• Ability to Focus
• Deep Relaxation
• Enhanced Creativity
• Centering and Calmness
• Reduced Nervous Energy
• Deeper, more Restful Sleep
• Better Sexual Performance
• Improved Mental Abilities
• Short Term Memory Improvement
• Increased Mental and Physical Energy
• Reduced Negative Behavior Patterns
• Heightened Alpha Brainwave Patterns
• Improved Attention Span and Concentration

Disclaimer: the BT-7 (Brain Tuner, Bio-Tuner) is not a medical device.  These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, prevent, mitigate or cure any disease.  If you have a health-related condition that requires medical attention, always consult with a licensed health care professional.  Individual results will vary.

A push-button switch easily changes the output through each of six different pulse modes.  Two of the modes contain the 7.83 Hz Schumann (Earth resonance) frequency.  Colored led lights indicate the different modes.

• Over 500 frequency harmonics in each pulse Advanced microcomputer operation
• Six selectable pulse output modes 
• Featuring the 7.83 Hz. Schumann (Earth Resonance) frequency
• Two selectable pulse width adjustments - 550 or 220 microseconds
• Green Led power on indicator Red Led low battery indicator
• 20 minute auto shutoff timer
• Surface mount components
• Quartz crystal frequency controller
• New for 2007!  Convenient Earclip Electrodes.  One size fits all.  No gels or pads required.

BT-7 Usage Tips

Dr. Bob Beck developed the original BT-5 Brain Tuner in 1983. This unit had one pulse output setting of 1,000 Hz., modulated at 111Hz. (plus hundreds of frequency harmonics). In 1989, Dr. Beck introduced the BT-6 model with the additional 7.83Hz. Schumann Resonance (Earth Resonance Frequency) and a 0.5 Hz., ON/OFF cycle. This represents our current model BT-7 as well.

When choosing a setting, it is important to note that due to the internal programming of the BT-7 ALL of the settings start with the 1,000.00 Hz. frequency which is modulated or interrupted by the 111Hz. Pulse repetition rate, (along with the hundreds of frequency harmonics). So, all six settings share this feature in common. Settings number 2 and 3 as well as number 5 and 6 add an extra element of Voltage Modulation over the basic output. In other words, the voltage is "pumped Up and Down" at the 0.5 rate or the 7.83 rate. The body is very sensitive to many types of rhythms and pulsations, so the voltage modulations of 0.5 and 7.83 add an extra dimension of relaxation signals to the body.

Feel free to experiment with the various settings and note which one feels the most relaxing or energizing (depending upon your personal goals). You are always receiving the basic frequency harmonics, regardless of the setting.

What Time of Day to Use BT-7 - it may be used any time of day. However, some individuals using BT-7 near their normal bed time, may find that it gives them too much extra energy and they are not tired. In this case, try using the unit earlier in the day. It is important to use the BT-7 each day for 2 to 3 weeks in order to achieve the maximum benefits.  There is no need to repeat the entire 2 to 3 weeks if you happen to skip a day or two.  Following the initial series of sessions, BT-7 may be used on occasion as desired to maintain the initial improvements.  For example, memory improvements may last up to 1 year before additional sessions are necessary.  Other gains may be more temporary and require more frequent reinforcement.  Individual results will vary.

Possible Side Effects

Vivid Dreaming - over the years, we have observed that some individuals experience very vivid dreams during the first week or two of using the BT-7. This is not permanent and normally does not last more than a few weeks.

Headache - a very small number of individuals may experience a mild, temporary headache the first few sessions. Note: It is not at all clear if the BT-7 actually causes headaches. In one double-blind placebo test, approx. 2 percent of patients receiving a sham therapy with NO battery in the instrument, reported headache, which was the same percentage as the the live battery group. Our actual experience since 1983 indicates that individuals may report headache relief co-incident with using the BT-7. That is not to say the BT-7 resolves headache, only that there seems to be a correlation.

Earclip Sensitivity - some individuals may be very sensitive to the electrical stimulus of the earclips on the earlobes. Start out with the intensity dial at a low level the first few days. There is no need to "crank up" the intensity levels in order to achieve beneficial results. It is very normal for the body to adapt or accommodate to the stimulation. After a few minutes, you may not feel the electrical stimulation on the skin. If the intensity dial is turned up, then you will feel the stimulation once again. It is not necessary to continually increase the stimulation levels throughout the session.

BT-7 Six selectable output settings: 

Note that settings 1, 2, 3, have a pulse duration of 550 microseconds and settings 4, 5, and 6 have a pulse duration of 220 microseconds. This represents the active ON time of the pulse. We do not have any published research that would support the use of one pulse width setting over the other. Note that the underlying waveform of the BT-7 is the same, regardless of the setting you select. This means that any of the six settings will provide a broad spectrum of frequency harmonics, and all of them will work! Just find the setting that feels best to you.

(1) 111.11 Hz - this was the setting for the original BT-5 Brain Tuner from 1983. It includes hundreds of harmonics. Many users find this setting to be more energizing.

(2) 1 sec. ON / 1 sec. OFF - this 0.5Hz. voltage modulation corresponds to the low Delta brainwave frequency. This frequency, in terms of EEG brainwave, is associated with deep REM sleep.

(3) 7.83 Hz - this was Dr. Beck's favorite - Schumann Resonance frequency (also known as the Earth Resonance Frequency or Earth's Brainwave, due to the resemblance to the human Alpha brainwave pattern. This setting may help to synchronize the energy levels of the left and right brain EEG patterns. As a pioneer of EEG bio-feedback instrumentation, Dr. Beck tested numerous healers, shamans, Hawaiian Kahunas, dowsers, etc. and found that all of them exhibited high levels of brainwave activity in the 7.83Hz. frequency when they were engaged in healing activity.

The 7.83 Alpha frequency is also associated with increased creativity, superlearning, memory improvement, intuitive insights and more. 

Listen to the Original
Bob Beck Brain Tuner
Lecture Tape from 1983!


* Brain Tuner - Part - 1
* Brain Tuner - Part - 2
* Brain Tuner - Part - 3
* Brain Tuner - Part - 4

Flash Player 7 or higher is required

There are two ways to listen to Dr. Beck's lecture on the Brain Tuner. You can click on the links to the left - Part 1 through 4. A new window will open and the audio stream will begin but with no player controls. You can also use the Audio Player below. To the Left of the Player Window are a number of small icons. There is a rounded button with UP and DOWN arrows. Above that is a small link for the PLAYLIST. Click on the Playlist link to activate the files and then begin the first track with the usual Play Arrow. Each track is approx. 22 min. in length and they will automatically load.

Flash Audio Player powered by

We do not offer on-line ordering. Please phone, or email your order.  Shipping time is normally within 5 to 7 days.  Add $6.00 shipping for U.S. and Canada. Payment by Visa, M.C., Am. Ex. Discover, PayPal, check & money orders

Toll Free 1-877-287-0912

(310) 823-7016
Fax (310)823-5028

E-Mail vristo@earthlink.net