The invention is related to a multi-chip-module and to a method for its manufacture. , a compressor is instantly started at normal operation. The electrosurgical generator includes an electrical energy source, voltage and current detectors, equalizers that estimate the voltage and current applied to a load, and a power calculation unit that calculates estimated power based upon the estimated voltage and current. The ventilator tube retention strap is wrapped around the neck of a patient, and the loops are coaligned to receive in frictional engagement the medical ventilator tube, which is then attached to an external tube of the tracheotomy tube apparatus and maintained thereon by the ventilator tube retention strap. The reflective elements of the resonant cavity are designed to contain the radiation of the laser sources within the resonant cavity and to transmit an equal amount of each of the generated set of wavelengths.