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Hi all
I've already been posting shots of the cabinetry over in the cab sub-forum here, I think things are now far enough along circuit-wise to introduce you all properly to my latest project, which is rapidly nearing completion.
Imagine if you started with what is basically a 80's 100W Dumble overdrive special circuit, then decided to add reverb and a high quality effects loop in as a transparent manner as possible? Been done, you say? Yes, but wait, there's more! On top of that I've added VVR and a regulated power supply (VVR, choke replaced with capacitor multiplier, and preamp stabilized with a Zener regulator). This lends perhaps a bit more of a modern element to the tone (it's still very dumbly however). DC heaters for the preamp tubes as well.
As you can probably guess, this is, by far the most ambitious DIY amp I've ever attempted, but, By Gum, I think I've pulled it off. There's still some tweaking to put the icing on the cake, but it's already sounding pretty damn glorious IMHO. Everything is up and running except the VVR, which I'll have a stab at this coming weekend.
Here's the schematic for this beast.
You can find pics of cabinetry and gutshots on my blog. Note that the layout file posted there was very preliminary and mistake ridden. I'll post complete and corrected layouts once I'm totally finished and satisfied.
Thoughts? Comments?
I've already been posting shots of the cabinetry over in the cab sub-forum here, I think things are now far enough along circuit-wise to introduce you all properly to my latest project, which is rapidly nearing completion.
Imagine if you started with what is basically a 80's 100W Dumble overdrive special circuit, then decided to add reverb and a high quality effects loop in as a transparent manner as possible? Been done, you say? Yes, but wait, there's more! On top of that I've added VVR and a regulated power supply (VVR, choke replaced with capacitor multiplier, and preamp stabilized with a Zener regulator). This lends perhaps a bit more of a modern element to the tone (it's still very dumbly however). DC heaters for the preamp tubes as well.
As you can probably guess, this is, by far the most ambitious DIY amp I've ever attempted, but, By Gum, I think I've pulled it off. There's still some tweaking to put the icing on the cake, but it's already sounding pretty damn glorious IMHO. Everything is up and running except the VVR, which I'll have a stab at this coming weekend.
Here's the schematic for this beast.
You can find pics of cabinetry and gutshots on my blog. Note that the layout file posted there was very preliminary and mistake ridden. I'll post complete and corrected layouts once I'm totally finished and satisfied.
Thoughts? Comments?
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