We haven't tried it yet, but the best repair I have heard of is to replace the micro drive in an iPod Mini (1st generation) with a CompactFlash card.
A variable-frequency drive (VFD) (also termed adjustable-frequency drive, variable-speed drive, AC drive, micro drive or inverter drive) is a type of adjustable-speed drive used in electro-mechanical drive systems to control AC motor speed and torque by varying motor input frequency and voltage.
The conductive strips provide electrical connections between uninsulated contact surfaces of printed circuit boards such as the connector plate of the micro-drive, that holds the brain electrode wires, and the preamplifier board of the recording system.
A total of 1549 penetrations (873 in the young rats, of which 600 were in the HP-representation and 273 were in the FP-representation; and 676 in the old rats, of which 310 were in the HP-representation and 366 were in the FP-representation) were made perpendicular to the cortical surface of the primary somatosensory cortex using a motor micro-drive (1 µm resolution) to advance the electrodes.
Pipettes were advanced into the cerebellum with an oil micro-drive (Narishige, Tokyo, Japan) and signals were pre-amplified (custom-made preamplifier, 1000x DC), filtered (CyberAmp 320, Axon, Molecular Devices, Sunnyvale, CA, USA), digitized (Power1401, CED, Cambridge, UK), and stored for offline analysis.
As with the T440, the hard drive options include a 1TB drive with a 16GB "micro hard drive".
The Knudsen number for micro comb drives indicates that the flow is a slip flow.
Squeeze damping and viscous damping are important energy dissipation mechanisms in oscillating micro comb drives.
In this paper, a spatial hybrid motion mechanism with 3-DOFs is developed that integrates two types of motion through only one compliant mechanism: a macro motion driven by DC servomotors for large workspace and a micro motion driven by PZT actuators for high precision.
