As you can tell by the title, I have a shoe box radio that is in a significant state of disrepair (this is the first time in months that I have taken it out). So to fix this problem, I intend to put the Amplifier (with the radio) in a new housing, one made out of wood and a little sturdier.
While I was at it I figured that I would upgrade the control circuit to something a little more advanced and reliable. To start, the power supply is going to be upgraded from a cheap little power supply made from Radio Shack parts, to something more sophisticated made from parts from Radio Shack.
The control circuit is a cheap little circuit that I hastily put together. Now I will remake the entire circuit so that it is more organized and will last longer (due to the neglect in focus when I made it, the relay that works the fan is being "over used")
Some of the ideas for my new circuit are as followed:
1) A fan that has 4 different control positions (the old one only had 2)
2) A power supply that has push button switches
3) I temperature limited fan for the power supply (because the fan makes so much noise!)
4) A heater set to ~25*F (-3.89*C)
5) An LED VU meter using LM3915 (or something cheaper)
I would also like to throw in Audioguru's FM transmitter to send the signal out to a more powerful radio that may be close buy. I just need to know a little more about it first (I'm reading through the thread)
I went ahead and include the schematics that I have completed so far below, I still have a few more... non-chicken scratch schematics to make. I will post them as I finish them.
But as I said, any other cool ideas (preferably cheap ones) would be appreciated.
Thanks, Vince