Electronics Forum / Repair / February 2008

I have a wall wort that is 120v. In and 24VAC out that stopped working
the
other day...
I pulled the caseing apart and found that all it is,is a small

I just acquired a Lear Sigler brand, Bogen Communications Division, 30
watt, monaural audio amplifier, model 330A Series H-57, with tubes,
that has 3 empty tube sockets. Unlike the other sockets which have the
tube numbers on the chassis next to the sockets, these three don't.  

I am trying to work out a way to increase the light intensity with a
dial for a regular LED from a dollar store flashlight.  I don't know
much about the LED since I can't see any markings.
What would I need to buy from Radio Shack or an electronic store to do