Martin, Fred, and River Rat,
Thank you all for your replies. Martin, yes, that is what I am after. Many Thanks. Fred, I will take a look at your suggestion. I need a unit that will give me around 20 rounds per minute.
River Rat, Thanks. I am VERY familiar with Frank and his sound units. They are first rate, but I have not seen one that will combine sound and drive a LED. I'll call him anyhow.