PEAVEY DEUCE VT SERIES SCHEMATIC


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Willabe Global Moderator Level 5 Posts: The output stage uses Grid biasing which is apparently factory set fairly cold so that any matched pair of 6L6 valves should work fine. Curiously, on the 4 valve Deuce, there are no screen resistors but on the 6 valve Mace they include screen resistors on 4 out of the 6 output valves. If i only had a layout with part numbers on it i would be done already. Could be more going on? Bookmarks Bookmarks Digg del. Obviously, I know enough to know how dangerous they can be and will take precautions.

If so, then it does seem prudent to use slightly larger screen res values in triode mode since this will limit max output power and so increase likelihood of overdriving the output stage. In which case, could you help me understand what I have picked up incorrectly? That’s the basic idea, yes. If you haven’t tired them, it would be worth a try. I think they put an International tranny in it but that’s the only difference from the domestic. It was the obvious and yet i suspected the worst case in transistor problems. If you cut the power in half, the sound will only be three decibels less loud.

If it is IWT, intermittent when tapped sounds like a loose connector, part, or a bad solder spot.

Got to stop for today. Thanks again for the advice, this has been a really helpful thread. In that case, bias voltage would only be adjustable by altering the potential divider formed by IR8 and IR9 in the power supply? Thanks to all who have contributed here. Half of the chassis and pcb were sticky with that CRC anti rust oil. Too much idle current xeuce the tubes overheat. The preamp signal is fine but not making a connection to the pre out or to the power tube coupling.

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In which case, the max output power is simply set by the valves max power assuming power supply and OT are up to the job?

And yes, it definitely looks like a properly biased amp and a speaker attenuator might be the way to go. These amps are a D. Speakers were square magnet type. The Classic VT has a full solid state op-amp based preamp and then uses transistors for the phase splitter before the push pull 6L6 output stage.

I guess anything south of 3W would be safe? If anyone happens to have a schem for it that would be a geat help. I have some serious cleaning to do also. You CAN change the efficiency of a tube such that it clips at a much lower maximum power by altering it’s operating conditions.

Install Peavey Deuce Vt Reverb Schematic – •

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Deuce Mace VT schematic. At least that’s what’s wrong when I usually get them like that. Thanks for the replies.

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Power amp clipping only occurs at maximum power output, but you said you wanted to drop the output power to more practice friendly levels. Could be more going on? Does anyone have a schematic for it? Those are mutually exclusive.

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Couple that with less robust modern tube designs and you have trouble. If so, then it does seem prudent to use slightly larger screen res values in triode mode since this will limit max output power and so increase likelihood of overdriving the output stage.

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Of course, the valves schemwtic need to be kept within their operational range and I was forgetting this.

The output stage uses Grid biasing which is apparently factory set fairly cold so that any matched pair of 6L6 valves should work fine. Thanks for the responses. I think they put an International tranny in it but that’s the only difference from the domestic.

The grid leak resistors on the power tubes have essentially no impact on the bias voltage assuming they’re not far too large. But of course this amp with the SS preamp will through you off your normal thinking and ease.

It was the obvious and yet i suspected the worst case in transistor problems. Usually dont need a schematic much anymore.

Deuce VT T Ampl/Mixer Peavey Electronics, Meridian – Miss

With the schems I’ll be now able to fix it. Peavey Deuce VT Series: Sounds like you are saying the original design is a sailing a bit close to the wind with 4.

I have never had much luck with these amps. Results 1 to 6 of 6. Maybe it is me somehow. Please login or register. Someone did do this in a Peavey Butcher. No matter where I find this schema online it is just 4 blank pages.