On Fri, 15 Jun 2012 08:30:50 -0700 (PDT), spamtrap1888
wrote:

The cheapest Sola constant voltage transformer still costs several
hundred dollars.

Times have changed. While Sola products are rather expensive, there
are plenty of cheap constant voltage transformers on the market. For
example:
http://www.ebay.com/itm/260591849083
http://www.ebay.com/itm/360320802787
Like all good resonant power transformers, they buzz and run warm.

--
Jeff Liebermann
150 Felker St #D http://www.LearnByDestroying.com
Santa Cruz CA 95060 http://802.11junk.com
Skype: JeffLiebermann AE6KS 831-336-2558