Based on a USW - Receiver Kit and the idea to have a Radio with a really good sound I decided to make a radio wit a special speaker system.
The Radio is incredible because of its sound. The sound fills the whole room.
Let´s see how to make it.
The green "tube" looks like the old "magic eyes".
Step 1: The Parts
- A DIY radio kit
- A speaker
- Some pieces of MDF
- Water based stain
- Wax stain
- Brass screew
- Brass washers
- A PVC tube
- Very thin ply wood
- A precise potentiometer (10 turns)
- two knobs
- A switch
- A aluminium cone
- A refurbished lamp
Step 2: Preparing the Panels
Drill holes for the mounting of the two potentiometer and the screws to mount the panel to the base stand and the tube holder.
Drill a hole for the copper fitting that holds the refurbished lamp.
Step 3: Building the Base Stand and the Tube Holder
Glue a 21mm piece of MDF to the base plate. On this piece of MDF the panels will be mounted.
I used several pieces of MDF to build up the stand.
I cut a hole with the exact diameter of the PVC tube and glued to the stand as well.
I used normal stain first and after it ahs been dried I used wax stain for the finish.
Step 4: Preparing the Tube
I glued thin ply wood around the PVC tube and than I stained it.
After this I glued inside the base stand.
Step 5: Building the Speaker Head
In the top plate I cut a hole for the aluminium cone and the bold´s.
In the opposite plate I cut the hole for the speaker and the bold´s as well
I used steel nuts and small tubes made od steel to mount everything together.
Step 6: Mounting Everything Together
I glued the tube into the tube holder and then I glued the speaker head on top of the tube. Picture 1 to 3
Than I glued the panels to the base plate and the tube holder. Picture 4.
I mounted the electronics inside the case and connected a 12V power supply via the switch to the LED in the tube and the radio electronics.
Then I mounted the knobs to the potentiometers.
I used a 50cm piece of aluminium as the antenna and mounted it on the back.
Step 7: Inside the Case
You can see the DIY Kit for the radio. It is a bit different from the KEMO kit but its doing the same thing.
The tuning i by a varicap and I used a poti with 10 turns to make the tuning easier.
On the button of the page you can see the holder for the antenna.
The kit was obtained from ebay.