I had an old Altec Lansing IM310 iPod docking station that I hadn't used in a while and decided it would make a good donor for all of the stereo parts. It was suited well for the project because all of the circuitry and speakers were sized perfectly to be transplanted into the old Westinghouse radio case.
I was very impressed with how well this project turned out. When it was all finished, it actually looked like the Westinghouse radio was designed with an integrated iPod dock!
Tools you'll need:
-Soldering iron and solder
-Dremel (This is an absolute must!)
-Drill and bits
-400 grit sandpaper (Wet/dry)
-Hot glue gun
-Jigsaw (only necessary if you're replacing your radio's backing)
-Plastic iPod dock connector (You can buy a pack of three on Ebay for $5)
-A donor iPod dock/stereo or build your own from a kit amp
-Paint (Whatever colour matches the stock colour of your radio best)
-A toggle switch
-Some MDF board (only necessary if you need to replace your backing)
-Some small miscellaneous hardware parts depending on your exact project (may vary)
Step 1: Clean All the Filth Off and Remove the Guts
The third photo shows me drilling out the rivets in order to remove the tube sockets. I wanted to take them out because it left a level surface to mount the new internal components to afterwards. At this point, you also want to temporarily remove everything from the inside of the radio, as the next step will involve making some cuts in the case and then prepping it for primer and paint.
Step 2: Mark and Cut Your Dock Slot
First, you want to mark the centre point of the top of your radio width-wise. Then you need to decide how far forward you want your dock connector to be mounted depth-wise. I chose to mount mine closer to the front of the radio as opposed to centring it. After you've figured out exactly where you want your connector to be mounted, put some masking tape over that area and place your dock connector upside down on the tape and trace it with a marker or pencil.
Next, grab your Dremel with a cutting disc and cut a basic rectangular hole out of the area you've traced, leaving a bit of extra material around the edges. Then grab a grinding bit and use it to grind down the excess material around the edges and carve the rounded corners out. Then smooth it all with a sanding disc/wheel and by hand with some sandpaper afterwards.
Pictures are of the masked off area before cutting and with the dock connector inserted after cutting to check that it fits.
***Also, since we will be integrating the dock connector permanently to the radio, it is a good idea to use a universal (largest) iPod dock connector, so that any iPod will fit in the dock. Pictured is the one that fits my 5th generation Nano, but for the final product, I used a universal connector, so any iPod with the 30 pin connector can be docked.
Step 3: Mount Your Dock Connector
So first off, insert your dock connector into the hole you cut out in the previous step. Before you secure it, make sure that no part of the dock connector is raised higher than the top surface of your radio. Once you are satisfied with your positioning, flip your radio upside down and use your hot glue gun to firmly secure the dock connector in place from the underside. Then, flip your radio back over.
You should then give the entire outside area of the radio (including your dock connector) a light sanding with some 400 grit sandpaper, just to smooth it a little. Then, mask off any areas you don't want paint on (such as the dial face) and put a coat of primer on.
After it dries, take your spot putty and put a coat around the edge of the dock connector and the surrounding area of the radio case. If your radio is completely flat across the top, you may get away with just a single coat of spot putty. If so, great! If not, don't worry. Just take your time.
After your spot putty dries, you want to get a sanding block (a scrap piece of wood will work fine) and wrap your 400 grit sandpaper around it. Use long strokes of your sanding block across the entire area of your dock connector and be sure to wet the sandpaper frequently during sanding. If after sanding, there are some low spots, you need to repeat this entire procedure as many times as it takes. Clean and dry off the radio, prime it again, add another coat of putty, and sand again with your block. Repeat this process until your dock connector looks like it was moulded into the radio case!
The first photo shows the universal connector mounted in after sanding, the second photo shows the first coat of primer, and the third photo shows the first coat of spot putty. In order to streamline my connector with the case, I ended up having to do 4 light coats of putty.
Step 4: Add Your Final Coat of Primer and Give It a Light Sanding
Step 5: Paint It!
Step 6: Work on the Insides!
My radio (as with pretty much every radio of it's day) was originally mono, thus was only designed to hold one speaker. This is where the size of the IM310 components really come into play. Since I wanted two speakers to fit where there had previously been only one, I obviously needed two relatively small speakers. The IM310 speakers were perfect. To secure them, I actually used the original speaker mount for the top speaker holes and a mending plate to hold the speakers together in place on the bottom.
Now, the really tricky part of this whole thing was to change the sliding motion of the IM310's volume control to the rotary motion of the radio's original volume knob. I know what you're thinking. Why not just rewire the IM310's volume control to a rotary potentiometer? Well, I couldn't find a schematic anywhere and couldn't figure out exactly how the wiring worked on it. It seemed a little different from a standard potentiometer, so I didn't want to mess around with it. My only other option was to somehow mechanically connect the rotary pot from the radio to the slide pot of the IM310. So how I accomplished this was by first drilling a small hole through the shaft of the rotary pot on the radio. Then I cut a metal plate and drilled a hole near the top and mounted it to where the rotary pot mounted to the radio chassis. Then I used some double sided tape to mount the slide pot to the metal plate below the original volume pot. THEN I plastic welded and glued a small piece of plastic to the actual slider part of the IM310 pot which I drilled a hole in both ends of. Then I put a cotter pin through the hole I drilled in the rotary pot's shaft and connected the end of the cotter pin to the hole in the piece of plastic I welded to the slider with a piece of a paper clip. *Note: Be sure to just bend the ends of the paper clip around the cotter pin and plastic piece on the other end. If you glue them, it will bind as soon as you try to rotate the knob. I know this all sounds like a lot of work and also sounds complicated, but it's not as bad as it sounds. The picture hopefully will simplify it a bit haha. Feel free to ask any questions though!
After that ordeal, I mounted the main circuit board. I used a couple of plastic spacers to raise it slightly above the metal shelf to avoid shorting it out, then secured it with two machine screws/nuts. I then hot glued the IM310's iPod 30 pin dock terminal board underneath the dock connector, with the 30 pin terminal coming up through the slot in the integrated dock connector. Note: You have to glue the terminal board on with the chassis of the radio sort of half inserted into the radio case unless your wiring is long enough to allow the chassis to be out of the case.
I then cut some pieces of foam up to use as insulation behind the speakers on the lower portion of the radio.
The first photo shows how the speakers are mounted and also the metal shelf above them where the circuitry will be mounted, the second and third photos show the main board and 30 pin connector board mounted inside, the fourth photo shows the whole mechanical linkage for the potentiometers, the fifth photo shows the insulation in place behind the speakers, and the sixth photo shows the secured 30 pin terminal through the dock connector. I also wired up a single LED at this point and secured it under the centre of the dial face and linked it to a toggle switch which I placed on the back (next step).
Step 7: Make a New Backing and Attach Your Power Switch
Step 8: Plug It In, Turn It On, and Blast Your IPod!
I hope you enjoyed this instructable. Feel free to ask any questions and make any comments! Also, I've entered it in the 'Vintage' Contest, so if you like it, please vote!
Thanks for looking!