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Post subject: 6V6, diode rectifier?
Posted: Mon Apr 21, 2008 2:32 pm
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I have question about the output tube in the Champ 600. It says that the 6V6 output tube is a diode rectifier. Doesn't a rectifier make a natural compression when overdriven? I thought that rectifiers and output tubes were different. ( please excuse me if it sounds stupid)


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Posted: Mon Apr 21, 2008 4:53 pm
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I think that the tube can be a rectifier. You can get distortion from diode clipping.

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Posted: Mon Apr 21, 2008 6:21 pm
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Can you explain what "diode clipping" is please?


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Posted: Wed Apr 23, 2008 9:41 am
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You're confusing different specs.

The Champ 600 has a diode rectifier, which means that the device that converts AC from your wall outlet to DC that the tubes can use is solid-state. Some amps use a tube rectifier for this; the 600 does not. Diode rectifiers typically supply more voltage than tube rectifiers and they produce far less heat. Some purists prefer amps with tube rectifiers because the lower voltage can induce "sag," or greater distortion when you play harder.

The 6V6 is the output tube. It powers the speaker through an output transformer.

Diode clipping is an entirely different thing, used by some Marshall amps and most distortion pedals to generate distortion and overdrive tones. Diode clipping is done by signal diodes that are inserted (usually with some kind of intensity control) in the path that the signal takes through the amp. There are no clipping diodes in the Champion 600.


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Posted: Wed Apr 23, 2008 7:01 pm
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Thanks Billm 8)


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