MOPA Amplifier Replica
MOPA 1930's Replica Vacuum Tube Driven Oscillator / Amplifier The M.O.P.A. Amplifier (Master Oscillator Power Amplifier) provides a variable 1.1 ...
Future Frequency Login
US Domestic Orders
The GB4000 & Amp Combo Package
Frequency Generator Combo Package with SR4 RF AmplifierGives you 5x More Power than GB4000 alone.
-Investment: $2305
(saves you $100)
Accessories not included.
The GB4000 Frequency Generator Deluxe Combo
The GB4000 Frequency Generator Deluxe ComboPackage with SR4 RF Amplifier & Protective Hard Case
Includes - GB4000 Frequency Generator & SR4 RF Amplifier
- New "Carry On Flight" Mini Vanguard Hard Case ($150 value)
- Positive DC Offset Option
(request during checkout) - Free Video Training incl. Quick Start
- Free Instructional DVD Video
- Telephone & Online Tech Support!
GB4000 Deluxe Combo
-Investment: $2445
(saves you $100+)
Accessories not included.
The GB4000 Frequency Generator Only - Investment: $1710
Accessories not included.
Accessories not included.
Looking for the Amp only?
Your Satisfaction Is Guaranteed:
You have 30 days to try out the GB4000 package that you choose. If you are not 100% Satisfied simply send it back to the return address listed on our Privacy & TOS page and we'll give you a prompt refund. There is no restocking fee - but we do deduct our shipping costs when we've paid for the shipping and the machine must be in new condition in the original box with original packing materials.
Canada, International, and Express Shipping Orders
The GB4000 & Amp Combo Package
Frequency Generator Combo Package with SR4 RF AmplifierGives you 5x More Power than GB4000 alone.
Investment: $2305 + shipping
(saves you $100)
(You can also use this option for rush shipments on US orders.)
Accessories not included.
The GB4000 Frequency Generator Deluxe Combo
The GB4000 Frequency Generator Deluxe ComboPackage with SR4 RF Amplifier & Protective Hard Case
Includes - GB4000 Frequency Generator & SR4 RF Amplifier
- New "Carry On Flight" Mini Vanguard Hard Case ($150 value)
- Positive DC Offset Option
(request during checkout) - Free Video Training incl. Quick Start
- Free Instructional DVD Video
- Telephone & Online Tech Support!
GB4000 Deluxe Combo
-Investment: $2445
(saves you $100+)
Accessories not included.
The GB4000 Frequency Generator Only
- Investment: $1710
Accessories not included.
- Investment: $1710
Accessories not included.
Looking for the Amp only?
Your Satisfaction Is Guaranteed:
You have 30 days to try out the GB4000 package that you choose. If you are not 100% Satisfied simply send it back to the return address listed on our Privacy & TOS page and we'll give you a prompt refund. There is no restocking fee - but we do deduct our shipping costs when we've paid for the shipping and the machine must be in new condition in the original box with original packing materials.
New GB4000 Training Video
Finally here's a video showing how I use the MOPA Oscillator/Amplifier along with the GB4000 Frequency Generator. Let me know if this opens up any new questions for you. (the extended "Inside" video is coming soon along with the "Register for this site" feature very shortly - give me a few days on that!)
This video shows the basic and more advanced functions of the GB4000 Frequency Generator to give you an idea of how it works. The focus gets clear after about 2 min 45 seconds (just in time ;-)
thanks for watching!
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GB-4000 Specifications
20 Megahertz Sweep/Function Generator
The only Frequency Generator capable of running 8 frequencies simultaneously.
The GB-4000 is the only FREQUENCY GENERATOR available that………
- Frequency range of 0.1 to 20 million hertz.
- Produces digitally accurate frequencies converted to analog for full analog harmonics.
- Incorporates a 2.4 MHz RF (Radio Frequency) carrier wave technology.
- Carrier wave can be turned off so user can use it as a standard low audio frequency generator.
- Produces square wave harmonics..
- Displays all frequencies on the LCD - not hidden program numbers like other frequency generators.
- Allows you to program your own frequencies and groups of frequencies (2000 custom channels available, each channels stores up to 48 frequencies).
- Computer programmable software included.
- Runs either single or multiple frequencies (up to 8 frequencies simultaneously).
- Capable of running a 90% duty cycle (almost double the power of other instruments; other frequency generators typically can only run a 50% duty cycle).
- Incorporates gating capabilities from 5 - 2500 Hz with a 10 - 90% duty cycle.
- Capable of running both sine wave and square wave waveforms.
- Channel sweep capabilities in all 2000 channels.
- Capable of running both narrow and broad range sweeps.
- Capable of running converge sweeps to 20 million hertz.
- Offers 4 outputs (other frequency generators have only 2 outputs).
- 9 times more powerful than any audio frequency generator.
Why Power 0utput Is Important In A Frequency Generator
When comparing the various instruments power output is a very important consideration. This is the reason the GB-4000 uses a carrier frequency so that more power can be output.The power output of most frequency generators on the market today that do not use an RF carrier frequency is only about 0.20 of 1 watt. The GB-4000 with the use of an RF carrier is about 2 watts and is over 9 times more powerful than these instruments. With the use of the optional SR-4 amplifier it is over 50 times more powerful.