A Tamaguchi. I got tired of feeding, educating, and playing with the little worm.
Lets gut it.

From the front

F=

From the back with the battery cover removed. That's a Lithium CR2032 battery.

There is a capacitor and a crystal in the upper right of this side of the circuit board and a line to the cheap speaker. Seems all these toys use similar speakers nowadays.

Here is the front of the circuit board. Note the gold plated contacts and the epoxy chip cover.

Here is all the stuff together for the last time before I throw it out. I will recycle it actually and sell the electronics for about 50cents a kilo.

A cheap solar plant

 

Two screws on the bottom

 

Inside view

The leaves

Some tin weights. Tin is now about $20 a kilo. In 40 years economical world supplies will run out and the price will rise.

 The coil

The solar cell showing over 1 volt. This is hard to do with only two hands. One is after all holding the camera.

 

The capacitor to store up charge till the pulse is sent to the coil to make the leaves move.

Here is everything all together.

Toshiba laptop HDD tear apart

Toshiba HDD2183 Tear Apart

Here it is a 60GB drive from a laptop to tear up. My scrap dealer buys stuff like this from me for 50 cents a kilo. I'm pretty sure he is ripping me off. I will tear this one up and take a look see.

Here we are from the front.

Here it is from the back.

(Or should I say top and then bottom)

The controller board comes off after four regular screws are removed.

The chips on the board are:

Hynix hys7v161610DTC-8

probably the memory buffer chip

Toshiba 88i8210-bal

a serial to ATA bridge

Arm Toshiba Alpha-3-f

I think you can run Ubuntu on these.

M88c5520l

A whattheheckula controlled by the rising edge of the clock.

Ti TLS2255

A voice coil driver module. This controls the read write head.

After removing six Torx screws on the front the stickers need to be removed to get the one that is always hiding.

Here is a pic of the internals. You can see how shiny the platters are.

These aluminum stickers are on the outside of the cover. Perhaps they are for reducing magnetic interference. Some Desktop drives have thick stainless plates like this.

Here is the voice coil read write head removed. I'm not sure how they work but perhaps as the frequency in the copper coil is increased or decreased the coils position is changed with respect to the very strong nickel plated neodymium iron boron magnet.

Here are the platters removed. Hey I can see my face in it.

Now I can lay all the junk out on my workspace.

To get out the drive motor I had to crack the aluminum case. You can see the copper coils and the ring inside the aluminum cup is the magnet. say 5500RPM.

Taking another look at the cover it looks like it is chrome shiny. But feels light like aluminum. It makes a strange crinkle feeling when I bend it and my gut tells me it is plated.

The aluminum base for everything. In my parts aluminum sells for about $1 a kilo.

The HDD platters are made of some sort of glass or ceramic as when I tried to cut them to check what metal they are they shattered. I have heard that some are now plated with platinum or some expensive alloys.

The connector fingers and the but of plated gold colored stuff is actually gold (Au). Just a very thin plating. Where I am circuit boards like this are worth $5 a kilo but I hear in other places people are paid up to $30 a kilo for their old computer boards.