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1240L Power Amplifier (1240L)

20KHz - 1MHz, power measurement (forward & reflected), solid state reliability, forced air-cooling.

The 1240L Amplifier is a rugged source of RF power for ultrasonics, induction heating and laser modulation as well as plasma applications. It is a totally solid state solution employing RF DMoS FETs in the power amplification stages, offering simultaneous forward and reverse power readouts, and an RS232 port for data collection. The 1240L reflects E&I’s commitment to reliable and robust RF power.


The 1240L produces 2000 Watts of quasi linear class AB power over a frequency range of 20 KHz to 1 MHz, with a nominal power gain of 58 dB (+/-2dB). Operation over the entire frequency range is possible without the need for any switching.

The front panel display provides simultaneous measurements of forward and reflected power as well as the unit’s status. The RS232 connector at the rear of the unit can also be used to capture this data and reset the unit should a fault occur.

The E&I 1240L is a 19” rack mount unit 24.5” high. It employs an integral power supply capable of operation from 200-240 VAC 50–60 Hz. The unit weighs approximately 190 lbs or 90 Kg.

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1240L Power Amplifier

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