Bird Wattmeter & Dummy Load. Compact 2.5KW, 25-1000MHz, 50 Ohm dummy load with matching wattmeter. BRAND NEW in original shipping container, Model 6737 oil filled (water cooling recommended above 200W). Wattmeter head contains spare diode. $450 + s/h from 22901. 4 units available. E-mail: [email protected] for details and photos. 73, Mike, [email protected]