Electroencephalic energy transmission as a function of frequency for solder electrodes was investigated, since this type of polarizable electrode has multiple advantages over commercial nonpolarizable types for clinical evoked response audiometry. The electrode impedance was measured and replicated at nine infrasonic frequencies (0.1, 0.5, 1.0, 2.0, 3.0, 4.0, 10.0, and 20.0 Hz) in saline solution. The results of the investigation revealed that the impedance decreased as the frequency of a 1‐mV sine wave increased. At frequencies of 1 Hz and less, the impedance was high (17–30 kΩ), but dropped approximately 3 kΩ per octave from 11 Ω at 2 Hz to 3Ω at 20 Hz. There does not appear to be any significant advantage of a nonpolarizable electrode (e.g., silver/silver chloride) over the solder‐polarizable one as long as the latter has a surface area of at least 4–5 mm2and the EEG amplifier input impedance is not less than 1 MΩ. Further advantages of cost, construction, maintenance, and application in a population with a high damage risk to electrodes is discussed.