6900K4 Series 20 Watt TWT Amplifier  
					Features  
					• 4.0 TO 18 GHz  
					• Worldwide Support Centers  
					• Octave Bandwidths or Greater  
					• Optional GPIB Control  
					• 24 Hour Hotline for customer support  
					(800) 231- 4818 or 1-650-846-3700  
					• One Year Warranty (Unlimited Hours) • Meets EMC 89/336/EEC  
					• CE marked and TUV approved to  
					international safety standards  
					For test and measurement applications that require RF power of 20 Watts, CPI offers the  
					6900K4 Series power amplifier. For testing on antenna ranges, in EMC chambers or on  
					a test bench, CPI provides equipment built with quality and reliability that you can trust.  
					The 6900K4 series amplifiers are constructed with proven reliable all metal-ceramic  
					travelling wave tubes (TWTs), which are renowned for their high power and wide band  
					capabilities. These TWTs have a wide range of applications and are readily available,  
					resulting in CPI’s ability to offer additional tubes in a timely manner. The power supply  
					for the 6900K4 series has a calculated MTBF of more than 41,000 hours. Combined with  
					CPI TWTs, the 6900K4 series amplifier provides the industry standard for dependability.  
					The 6900K4 series TWT amplifier has a full line of standardized options including  
					remote control, input and output isolators and harmonic filters. For ATE applications,  
					IEEE 488 bus controllable amplifiers* are available, with internal GPIB cards or external  
					modules. More than a thousand CPI 6900K4 series amplifiers are used throughout the  
					world, performing over a wide range of specifications, in a variety of environmental and  
					operating conditions.  
					CPI 6900K4 series TWT amplifiers are manufactured with the same quality as all CPI  
					amplifiers and are backed by CPI’s worldwide 24-hour customer support network that  
					includes 9 regional factory service centers. Quality, reliability and product support are  
					integral parts of your CPI power amplifier.  
					Power  
					(Watts)  
					20  
					Freq  
					(GHz)  
					4-8  
					8-12.4  
					12.4-18  
					8-18  
					Gain  
					(dB)  
					35  
					40  
					40  
					O/P  
					Conn  
					N
					N
					N
					Model #  
					VZC-6961K4  
					VZX-6981K4  
					VZU-6991K4  
					VZM-6991K4  
					VZV-2776K4  
					20  
					20  
					20  
					20  
					40  
					30  
					N
					N
					4-18  
					For special frequency ranges and options, please contact the factory.  
					* For models with integral IEEE 488 capability, please refer to publication MKT 45,  
					6900K6 Series