What would you like to DIY ?

GS in SRG II review thread -

What I would really like to see is a rekindling of interest in DIY audio-electronics in this land, somehow. Why? So I can make money? If you think that you're missing the boat! Yes, I do have to earn a crust, and audio is how I do it, so therefore I guess money does come into it, but I yearn for those old days of DIY audio projects. To those who really want to get involved in DIY audio - even some of the "crazy" "hot-modding" aspects, I'd like to do something about it. But this old man (hang on, I'm not that old...) still uses vinyl, so it's suggestion box time! Not just "DAC" or "Power-amp" etc, but put some flesh on to your suggestion... now tell me what you want, what you really, really want? But somebody - please start it off on another thread

1/ dual output PSU1 type/replacement linear PS.

2/ utterly transparent linestage : buffered output, gain optional, 4 or 5 inputs, 2 outputs, dual mono stepped attenuators (or stereo and balance control but dual mono seems better to me).  Inputs completely isolated from each other so no signal leakage across inputs, eg from constantly on tuner, possibly relay switched or signal and ground switched on rotary selector switch.   Preferably one box with suitably shielded traffo.  Size approximately 3 Solos wide, 1 deep and one high.

High quality input power filtering, IEC socket.

Prefer if all sockets are panel mount to reduce possibility of fractured solder joints from tight fitting plugs being taken off and on.