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Armstrong's "LCD Series" and "Series B" Solid State FM Transmitters offer you the maximum redundancy available in solid-state transmitters today.

These amplifiers both use 300-watt RF modules that contain the Philips BLF 278 MOSFET. This commonly available FET has been proven in thousands of solid state transmitters in use worldwide.

Armstrong ensures that each output device is thermostatically protected and protected against excessive VSWR by a fold back circuit, which proportionally reduces power when VSWR is present. In addition the transmitter combiner also triggers fold back when external VSWR is detected.

Metering and Alarm indications are available for each amplifier, the exciter and the driver. Plus, overall transmitter metering and alarms are available both on the transmitter and for remote monitoring via DB25 connector located on the rear panel of their chassis.
FM2500B 2.5KW FM Solid State Amplifier
FM Series B Medium Power Solid StateTransmitters
FM Series C Medium Power Solid State Transmitters
TRANSMITTER BROCHURES:
Armstrong's Single Tube Transmitters have become affectionately known as "Work Horses". The grounded grid, broadband PA design, offers several benefits not found in other transmitter designs. NO Neutralization: A single tube in this configuration never oscillates and does not need to be neutralized. This design is also the most stable transmitter design available.

Exceptional Tube Life: Depending on the power level of your transmitter you may experience tube life up to 5 years or more.

Low AM Noise: The broadband design of the PA offers the lowest AM noise levels to be found in a tube transmitter.

Each of Armstrong's single tube transmitters offer our unique PA thermostatic protection. If there is an occurrence which causes the PA temperature to rise above the factory preset the Transmitter control circuitry will shut the transmitter down and alarm of the condition before damage can occur to the PA. VSWR protection and easy remote control hook up are all standard feature regardless of transmitter power level.
TRANSMITTER BROCHURES:
T2 Tube Type Medium Power FM
T2 Tube Type High Power FM
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