An epoxy compound of high-purity N,N,N\u2032,N\u2032-tetraglycidyl-3,4\u2032-diaminodiphenyl ether is produced by: an addition reaction step of reacting 3,4\u2032-diaminodiphenyl ether with epichlorohydrin in a polar protic solvent at 65 to 100\xb0 C. The load is suspended from a cord that is constantly urged to a wound up position on a spool held above the load. Also provided are new concepts for associating throttling and braking elements with the throttle trigger. At least a portion of the first base well region is disposed between a base contact region and an emitter region within the second base well region. The information may be information specific to the appliance, such as model number, or may be information related to the network controller. The method utilized covalent linkage, combined with self-cleaning layer growth, to form pi-stacked, ordered, oritented monomolecular layers for use in a variety of electronic applications.