I'd use a mosfet CCS, like the BHSE uses. If you want to do some R&D, then an opto-coupler biased CCS would be my choice... or, add another tube and do a pentode CCS.
Shelly, I've heard the same rumor. However, I have access to a few bottles, and could probably make a deal for you on one. However, in my opinion, I prefer the SpringBank CV.
Ok, I have figured out what I need. Anyone have a recommendation for a flush mount pin socket? Also, called a miniature spring socket? Anyone used these before?
Frank, I am curious if you would consider the argument that sources which offer balanced output, even if this output isn't the one used, sound better on average than their single-ended only counterparts?
I'd contact this guy and see what he can do for you:
http://www.diyaudio....-class-amp.html
Perhaps just send the Gerber's to BatchPCB and get some one-offs made, or use the part position for your own veroboard layout.
Heading to the Fort and got bumped to first class! Yay! Any recommendations on a place to eat near BWI? Have a dinner tomorrow that I need to have an important conversation over
Does anyone happen to know the exact hole locations for the hifi2000 Galaxy Maggiorato cases? It seems .2"/.3" from the corner and a M4 countersunk screw. It seems that their tolerance isn't great, for example the corner radii.