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The problem is that it doesn't seem to function. The speaker does work, as I can hear the valves warming up along with a quiet hum, but plug a guitar in and... Nothing. I don't even hear a crackle if I remove the jack. All I'm looking for is a point in the right direction, so any help however obvious it may seem will be appreciated.
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There's no quick point in the right direction. There are only more question as you seek answers to your question. MWAH HA HA HA HA HA!!!
Just kidding. Actually I'm not.
Do any of the other amp controls affect the sound of the hum and white noise in the speakers? ie: volume makes it louder, treble makes it brighter, etc."Take two placebos, works twice as well." Enzo
"Now get off my lawn with your silicooties and boom-chucka speakers and computers masquerading as amplifiers" Justin Thomas
"If you're not interested in opinions and the experience of others, why even start a thread?
You can't just expect consent." Helmholtz -
Damn evil questions... Yeah, all controls seem to be doing their job, I'm just getting zero response from the jack. I've checked the wiring and connections to and from it and they look fine, and there is no visual damage to the pcb.Comment
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The schematic I found shows two "channels". If this is like yours and both channels are exhibiting the same problem I would suspect the first preamp tube. If only one channel is giving you a problem I would suspect the jack or it's wiring."Take two placebos, works twice as well." Enzo
"Now get off my lawn with your silicooties and boom-chucka speakers and computers masquerading as amplifiers" Justin Thomas
"If you're not interested in opinions and the experience of others, why even start a thread?
You can't just expect consent." HelmholtzComment
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Yep, there's two channels, and there's no response from the jack on either. The channel switch just changes the tone of the white noise. So you think it's the first preamp tube? How do I identify which one is first? Thanks for your help.Comment
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It wasn't a switch on the schematic I looked at. It was hi/lo jacks for one channel and hi/lo jacks for the other. Four inputs like a Marshall. That's why I wondered in you had the same issue with the other jacks.
The schematic I looked at that had two channels also had them in parallel as two standard voiced channels. Like a vintage amp. No "distortion" channel per se. If your amp is different it would help a lot if you could find a schematic that represents it and post it here. Otherwise we have no idea what we're fixing. Case in point, I took the time to look up a Carlsbro tc60 schematic that seems to be different from yours and my trying to be helpful just wasted two peoples time."Take two placebos, works twice as well." Enzo
"Now get off my lawn with your silicooties and boom-chucka speakers and computers masquerading as amplifiers" Justin Thomas
"If you're not interested in opinions and the experience of others, why even start a thread?
You can't just expect consent." HelmholtzComment
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There was a version of this amp from the '60s or '70s which is the schematic I think Chuck (and I) was looking at.
There is also a modern version which is what I think Danny84 has.
Without a schematic for the current version, it is all guesswork.Originally posted by Enzo
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Correct, I have the re-issue TC60 from about five or so years ago. I've had a look for schematics etc but can only find ones for the vintage amps. Apologies for the confusion, I should have made this clear in my first post. I guess Carlsbro's technical support would be a smart next move? Thanks for your time and effort.Comment
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