Note: Electrical engineering knowledge not necessary for this project, I'm just a mechanical guy with a good understanding of "basic" wiring.
Step 1: Supplies!
- Sonic Impact 5066 T-amp
- Apple PC 5.25 Floppy Drive
- 12V, 2A Power Supply (min 1.5A for substitutes)
- ALPS 50K Log Stereo Potentiometer (Volume)
- 1/4" Volume Knob
- 12VDC, 6A DPDT relay (or even SPST)
- 4x Speaker Terminals
- Stereo RCA Jacks
- Power Cord
- Misc Wiring
Assorted Cutting Implements
Step 2: Modifying the T-Amp (Optional)
I ended up performing the "Input Mods - Version 3"
Prior to attempting to stuff everything into the floppy drive I used a tupperware container as a prototyping enclosure. Things often go wrong when I play with electronics, so I wanted to make sure everything was happy before I started modifying the floppy enclosure. See the pics for a more detailed explanation.
Step 3: Gutting the Floppy Drive
I ended up removing most of the drive's internals, but kept the door lock mechanism intact, as I intended to use the flip of the lock as the ON/OFF switch.
See the pictures for more details on the gutting/cleaning process
Step 4: Fitting the Power Supply
Since the power supply had the power prongs sticking out of the back of it, I first had to remove them by desoldering, then replaced the prongs with a power cord. If you're lucky, your power supply will already have a cord!
After some playing around, I found a nice spot for the power supply that required only minimal modification to the floppy drive's internal frame.
Step 5: Wiring the ON/OFF Switch
I didn't check it out, but assumed that the microswitch wasn't rated for the 12V, 2A that the amp would be using . . . thus, the microswitch was used to control a relay. The relay was also something that I had laying around, they can be had at radio shack or even auto-part store for a few bucks (see supplies list)
Step 6: Fitting the Volume Knob/Pot
Once I found a suitable spot for the volume knob, I had to make some room for it . . . which included some cutting, some bending, and of course some hammering!
Step 7: Add Input/Output
Step 8: Button 'Er Up!
You also may be wondering where the actual amplifier was mounted! Unfortunately I didn't get a picture of it (I got lazy with pictures at the end), but it was just screwed down to the underside of the cast aluminum frame. Trust me it's under there (see comment on pic)!
I also removed the power LED from the amplifier board and added an extension wire to power the original LED that came with the floppy drive (disk-read light). This way, when the amp was switched on, the LED on the front of the floppy would also turn on.
Last but not least, I have to admit, this might be a pretty rough Instructable to re-create. My intentions for posting it were more to inpire others to find creative uses/reuses for things. I really liked the nostalgia I got from Apple's design and eventually figured out a practical use for it on my computer desk!