a tech.

 

[JOLLY]

Re: ARG! My 5150 blew!

Probably blown tubes from running the bias to hot.

That's what I was thinking.

 

[Pierre]

Re: ARG! My 5150 blew!

6L6s are ran at what usually... 34 to 36ma, or would that be EL34s..? I can never remember...

 

[Skarekrough]

Re: ARG! My 5150 blew!

...and you're going to need to change that sig of yours.

 

[Gearjoneser]

Re: ARG! My 5150 blew!

32mA next time.

 

[theodie]

Re: ARG! My 5150 blew!

LOL, hehahahaha, the dude "blew" his amp. I told him to not put his mouth anywhere near it!



He is in mad love with 5150's!

 

[theodie]

Re: ARG! My 5150 blew!

32mA next time.

Maybe Walters will chime in and help?

 

[Hot _Grits]

Re: ARG! My 5150 blew!

If it's a small amount of smoke, then it'll be blown tubes taking out screen resistors. If it'sa large, generally room-clearing amount of smoke, you've done the OT.

GJ's post above offers some VERY solid advice. Take it.