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Peavey should get a swift kick in the nuts.
I looked at the schematics for both amps, and yeah, there are differences. But there are a LOT more things in common with em. First, a little tube-theory:
preamp tubes have three things we're concerned with - plates, grids, and cathodes. Cathodes and plates work together to set the gain and frequency response. (yeah, I'm simplifying. If you want to go into depth, take a class.) [img]images/icons/grin.gif[/img]
Grids are inputs. In a high gain preamp, usually the signal goes into a grid, then out the plate (which is also hooked up to the B+ voltage for the tube) then a coupling capacitor that blocks the voltage, and just lets the sound through. After the coupling cap, it goes into another tube stage, made up of a grid, cathode, and plate. One tube has two gain stages.
Anyways, the peavey and the soldano have the *same* values for each stage in the lead channel. Each plate resistor is the same. Each cathode resistor is the same, but the cathode capacitors are of different values. This changes the tone slightly.
Another difference: The Soldano has the fx loop before the eq: 5150 after. Also, the Peavey seems to have a lot more solid state junk for switching in there than the Soldano, unless the soldano schematic just doesn't show it to the same degree.
Tone stacks are both Marshall ripoffs, and are identical to each other. (tone stack is the set of caps, resistors and potentiometers that give you bass, mid, treble controls.)
My guess? Peavey got it as close as they could without Soldano suing them... and while we all can appreciate Soldano's amps, his company isn't much $$$$ wise compared to Peavey. If he did take em to court, Peavey's attorneys would likely end up owning Soldano somehow.
Speaking of attorneys, the above is my OPINION of the information widely available on the internet, and certainly isn't factual. [img]images/icons/wink.gif[/img]
both schematics are available at schematicheaven.com if you want to check for yourself. The SLO is harder to trace, however.
Pete
I looked at the schematics for both amps, and yeah, there are differences. But there are a LOT more things in common with em. First, a little tube-theory:
preamp tubes have three things we're concerned with - plates, grids, and cathodes. Cathodes and plates work together to set the gain and frequency response. (yeah, I'm simplifying. If you want to go into depth, take a class.) [img]images/icons/grin.gif[/img]
Grids are inputs. In a high gain preamp, usually the signal goes into a grid, then out the plate (which is also hooked up to the B+ voltage for the tube) then a coupling capacitor that blocks the voltage, and just lets the sound through. After the coupling cap, it goes into another tube stage, made up of a grid, cathode, and plate. One tube has two gain stages.
Anyways, the peavey and the soldano have the *same* values for each stage in the lead channel. Each plate resistor is the same. Each cathode resistor is the same, but the cathode capacitors are of different values. This changes the tone slightly.
Another difference: The Soldano has the fx loop before the eq: 5150 after. Also, the Peavey seems to have a lot more solid state junk for switching in there than the Soldano, unless the soldano schematic just doesn't show it to the same degree.
Tone stacks are both Marshall ripoffs, and are identical to each other. (tone stack is the set of caps, resistors and potentiometers that give you bass, mid, treble controls.)
My guess? Peavey got it as close as they could without Soldano suing them... and while we all can appreciate Soldano's amps, his company isn't much $$$$ wise compared to Peavey. If he did take em to court, Peavey's attorneys would likely end up owning Soldano somehow.
Speaking of attorneys, the above is my OPINION of the information widely available on the internet, and certainly isn't factual. [img]images/icons/wink.gif[/img]
both schematics are available at schematicheaven.com if you want to check for yourself. The SLO is harder to trace, however.
Pete
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