NuSkoolTone
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- Joined
- Feb 9, 2007
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Ok this is weird. I recorded some tracks with my F-50 5 days ago. I haven't used it since. I powered it up today and it won't make a peep!
I checked the record out and that's normal I get signal with the mute switch on or off. If I turn the dirt channel all the way up, I'll get a low fizzy sound as if the master was turned all the way off. Anyone know if the record out is after or before the PI? EDIT:It's PRE PI! Anyone have a block diagram for the F series?
I switched Power tubes. No difference. A word about the power tubes: I didn't have a mesa pair in there. They were a matched set of Ruby's I had because one of the originals were red plating after a plastic tab broke off. When I did the recording I did run it pretty loud. However it did not give ONE hint there was a problem! It's also not the first recording I've done with it, and had been playing it regularly for the last two months with nothing funny going on. Also checked the speaker, that's not the issue either.
Also checked the main fuse (Fine. I suppose it wouldn't even power up!) Looked for any additional fuses inside and there are none.
Once in awhile trying to see what the issue was the amp would crackle.
Any ideas? More to the point, anyone KNOW what this is? I'd rather not send it in, I'd rather just "guess" correctly the first time and replace the part myself. Right now I'm guessing its the OT.
I checked the record out and that's normal I get signal with the mute switch on or off. If I turn the dirt channel all the way up, I'll get a low fizzy sound as if the master was turned all the way off. Anyone know if the record out is after or before the PI? EDIT:It's PRE PI! Anyone have a block diagram for the F series?
I switched Power tubes. No difference. A word about the power tubes: I didn't have a mesa pair in there. They were a matched set of Ruby's I had because one of the originals were red plating after a plastic tab broke off. When I did the recording I did run it pretty loud. However it did not give ONE hint there was a problem! It's also not the first recording I've done with it, and had been playing it regularly for the last two months with nothing funny going on. Also checked the speaker, that's not the issue either.
Also checked the main fuse (Fine. I suppose it wouldn't even power up!) Looked for any additional fuses inside and there are none.
Once in awhile trying to see what the issue was the amp would crackle.
Any ideas? More to the point, anyone KNOW what this is? I'd rather not send it in, I'd rather just "guess" correctly the first time and replace the part myself. Right now I'm guessing its the OT.