Yamaha DTXpress/DTXplorer/DTXtreme

emf said:
> --- In DTXpress@yahoogroups.com, "Keith" <keith@k...> wrote:
>> If you like Hi-Fi, then you might like my Castle Harlech
>> speakers with two different quarter wave pipes (powered
>> by a 20W class A amplifier).
>
> Keith,
<snip>
>  Seriously, is the 20w class A amp a valve design?

As amplifier "classes" seem to be of interest, in case anyone wants to
experiment with a Class "D" amplifier design ("D" or "Digital" amplifier
that creates next to no heat at rated power, *very* efficient), Ramsey
has them for sale as kits with a very good set of "teaching" docs
included so you learn amplifier theory as you build. Their kit is here:

http://www.ramseyelectronics.com/cgi-bin/commerce.exe?preadd=action&key=UAM2

or

http://tinyurl.com/5hgqh

Vern

-- 
Vern Graner CNE/CNA/SSE    | "If the network is down, then you're
Senior Systems Engineer    | obviously incompetent so why are we
Texas Information Services | paying you? Of course, if the network
http://www.txis.com        | is up, then we obviously don't need
Austin Office 512 328-8947 | you, so why are we paying you?" \ufffdVLG