A 230 Volt Light Bulb Load for Testing PA1, PA2, PA3, SPA4 or SPA5 Amplifiers

This load uses 230-240 volt incandescent lamps which should be available in most EU and other countries outside of North America.
4-Bulb 230V Load This is a 4-lamp load. it uses 4 x 230-240V 150W incandescent light bulbs. Coax Cable Connection to Load The coaxial cable is connected to the termionals of the load. The center wire of the coaxial cable is connected to the wire that connects to the center terminal of all the light bulbs. The shield of the coaxial cable is connected to the wire that connects to the screw base shell of all of the light bulbs. 76 Volts Lamps shown with 76 volts DC to the amplifier. 133 Volts Lamps shown with 133 volts DC to the amplifier.
190 Volts Lamps shown with 190 volts DC to the amplifier. 230V Lamp Load Data This chart gives the expected readings when using the load to test your amplifier. Click to download as a PDF.