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Rare GB4000 SR4 & MOPA Sale!

Once Every Few Years We Have A Sale On These Units! This Sale Is Over - Sorry!

In this video I show you a Refurbished MOPA which I'm helping a friend sell after it's been updated. I also share some details about why this is such a unique device and introduce the upcoming sale we have going for the machines.

If you've been on the fence about getting a machine, starting shortly as I type this you can save a nice chunk of cash by taking advantage of our sale.

And if you want to save even more, if it's not sold already you can grab this refurbished unit at a nice discount - but you'll have to contact me through the site for that since I'm helping a friend sell it.

Questions? Call Us At 541-434-0318

We are one of the original, and highly experienced distributors of the GB4000 and MOPA machines in business since 2001 (actually longer if you include our previous company). You can expect top notch service, exclusive training videos and other surprise bonuses. You'll have a full 60 day satisfaction guarantee and a 2 year parts a labor warranty.


Thank you for visiting and considering us for this important purchase. Contact us through the site if you have any questions.


And by the way, none of the other e-commerce websites are the actual manufacturer.  One of them might 'seem' like they are based on the name but we are all independent distributors so when you decide on this purchase you're deciding on who you trust for the best support.

What will my investment be?

First of all a reminder that the prices don't include the accessories or plasma tube (only needed for MOPA) as those are available from 3rd party companies. Those cost $118 and $335 respectively.


During the sale the units were discounted. Sorry it's over!


These systems are still the best bargain compared to all the other systems out there so even at the normal pricing you can't go wrong.


Contact us if you have any questions about them and you'll see why we're considered the company with the best support for these machines.


Now here are the details: GB4000/SR4 and MOPA Frequency Generators

GB4000 Frequency Generator

60 Day Satisfaction Guarantee from the most experienced distributor Future Tech Today Inc est 2001. Previous to that we were Teslatech back in the 1990's ;-)


The only Frequency Generator capable of running 8 frequencies simultaneously. The GB4000 Function Generator incorporates years of research to produce all of the audio and RF frequencies to reproduce all the effects you've read about.

With class leading power output, and the ability to create all of the high frequencies used in the original machines, you will we be able to meet all of your frequency needs.


While almost all other machines can only run 1 frequency at a time, the GB4000 gives you the ability to run from 1 to 8 frequencies simultaneously for a superior multi-frequency waveform. Since the GB4000 is up to 10 times more powerful than other machines there is plenty of power available to run 8 frequencies at the same time.

Key benefits of the GB4000

  • Simple to use, but includes advanced features.
  • Comes with both Audio and RF modes
    •
  • Uses 3.1Mhz RF Carrier technology.
    •
  • Frequency range of 0.1 to 20 million hertz
    •
  • Runs frequencies up to 400kHz without an RF Carrier at a resolution of 0.01 Hz! This means that you can run hundredths of a hertz (example: 7.83 Hz)
    •  The GB4000 and optional amplifiers come with a full 2 year parts and labor warranty and includes telephone and email support. You'll also receive a DVD training video as well as additional video training from Joshua Parker (his exclusive videos). You'll also have a full 60 days to decide if the machine is right for your. That's right you can return it for a full refund (as long as there's no scratches on the MOPA if you choose to upgrade with the MOPA) if you are not happy with your machine for any reason.
  • Comes pre-programmed with 875 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 to 3.7 watts (up to 15 watts with the SR-4 Amplifier)
    •
  • No hidden frequencies! Displays frequencies on screen and in the manual
    •
  • Voltage output in Audio Mode: 36 volts peak to peak which is .75 watts
    •
  • Voltage output in RF mode: Over 110 Volts peak to peak making it 18 times more powerful than most other frequency generators on the market. (Power output with the SR-4 Amplifier is up to 350 volts making it 75 times more powerful than our top competitors)
  • 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 and even has an advanced "converge sweep" mode (ask us for details)
    •
  • Offers 4 outputs - other frequency generators only have 2
    •
  • Runs square wave frequencies up to 100 kHz and sine wave frequencies up to 20 MHz
    •  Note: Accessories not included (please inquire for details) We've supported these machines for well over a decade and know them well so you'll be in good hands when you have questions. *Unless unused returns subject to a 10% restocking fee.

    $ 1,725.00
    GB400 FREQUENCY GENERATOR + SR4 AMPLIFIER
    GB4000 Function Generator & 15 Watt RF Amplifier Package

    The only Frequency Generator capable of running 8 frequencies simultaneously…

    The GB4000 Function Generator incorporates years of research to produce all of the audio and RF frequencies that you want.

    With class leading power output, and the ability to create all of the high frequencies used in the original machines, you will we be able to meet all of your frequency needs.

    While almost all other machines can only run 1 frequency at a time, the GB4000 gives you the ability to run from 1 to 8 frequencies simultaneously for a superior multi-frequency waveform. Since the GB4000 is up to 10 times more powerful than other machines there is plenty of power available to run 8 frequencies at the same time.

    Key benefits of the GB4000

  • Simple to use, but includes advanced features
  • Comes with both Audio and RF modes
    •
  • Uses 3.1Mhz RF Carrier technology.
    •
  • Frequency range of 0.1 to 20 million hertz
    •
  • Runs frequencies up to 400kHz without an RF Carrier at a resolution of 0.01 Hz! This means that you can run hundredths of a hertz (example: 7.83 Hz)
    •  The GB4000 and optional amplifiers come with a full 2 year parts and labor warranty and includes telephone and email support. You'll also receive a DVD training video as well as additional video training from Joshua Parker (his exclusive videos). You'll also have a full 60 days to decide if the machine is right for you. *(There's a small restocking fee on returns) if you are not happy with your machine for any reason.
  • Comes pre-programmed with 875 Channels - ready to use out of the box simply press "Auto Channel" then press a channel number, then press "Run" and you are off to the races!
    •
  • 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 to 4.7 watts (up to 15 watts with the SR-4 Amplifier)
    •
  • No hidden frequencies! Displays frequencies on screen and in the manual
    •
  • Voltage output in Audio Mode: 36 volts peak to peak which is .75 watts
    •
  • Voltage output in RF mode: Over 110 Volts peak to peak making it 18 times more powerful than most other frequency generators on the market. (Power output with the SR-4 Amplifier is up to 350 volts making it 75 times more powerful than our top competitors)
    •
  • 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 and even has an advanced "converge sweep" mode (ask us for details)
    •
  • Offers 4 outputs - other frequency generators only have 2
    •
  • Runs square wave frequencies up to 100 kHz and sine wave frequencies up to 20 MHz
    •  Note: Accessories not included (please inquire for details) We've supported these machines for well over a decade and know them well so you'll be in good hands when you have questions.

    All our GB4000’s now ship with the groundbreaking 3.1 MHz RF Carrier Frequency. This RF Carrier optimizes the delivery of historical sideband frequencies. This recent discovery has now been incorporated into the GB4000. The 3.1 MHz RF Carrier is the optimal frequency for both sweeps and frequency programs.

    The GB-4000 is capable of outputting all frequencies from .1 to 20 million hertz in .01 Hz increments! (new)

    The GB-4000 is also capable of sweeping from .1 to 20 million hertz.

    How does the GB4000 stack up to the competition?

    • More Power (see below)
    • Wider Frequency Range (.1 Hz to 20,000,000 Hz range)
    • More Versatility (can add a MOPA Amp to run a plasma tube!)
    • Voltage output in RF mode: Over 110 Volts peak to peak making it 18 times more powerful than most other frequency generators on the market. (Power output with the SR-4 Amplifier is up to 350 volts making it 75 times more powerful than our top competitors)
    • Ask us for more details and a knowledgeable comparison

    I Understand That I My Purchase For The GB4000 Is Free of All Risk Since
    I’m Covered By Your 60 Day Satisfaction Guarantee.*I’ll get easy access to support for my instrument by calling to speak with
    your knowledgeable staff in Oregon at 1-541-434-0318.

    All GB4000 Orders include:

    • Top Notch Technical Support From Joshua
    • Joshua Parker’s exclusive training videos
    • Quick Start DVD Video Training
    • Detailed Operating Instructions Manual
    • Computer Software & Computer Cable
    • Multi-Voltage Power Adapters For International Usage
    • One Year Parts & Labor Warranty Extendable To Five Years

    Note: Accessories not included *Unless unused returns subject to a 10% restocking fee

    $ 2,320.00
    GB4000 MOPA Amplifier
    MOPA Amplifier

    The Revolutionary MOPA RF Amplifier – The Only True Vacuum Tube Driven Frequency Machine Available. Designed exclusively for the GB4000. This is essentially an upgrade for you if you already own a GB4000 frequency generator and want to run it with a plasma tube.

    • Optimum Performance For Driving Any Plasma Tube
    • Variable RF Carrier from 2.1 to 3.6 MHz
    • Driven by an Authentic 1930’s Style Vacuum Tube
    • Output is a strong 195 Watts 
    • Professional Hand Built Construction w/ 2 Years Parts & Labor Warranty and 60 Days Satisfaction guarantee*

    Now includes the optimum 3.1-3.3 MHz RF Carrier Frequency Range
    100% Money Back Guarantee

    • High Voltage / Low Current super efficient design
    • Vacuum Tube driven 1930's tank circuit with 1350 volts
    • True Analog harmonic sine wave output producing harmonic sidebands in the same manner as the original equipment
    • Size: Compact design - 10.5" Wide X 17" Long X 10" High
    • Power: Can be built for use with 110/120 volts or 220/240 volts AC
    • Power usage: 350 watts. When connected to the GB-4000 375 watts
    • Weight: 19 pounds

    MOPA Amplifier Historical Tube Powered 1930’s Style Plasma Tube Power Amplifier Now Boosted to 195 Watts

     of RF Output to the plasma tube! The MOPA Oscillator/Amplifier along with the GB4000 Frequency Generator is the perfect combination. This is the only machine designed with the 1930's style electronics including a vacuum tube inside. 

    You'll love this addition to your GB4000!

    • The M.O.P.A. or Master Oscillator Power Amplifier uses the gas filled tube radiant method of outputting frequencies from 1 to 20 million Hertz.

    • Improvement over modern solid state equipment which uses low voltage and high current output - the M.O.P.A. uses a high voltage and low current design for much better efficiency (runs cooler so you can use it for extended time without overheating. This is the same method used in the 1930-1950 equipment.

    • Allows input of the full range of GB4000 frequencies

    • Now comes with a built-in frequency counter so you can accurately set your desired carrier frequency.

    • New maximum frequency range: When using the "RF Mode" 1 Hertz to 20,000,000 Hertz.


    Note: Accessories & Plasma Tube not included. *Unless unused returns subject to a 10% restocking fee.

    $ 2,495.00
    MOPA VACUUM TUBE AMPLFIER & GB4000 COMBO
    MOPA Vacuum Tube Amplfier & GB4000 Combo

    Our Ultimate GB4000 Package includes the Revolutionary MOPA RF Amplifier – The Only True Vacuum Tube Driven Frequency Machine Available

    • Optimum Performance For Driving Any Plasma Tube
    • Variable RF Carrier from 2.1 to 3.6 MHz
    • Driven by an Authentic 1930’s Style Vacuum Tube
    • Output is a strong 195 Watts 
    • Professional Hand Built Construction w/ 2 Years Parts & Labor Warranty and 60 Days Satisfaction guarantee*

    Now includes the optimum 3.1-3.3 MHz RF Carrier Frequency Range

    • High Voltage / Low Current super efficient design
    • Vacuum Tube driven 1930's tank circuit with 1350 volts
    • True Analog harmonic sine wave output producing harmonic sidebands in the same manner as the original equipment
    • Size: Compact design - 10.5" Wide X 17" Long X 10" High
    • Power: Can be built for use with 110/120 volts or 220/240 volts AC
    • Power usage: 350 watts. When connected to the GB-4000 375 watts
    • Weight: 19 pounds

    MOPA Amplifier Historical Tube Powered 1930’s Style Plasma Tube Power Amplifier Now Boosted to 195 Watts RF output to the plasma tube!

    The MOPA Oscillator/Amplifier along with the GB4000 Frequency Generator is the perfect combination. This is the only machine designed with the 1930's style electronics including a vacuum tube inside. 

    Note: Accessories & Plasma Tube not included. *Unless unused returns subject to a 10% restocking fee.

    $ 4,220.00