For any members interested in this kind of thing, here is a thread on the building - or more accurately, rebuilding - of a First Watt clone amplifier. As I'm currently having to spend a lot of time waiting on parts (which due to geography can take up to 4 weeks to arrive) I figured this might be a nice way to fill in the downtime. For those unfamiliar, First Watt is kind of a sister company to Pass Labs, both selling the products of owner and designer Nelson Pass. With First Watt, Mr. Pass indulges himself designing low-power, simple circuit, Class A amplifiers. He will also, very generously, release the schematics of these amps for use by the DIY community. About two years ago I constructed my current F6 amp thanks to the guide and enormous threads found on the diyaudio forum. Seen below, it is a relatively standard example of its type, utilising the boards sold in the diyaudio store along with the recommended case and transformer. DIY can be fun, especially since you get the benefit of listening to (and hopefully enjoying) your efforts once done, but I also try to treat each project as an opportunity to expand my limited electronics knowledge and attempt things I haven't done before. The main focus of this rebuild is the power supply. More an alteration than a full redesign it incorporates a few additions to the standard supply, a change in filtering type, and some custom parts. Here is the project in its current state. The circuit board wrapping around the transformer is my first experiment in PCB design, and it seems to work, but hasn't been tested under load yet. For the filter section, two large inductors sit at the rear of the case and the empty area in the centre is the future location of the capacitor bank which is waiting for the delivery of a custom mounting plate. This is the planned layout for the amplifier. I'm not totally sure how this thread will proceed. There's certainly more build photos to be posted. It may also be worth sharing some of what I've learned about PSUs in general, if that's to anyone's liking. Lastly, and rather self-servingly, my hope is that other forum DIYers will let me know where any of my info/assumptions are wrong, if I'm making any construction blunders or poor choices etc. Any feedback will be greatly appreciated.