I would claim that you're uch better audio
designer from actually
 designing soemthing (even thoguh you had transistors fly across the
 room)
 than you would have been if you'd never had a go. 
 Definitely. I did go on to design and build a preamp and power amp that
 worked quite well, and didn't blow up.
  Perhaps I'd metter not mention the time I had a
pair of EL34s with
 the
 anode glowing bright orange/yellow. Of coruse I had managed to short
 out
 the grid bias supply... 
 I suppose they still worked after a fashion afterwards? If that had
 happened to a transistor (except possibly a 2N3055) I wouldn't have
 expected it to work afterwards.
  Never made _that_ mistake again. 
 The beat learning experiences are the mistakes one makes.
 /Jonas