KAA1020 25 Watts, 10 kHz - 230 MHz RF Amplifier  Download Full Data Sheet   The Model KAA1020 is a general-purpose, wideband RF power amplifier for signals in the 10 kHz to 230 MHz frequency range. No tuning, band switching, or adjustments of any kind are required to operate this unit. Power output is in excess of 25 Watts into a 50-Ohm load. Power gain is a minimum 43 dB making the amplifier compatible with drive power levels provided by most commercially available signal generators. The construction of these is in a 51/4 or 7-inch high cabinet, 141/2 inches deep, exclusive of handles, and 111/2 inches wide. They are intended for bench-top use, but may be supplied with a rack mounting kit installed. Input and output connectors are N-type female and are located on the front. Forced-air cooling is by a highly reliable, tube-axial fan mounted at the rear. Protection against excessive heat rise of the amplifier module heatsink is by a temperature-sensing switch that interrupts the gate bias supply to the amplifier devices when activated. Operation resumes automatically when temperature has returned to normal operating temperature.