Amazon.com: Aexit 20 x Fixed Resistors 1/2W Watt 24 ohm 24R Carbon Film Single Resistors Resistor 0.5W : Industrial & Scientific
TWTADE SSR-25VA 500K ohm 1/4W to 380VAC 25A Single Phase Solid State Relay Resistance Voltage Regulator Authorized+Heat Sink+Potentiometer+A knob SSR-25VA: Amazon.com: Industrial & Scientific
EDWARDS 874-G5 113 DB at 1 M, Vibrating Horn, 24 VAC, 5.2 OHM, Surface Mount, 103 DB at 10 FT, 50/60 HZ, 15.1 VA, 0.63 AMP: Amazon.com: Industrial & Scientific