Thanks Mirwi,

I started with a MOSFET but it wasn't doing what I wanted. So, I experimented with the transistors I had on hand and chose the one that worked best for me. 

However, I can't remember if I went into detail about the part change between episode 1 and 2. 

Thanks for the clarification. You know, an episode on the finer points of transistors might make a fine HPR. ;)



