Additional Information

Site Menu Call Now: 208-703-1604 Toll Free: 877-743-3757
  Closed Sundays

M.O.P.A Amplifier

M.O.P.A. Radiant Frequency Generator

The M.O.P.A. (Master Oscillator Power Amplifier) is a 2.2 MHz to 3.8 MHz 1930s/1950s M.O.P.A. Oscillator Replica Now with a Built-in frequency counter for faster, easier configuration.
Plasma Tube Frequency Generator
We are now offering a 2.1 MHz to 3.8 MHz M.O.P.A. (Master Oscillator Power Amplifier) 1930s/1950s M.O.P.A. Oscillator Replica. This Radiant Frequency unit is capable of driving a plasma tube with up to 118 Watts of power. When connected to the GB-4000 Frequency Machine it is capable of outputting up to 8 Frequencies Simultaneously. Many people call this type of machine a Beam Ray replica or a Resonant Light machine. It is designed to be able to produce the same types of outputs and frequencies that the original 1930s equipment did. New maximum frequency range: When using the "RF Mode" 1 Hertz to 20,000,000 Hertz.

International call:
(00+1) 208-703-1604

GB4000 Learn More

(*Free Shipping within the Continental United States.)

Key benefits of the GB4000 & MOPA Combo

  • Simple to use, but includes advanced features.
  • Built in frequency counter for easy set up and configuration
  • NEW - Mopa can now operate in both Audio and RF modes.
  • Uses variable 2.2Mhz to 3.8Mhz RF Carrier .
  • Frequency range of 0.1 to 20 million hertz
  • Comes pre-programmed with 873 Channels - ready to use out of the box
  • Can store up to a total of 2000 channels - so you have all the room you need for custom channels
  • Has advanced sweep and gating functions
  • Variable power output up more than 120 watts with peak power up to 207 watts
  • Displays frequencies on screen and in the manual
  • Completely hands free operation when using the MOPA with the plasma tube
  • Full LCD Display - no hidden programs like with other frequency machines
  • Channel sweep capabilities in all 2000 channels. Channel sweep from 1 to 20,000 Hz
  • Capable of both narrow and broad range sweeps
  • Ability to run from one to eight frequencies through the plasma tube - no other instrument has this capability
  • Free phone technical support for as long as you own your machine
  • Proven design: solid state components coupled with vacuum tube technology for the most accurate, most powerful output

Radiant Frequency Machine Technology

Modern solid state circuitry uses low voltage, high current designs, to avoid the additional engineering and component costs involved in building the types of machines used in the 1930's and 1940's. The M.O.P.A amplifier/oscillator combines solid state design with analog vacuum tube technology to generate a high voltage, low current output to light the plasma tube. The ability to produce a high voltage, low current output to drive the plasma tube makes the MOPA, coupled with the GB4000 frequency generator unique in the market. And even with the advantages of vacuume tube design, it is still almost $1500.00 less than other comparable plasma tube machines.
The M.O.P.A. radiant frequency amplifier uses a plasma tube to broadcast the frequency, which is a non-contact method. Using a gas filled plasma tube allows for a maximum output power of approximately 118 watts. For the first time since the Ray Tube devices of the 1930s, the M.O.P.A. uses high grequencies directly output through the gas filled tube method. If you want to use the more powerful, versatile 1930s/1950s radiant method, then the M.O.P.A. amplifier with the GB4000 frequency generator is the instrument you will want to own.

MOPA Resonant Frequency Generator Specifications

  • Amplification Voltage: High Voltage (1128 volts)
  • Amplification Current: Low Current (30 to 250 milliamps)
  • Built in milliamp meter
  • Built in Frequency Counter
  • Output waveform: Sine Wave
  • Carrier Frequency: Variable.
  • Peak Power: When gated or modulated, approximately 207 watts using the square wave waveform.
  • Suggested range: 1 inch to 6 feet when using a gas tube. The M.O.P.A. has the same output as the 1930s/1950s equipment that was used within 6 inches of the target area.
  • Approximately 2.1 Mhz to 3.8 Mhz adjustable carrier frequency range
  • Carrier Frequency tuning: Variable Tuning Capacitor.
  • Designed to work with the GB4000 frequency generator through a BNC connection
  • Uses input from the GB4000 to generate frequency modulation up to 40,000 hertz square wave @ 100% AM modulation
  • New maximum frequency range: When using the "RF Mode" 1 Hertz to 20,000,000 Hertz.
  • Gating or pulsing: 1 to 40,000 hertz, variable using the G4000.
  • Frequency Delivery: Gas filled tube (*Sold by another company. Limited warranty applies only if the recommended plasma tube is used.)
  • Instantaneous tube ignition with no SWR meter needed.
  • Compact Size - 10.5" Wide X 17" Long X 10" High.
  • Input power: Factory setting for 110/120 Volts AC or 220/240 volts AC.
  • Power usage: 240 watts. When connected to the GB4000, 265watts.
  • Weight: about 19 pounds.

RF vs 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.
Plasma Tube for Frequency MachinePLEASE NOTE: the gas filled tube including copper collars with wires, gas tube holder and new reflector are sold separately from another company for $335.00 plus shipping. Your distributor can give you the phone number for that company so you can order it when you order your M.O.P.A. This gas tube is
made of Pyrex and is a 2" inch round by 14" inch long Helium, Argon or Helium/Argon filled tube. It is guaranteed to handle the power output of the M.O.P.A. (*The M.O.P.A. comes with a warranty but if any other plasma tube is used there is no warranty)

GB4000 Learn More

Please read the Return Policy and Warranty Information