[O] Tangling text files

[dlc]

How do I tangle txt to a txt file?

#+TITLE:  Centos 5 Apache Configuration
#+AUTHOR: David Coate

* Basic Conguration
* Php Settings
* Virtual Host
  e.g.  for apache configuration
** example.com
    Use this as main website, use drupal,  various other notes

#+BEGIN_SRC: txt :tangle vhost.conf
ServerName Example.com
DocumentRoot "/var/www/example.com"
#+END_SRC:

** companyb.com
    notes about company b.
#+BEGIN_SRC: txt :tangle vhost.conf
ServerName Companyb.com
DocumentRoot "/var/www/companyb.com"
#+END_SRC:

... and so on for 40 more web sites.

I still want to be able to export this as HTML to document to others  
what i've done and use the org file to maintain the webpage and the  
source conf files.

Same issue for documenting my configuration files for postfix,  
dovecot, drupal settings, php.ini settings.

I'm sure this is easy, but searching the org manual or googling is not  
getting me the right answer.

#+BEGIN_ASCII and #+BEGIN_EXAMPLE  seem to be for exporting only and  
not tangling.

Thanks!
David