K2D130W
K2 Series
Digital IOT
• Designed for 8VSB operation
• Peak power capabilities of 130 kW with average
power of 31 kW
• High gain amplifier: 22 dB minimum
• Long life, high reliability with dispenser type
cathode and pyrolytic graphite grid
• Single tube and circuit: 470 to 815 MHz
• User-friendly tuning
• Tube replacement does not require disconnection
of power supply or cooling water
• Compact size with “collector (water) down”
• Water-cooled collector and output cavity.
Air-cooled electron gun and anode.
• Made in the USA - ISO 9001 facility
K2
UHF-TV Cavity Amplifier
Made in USA
The input cavity, the output cavity, focus magnet assembly,
arc detector, water-jacket and load coupler are mounted on
a rugged wheeled support stand which is compatible with
transmitters from all manufacturers.
Electron gun and cavity air-cooling is improved with the new
K2 air plenum design. Tube replacement and maintenance
is a simple matter for one person without requiring hoists
or removing the cavity assembly from the transmitter
cabinet. Coolant lines or power supplies do not have to be
disconnected.
In DTV digital transmission, the K2D130W Klystrode
®
IOT
can be used at up to 130 kW peak power with average power
levels of 30 kW for 8 VSB operation (for details please contact
Eimac Division, CPI Inc., Klystrode
®
IOT Applications
Engineering).
The EIMAC K2D130W Klystrode
®
Inductive Output
Tube (IOT) is a high efficiency amplifier tube for use in
digital UHF television service as the output stage of DTV
transmitters. The K2 series is suitable for use with 8VSB,
COFDM and similar modulation schemes.
The K2 cavity amplifier, is comprised of a single tube,
K2D130W, and associated hardware assembly, HA2000.
The cavity amplifier covers the entire UHF TV band from
470—815 MHz (bands IV and V).
The K2 amplifier series has an advanced Electro-Magnetic-
Compatibility (EMC) designed input circuit, which isolates
the RF input from the transmitter DC high voltage. The
input filter circuit is optimized for the sharp rise-time,
short duration pulses of DTV, simplifying transmitter
pre-correction. The input circuit has a stable, out-of-the-
way storage position and utilizes a cam-guided insertion
mechanism to ensure positive connection to the IOT.
April 2007
CPI [ COMMUNICATIONS & POWER INDUSTRIES, INC. ]
