80 of 10 for sale, brand-new and used.

Buzzer, Piezo, Circular, Sonalert, Panel Mount, 68-80 dB(A), Continuous, 42.85mm Mallory #SC110 The Mallory Sonalert produces an audible tone by internally creating an oscillating signal which drives a piezo ceramic transducer mounted in a sound chamber. Self driven piezo ceramic transducers are superior to electromagnetic buzzers because they produce no arcing, electrical noise, or mechanical wear during operation.

i000000 Lot of 2 - SC628A - Mallory Sonalert - 24 V6-28VDC - Protected LED Alarm Buzzer Description ITEM TITLE

Piezoelectric Transducer, Sonalert, 6-250 VAC/DC, 2900 Hz ±500 Hz, 68-80 dB(A) Mallory #SC250 The Mallory Sonalert produces an audible tone by internally creating an oscillating signal which drives a piezo ceramic transducer mounted in a sound chamber. Self driven piezo ceramic transducers are superior to electromagnetic buzzers because they produce no arcing, electrical noise, or mechanical wear during operation.

Piezoelectric Transducer, Sonalert, 6-28 VDC, 4500 Hz ±500 Hz, 68-80 dB(A) Mallory #SC628HP The Mallory Sonalert produces an audible tone by internally creating an oscillating signal which drives a piezo ceramic transducer mounted in a sound chamber. Self driven piezo ceramic transducers are superior to electromagnetic buzzers because they produce no arcing, electrical noise, or mechanical wear during operation.

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Lot of 10 6N1P = 6DJ8 = ECC88 RED GRID Double triode tube Orel 1988