A device and method for stabilizing a dryer assembly in a reactor pressure vessel of a nuclear reactor including a spring assembly dimensioned and positioned within the reactor pressure vessel for applying a stabilizing force to the dryer assembly relative to the reactor pressure vessel. The guide structure presents a guide, surface over which the longitudinal sections of flexible material can pass, the surface being configured to facilitate spreading of each longitudinal section from the laterally reduced condition. A second electrode is formed over the organic compound. When clamped down using the clamping structure, the pressure clamp holds the package leads on a printed circuit board ensuring excellent electrical contact between package leads and circuit traces and surrounding ground planes, obviating soldering and desoldering the leads to the circuit board. The flat soil agitator bars are oriented to minimize lateral movement of agitated soil.