Super shunt regulator: dedicated plans?

[hollowman]

This may somewhat of a redundant message so apologies in advance for use of precious bandwidth!

I've unsuccessfully searched this sub-forum (Power Supply Design) for dedicated designs which emulate the form, fit and function of myriad commercial three-terminal "super shunt regulators". Specifically:

http://www.tentlabs.com/Products/cdu...unt/index.html

http://www.audiocominternational.com...s_large/89.jpg

Do such plans exist? And do these plans allow for modular voltages. E.g. as listed for various modes on this page:

http://tinyurl.com/2rrte9

http://www.tentlabs.com/Products/cdu...unt/index.html
(see under Available Versions)

Plans I'm seeking would not necessarily need a PCB layout...just a well-labeled schematic.

Thx for any info you can provide.