frequency, symmetrical about axis
Open Circuit Voltage: -67.0 db/Pa (0.45 mV) (1 Pa = 94 dB SPL)
38.4 dB equivalent SPL in a 1 millioersted field
WH20QTR as a wired microphone:
Positive sound pressure on diaphragm produces positive voltage
on tip with respect to sleeve (ground) of microphone output phone
plug connector.
Attached 1.22 m (4 ft), small-diameter, shielded, PVC-jacketed,
two-conductor.
WH20: 63g (2.2 oz) WH20TQG: 63g (2.2 oz) WH20XLR: 98g (3.5 oz)
Black thermoplastic housing; stainless steel grille; black TEFLON¢ç-
coated stainless steel wireframe; flexible plastic-clad monel