An apparatus comprises a data storage medium; a remote unit; and an authorization unit for encrypting information to be stored on the storage medium and for controlling access to data stored on the data storage medium in response to the access control signals received from the remote unit. The circuit includes a preconditioning input circuit, a Buck converter circuit with over voltage protection, flyback and boost circuits, and a shutdown circuit configured to drive a predetermined electrical or electronic device. A first dielectric layer is formed overlying the diodes but not the spaces. The reciprocating motion of the sleeve can be converted into rotary motion. The circuit may include a plurality of DUTs, each DUT connected in series with the output current of a controlled current source, with a voltage limiter connected in parallel with each DUT.