+1, the concentric arcs look like a sign of an antenna, sine waves will look nicer...
I have F3's and really like them. I've been wanting to build the F4 for sometime and in anticipation I built the Impasse preamp. The transformer group buy pushed me over the top. I had heatsinks and power supply boards from previous group buys. When they are all together I can get a good AB comparison.
Just speaking because I can, I kind of like that anodized black front plate.
If you really wanted to get kind of in your face about it (well, too late for that since the etched circuit diagram is staring you in the face already), then put a diode symbol in the circuit diagram for the power indicator, and drill a small hole corresponding to that and put in a diode.
But for mercy's sake, use a relatively conservatively rated light output diode (your amp, your colour choice, but I am partial to the orange or green ones). I was victim to an amp last week and I so wanted to turn off the amp as the light from was so agonizing (remember at the end of Indiana Jones when they open up the ark? That amp used it as inspiration).
Since I am full of opinions when projects aren't my own, I would make a slight design recommendation to the face plate -- make it overhang the edges top, bottom, and sides by 2 or 3 mm than the side fins, bottom plate, and top plate.
Furthermore, make the diagram maybe 92.5 - 95% of what you have it on the current face plate mock up. It seems to be too close to the top edge.
Otherwise, it is very sweet looking.
If you really wanted to get kind of in your face about it (well, too late for that since the etched circuit diagram is staring you in the face already), then put a diode symbol in the circuit diagram for the power indicator, and drill a small hole corresponding to that and put in a diode.
But for mercy's sake, use a relatively conservatively rated light output diode (your amp, your colour choice, but I am partial to the orange or green ones). I was victim to an amp last week and I so wanted to turn off the amp as the light from was so agonizing (remember at the end of Indiana Jones when they open up the ark? That amp used it as inspiration).
Since I am full of opinions when projects aren't my own, I would make a slight design recommendation to the face plate -- make it overhang the edges top, bottom, and sides by 2 or 3 mm than the side fins, bottom plate, and top plate.
Furthermore, make the diagram maybe 92.5 - 95% of what you have it on the current face plate mock up. It seems to be too close to the top edge.
Otherwise, it is very sweet looking.
I am partial to the complex diagram because it a perfect representation of what is inside the box and it just looks cool.
