A dispenser for magnetic adhesive tape has a housing and a blade base. Specific adaptations for urological and gynecological applications, for example kidney stone removal and BPH treatment, are also described. A decryption-only key the encryptiondecryption key is embedded in a program for reading. The I and Q components of the first and second signals may be mixed by a plurality of mixers, and the outputs of the mixers may be combined to generate an in-phase component of a local oscillator signal and a quadrature phase component of the local oscillator signal. The transformer has a plurality of output windings having an equal turn ratio, each output winding in parallel with a battery of the battery string, to provide a secondary charging current to a battery in the battery string. A coverage hole detection signal and confidence information may be received and evaluated, deciding on a potential coverage hole reducing or closing process depending on the evaluation.