New and Improved 2019 190 Watt M.O.P.A.
Master Oscillator Power Amplifier
1930's to 1950's Equipment Replica
with Updated Advanced Technology that
Exceeds All Other Gas Tube Instruments.

The New and Improved 2019 M.O.P.A. Amplifier (Master Oscillator Power Amplifier) provides a variable 2.2 MHz to 3.8 MHz frequency oscillation with low frequency pulsation from the GB-4000 function generator. This is a new and updated version of the 1930-1950 MOPA original. When connected to the GB-4000, the MOPA is capable of outputting 8 frequencies simultaneously.

RF versus EM Systems

All gas tube instruments that are EM (electro-magnetic) do not use RF (radio frequency)
frequencies or an RF carrier frequency. They use coils to produce a high electromagnetic field to carry
the frequencies to the target. Due to the fact that they use EM to deliver the frequencies they are limited
to about 10,000 Hertz but a few go to 30,000 Hertz. Since they do not use an RF carrier frequency it is almost impossible to determine their power output.

For this reason almost none of these manufacturers list the power output of their equipment. They generally are very good instruments except for their limited frequency range. Anyone who purchases the EM type of equipment should understand that they only output low audio frequencies and have no RF carrier frequency. All the original 1920s through the 1950s instruments used RF and had an average power output from about 40 to about 200 watts.

Your M.O.P.A. purchase includes the latest NEW BUILT-IN FREQUENCY COUNTER! This Frequency Counter will let you set your frequency of choice between 1.1 MHz and 1.9 MHz.