From: phil_a@tpg.com.au   
      
   "ZeeTso"   
   >   
   > i have no previous experience in building tube amps, and for my first   
   > project i want to build small 5W guitar/bass amp head.   
   > it will be simplified version of h&k b.a.t.t.:   
   >   
   > http://hughesandkettnermicroamps.weebly.com/batt--bass-master.html   
   >   
   > i'm a bit concerned about horizontal tube position which is necessary in   
   > order to achieve low profile design that i'm lookin for.   
   >   
   > is there any serious drawback with tubes if they are used like that?   
      
      
   ** Only that the EL84 may get too hot due to lack of ventilation.   
      
   If you fit a 35mm fan, blowing directly on the EL84 -  problem gone.   
      
   http://sigma.octopart.com/9362392/image/Sunon-Fans-GM1235PFV2-8.GN.jpg   
      
   Such a fan can be mounted internally and simply stirs the air inside around   
   your case - warming everything by a few degrees while cooling the EL84.   
      
      
   ...  Phil   
      
   --- SoupGate-Win32 v1.05   
    * Origin: you cannot sedate... all the things you hate (1:229/2)