Quick help needed!!!

[brandonb123]

Hey all,

Just plugged in my orange rocker 30 combo I have owned for about 3 years or so now. Re-tubed back the summer. I was running a Tc Nova delay into it and eventually the repeating delay caused a really weird electronic noise so i shut it off instantly. I turned it back on and no sound. I replaced the preamp tubes 1 by 1 and no luck and i replaced the set of power tubes and no luck. Any idea if this is a fuse? I wasn't driving it hard, probably at 40% volume on the clean channel. If its a fuse how much is it to fix roughly?

Thanks!

[Nork]

'bout 50 cents. for a fuse...

what sort of settings did you have on the nova - have the repeats up really high? like sent it into self-oscillation? that should bust the amp, i wouldn't think...is your speaker connected? is your speaker fried?

[thenetsux]

i send my delay into ridiculous self oscillation all the time at huge volumes with 35db boost in front of it and i've never had a problem with it.

[Orphin]

When dealing with an amp that has gone completely silent, the safest thing to do to start with is to make sure that you have hooked up the amp to a working cabinet with a healthy speaker cable. If you don't have other amps or cabs, you can plug an mp3 player or whatever to listen to the cab.

After this check, you can't really cr@p out the amp more than it is. If it keeps blowing fuses though you should stop your troubleshooting and take it to a tech.

So it seems that you're not dealing with a tube issue. My guess right off the bat is that it could be an electrolyte that's gone bad. It's an easy fix for a tech.

[nguideau]

So it seems that you're not dealing with a tube issue. My guess right off the bat is that it could be an electrolyte that's gone bad. It's an easy fix for a tech.

Couldn't it still have been a tube issue?

Perhaps a power tube bit the dust and the fuse did it's job and protected the rest of the amp when the tube blew up. He then replaced the power tube, but hasn't checked the fuse yet. If the fuse is dead, the new power tubes could've "fixed" the original problem, just can't tell since the fuse needs replacing.

[brandonb123]

Hey all.

Yes it went into self oscillation (Sp?). However i feel like an idiot. I tried changing out the whole set of tubes instead of just 1 by 1 and it works now so I have no idea what i did wrong before. Thanks for the info guys, greatly appreciated .

On another note, any one know where i can get 4 replacement screws for the back? they are getting pretty stripped and Im afraid I wont be able to grip them soon.

Thanks!

[Orphin]

So it seems that you're not dealing with a tube issue. My guess right off the bat is that it could be an electrolyte that's gone bad. It's an easy fix for a tech.

Couldn't it still have been a tube issue?

Perhaps a power tube bit the dust and the fuse did it's job and protected the rest of the amp when the tube blew up. He then replaced the power tube, but hasn't checked the fuse yet. If the fuse is dead, the new power tubes could've "fixed" the original problem, just can't tell since the fuse needs replacing.

You are certainly correct. I'm just taking for granted that he checked the fuse? It takes like half the time of writing about it on a forum?
But generally, if one have checked the fuses and swapped the tubes, the next step is to turn to a qualified tech.