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

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.