BT-9 The Bio-Tuner

Complete Site Index
Sota Basic Wellness Kit
Magnetic Pulser
Silver Pulser




Please Review our two Ordering Options Below

Option 1 - click on the Sota ordering link below and receive a 5% referral discount on your first purchase.You must click this link to enter the Sota ordering system:

In the event the link is not active, call Sota at 800-224-0242 and give the operator your Referral code number CA50025. Pass this referral code along to your family and friends and they will also receive the 5% discount on their first purchase. Sota will process your credit card and ship the items directly to you from Canada. Charges will include item amount & shipping. Shipping will be added at time of purchase. Overseas customers may be required to pay additional import taxes. This varies according to each country or trade zone

Option 2
rder directly from Transformation Technologies. We have been working with these products since 1985 and know them well!

Transformation Technologies

U.S. Toll free number - 877-287-0912.
Overseas customers or local call - (760) 363-5496

Email us at -

The BT-9  Bio-Tuner is a time tested technology that has proven itself with thousands of satisfied customers since 1983.  BT-9 is an electronic instrument that produces hundreds of harmonic frequencies to relieve stress and promote relaxation.  See an actual spectrum analysis of the BT- frequenciesRelaxation and well-being can truly be yours with the BT-9 and it requires no special effort, training or discipline.  The BT-9 is preset to run for a 20 minute session. It is applied by means of earclip electrodes. Just like working out and exercising your body, using the Biotuner can be part of a mental fitness program to optimize your performance!

Most individuals describe the experience as being one of focused relaxation, even when emotional tensions have been present.  Following the normal 2 to 4 week application routine, many BT-9 users experience significant positive changes in their lives and in their relationships with others. 

What Should I Expect

Most users experience a more positive, confident outlook on life with a renewed sense of enthusiasm.   The many daily challenges of life seem easier to handle with a newly found feeling of energy!

The numerous benefits of BT-9 tend to be cumulative in nature and  gradually reveal themselves over a period of 1 to 4 weeks.  Change is spontaneous and effortless.

Transformation Technologies has been offering the Bio-Tuner since 1985. Thousands of individuals have discovered the Bio-Tuner relaxation system.  Join them now and discover a genuine technology for positive change and well-being.  You'll be glad you did! The BT- 9 Bio-Tuner is the most up to date version. Previous versions were the BT-5, BT-6 and BT-7 and BT-8

BT-9 - $275.00

Watch a Youtube Demonstration
of the Bio-Tuner

Please call Volker Risto, owner of this website, if you have questions about using the Biotuner. I have personally used this product since 1985 and worked with the inventor for seventeen years. The BT-9 really works!


BT-9 Benefits BT-9 Features BT-9 kit and accessories BT-9 Specifications Health Resources

  • Ability to focus with greater attention span
  • Relaxation of body and mind
  • Part of an overall program for optimum health
  • Centering and feeling of calmness
  • Increased sense of energy to accomplish more in your life
  • Users report many generalized benefits in their lives with the addition of the BT-9

Note:  the possible range of benefits listed above are based upon over 30 years of observations working with the original BT-5, BT-6, BT-7 and now, the Sota BT-9 Bio-Tuner. Because there are currently no published research studies involving the BT-9, we advise that individual results will

Note: the opinions stated are the views of Transformation Technologies and do not represent the opinion of SOTA Instruments. The SOTA units are classified as Consumer Products designed to be used as part of a Wellness Lifestyle. The SOTA units are not medical devices nor are they intended to diagnose, treat or cure any medical or health condition. The use, safety or effectiveness of the SOTA units, has not been approved by any government agency. Please consult a health practitioner for any medical or health condition. Results are not typical.

BT-9  Features - 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
  • 20% greater battery life than the previous model BT-8
  • Constant Voltage output to useful battery end life
  • 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
  • Kit includes a nine-volt alkaline battery
  • Includes one adjustable armband instrument holder
  • Easy to connect USB connection for earclip leadwire to instrument
  • Convenient Earclip Electrodes.  One size fits all.  No gels or pads required

BT-9 Specifications

The Biotuner operates from a regular 9-volt alkaline battery. One may also use a rechargeable NiMH battery. The underlying frequency for all six operating modes is 1,000 Hz. (+/- 1 Hz.) pulse-modulated by 111.11 Hz. (+/- 1 Hz.). Waveforms are Quartz Crystal-Controlled for precise frequency output. There are also a broad range of frequency harmonics delivered in each pulse. Pulses are Bi-Phasic (AC) with no direct current (DC) or offset bias. Output is transformer coupled so that no DC can appear at electrodes. The algebraic sum of positive and negative-going pulses is zero. The BT-9 feature a constant voltage ouput so you don't need to keep turning up the voltage dial as the battery drains.

BT-9 Usage Tips

A renowned Los Angeles physicist developed the original BT-5 model in 1983. This unit had a fixed output setting of 1,000 Hz., modulated (pulsed) at 111Hz. (plus hundreds of frequency harmonics). In 1989, we introduced the BT-6 model with the additional 7.83Hz. Schumann Resonance (Earth Resonance Frequency) and a 0.5 Hz., ON/OFF cycle. This is included in our current model BT-9 as well. Many customers familar with the concept of Schumann Resonance, have asked if the 7.83 Hz. setting will stimulate psychic or spiritual states of consciousness. To our knowledge, based upon 30 years of marketing the orignal model BT-5 through the current BT-9 Bio-Tuner, there is no psychic or paranormal effect from using this particular setting.

Nutritional Support

Proper nutrition is important when using the BT-9. Individuals who have been stressed out for years (depression, post-traumatic stress syndrome, etc.) will see a much better result from using the Bio-Tuner if they take some steps to improve their over-all health and support the brain with proper nutrients to support the production of neurotransmitters. There are many good nutritional support formulas available from your health food store or on the internet. Likewise, good quality amino acid formulas are readily available. For more information, see our Health Resources page

What Setting Should I Use

The Biotuner uses a specially designed electronic waveform that contains hundreds of frequency points or harmonics. This eliminates the need for individual frequency adjustments as a complete balancing effect is given without the need for constant manual adjustment. When choosing a setting, it is important to note that due to the internal programming of the BT-9 ALL of the settings share an underlying frequency of 1,000.00 Hz., which is then pulsed out or interrupted by the 111Hz. pulse repetition rate, (along with the hundreds of frequency harmonics). So, all six settings share this feature in common. So, you should expect very positive results regardless of the setting that is selected. Having said that, feel free to test out all six of the Biotuner settings to see which one feels best for you.

Setting number 1 is the original setting of the first BT-5 unit from the early 1980's. At that time, the unit only had the ON and OFF switch and customers were reporting great benefits from this. Settings 2 and 3 were added to the BT-6 model and gave an extra element of voltage modulation to the basic output. In other words, the voltage is "Pumped Up and Down" at the 0.5 rate (setting 2) or the 7.83 rate (setting 3). 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. A frequency of 0.5 is related to the human Delta brainwave range and the 7.83 is related to the Alpha brainwave range.

BT-9 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. The underlying waveform of the BT-9 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 model from 1983. It includes hundreds of harmonics. Many users find this setting to be more energizing. This pulsation frequency is actually present in all six of the BT-9 settings.

(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 the favorite setting of the inventor. This is also known as the Schumann Resonance frequency ( 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, the inventor 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 actual healing activity.

The 7.83 Alpha frequency is also associated with increased creativity, superlearning, memory improvement, intuitive insights and more. We have not found this to produce paranormal or psychic abilities. This type of entrainment of the brain would be more likely with a magnetic pulse device that operates within the human brainwave frequency range. 

What is the Best Time of Day to Use BT-9

It is alright to use the brain tuner any time of day. However, due to the body's daily variations in Bio-rhythms, blood sugar levels, etc. your responses to the brain tuner may vary according to the time of day it is used. For example, some individuals using BT-9 near their normal bed time, may find that it gives them a lot of extra energy and they do not feel tired. In this case, try using the unit earlier in the day, or try using the 0.5 Hz. setting. It is important to use the BT-9 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-9 may be used on occasion as desired to maintain the initial improvements.  For example, memory improvements may maintain up to 1 year before additional sessions are necessary.  Other gains may be more temporary and require more frequent reinforcement.  Individual results will vary.

How Fast Will I Notice Results

Typically, one should use the BT-9 once a day for 30 to 60 minutes per day. This should be kept up for two to three weeks. Most people will begin to notice a greater level of relaxation and stress release by the second or third session. Sometimes people are a little bit out of touch with their own internal process and others around them actually become aware of the changes before the user is aware of them. As an example, we had a customer years ago who said he was looking for an alternative to alcohol in order to help him relax after a stressful day at work. He purchased a Biotuner and after a month, he called asking to return the unit for a refund, as it was not doing anything for him. Upon questioning how he was dealing with his drinking problem, he stated that he hadn't had a drink in several weeks. When asked if he related this to using the Biotuner, he answered that he simply lost the desire to drink any more, so he didn't. Needless to say, he ended up keeping the Biotuner as a valued relaxation tool. Now, this is not to say that using a Biotuner has anything to do with drinking alcohol. The point is rather, that when our body energies are more in balance, many beneficial changes happen in the most natural way.

Possible Side Effects

Vivid or Lucid Dreaming - over the years, we have observed that some individuals experience very enhanced dreams during the first week or two of using the BT-9. This is not permanent and usually does not last more than a few weeks. A very small number of individuals may experience a mild headache the first few times of use. This has been noted in the historical literature for this type of electronic instrument. If you wish to discuss any possible side-effects, we will be happy to address your concerns.

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. In some very sensitive individuals, turning the power level all the way to maximum could irritate the skin. Remember, when it comes to the intensity setting, more is not necessarily better. Before using the Biotuner, remove any earrings and remove any body oils, makeup, etc. from the area. This will produce a better electrode contact with the skin.

Warranty and Refund Information

BT-9 has a three year warranty and a limited 30 day money back guarantee. If the unit is returned unused within the first 30 days, there is a full refund (not including shipping charges). If the unit has been used, the 30 day refund is subject to a 20% restocking charge to cover replacement of accessory parts.

Personal note from Volker Risto - owner of this website: my introduction to the original inventor goes back to 1985, when I first attended one of his lectures in Santa Monica, California. Like everyone in the room, I was captivated the fascinating information he had to share. He was highly intelligent, articulate and engaging while still making room for humor and personal stories. It was soon after that when I had an opportunity to help him market his products. This developed into a memorable and close relationship that endured until his passing on June 23, 2002. Among my fondest memories were the years of travelling around the country with this inventive physicist and the owners of Sota Instruments to numerous Health Expos and Science Conventions. The inventor of the original BT-5 was a unique personality and a great friend; an unforgettable genius who left behind him a legacy of hope and healing for millions through his great compassion and creativity. Note that the omission of naming the inventor of this line of instruments is required in order to maintain our ability to provide you this wonderful line of products today, and into the future.

BT-9 Complete Kit
  • BT-9 Unit 
  • One set earclip electrodes
  • Arm band & clip holder
  • High-quality carrying pouch
  • Nine-volt battery
  • Instruction sheet
  • 30 day money back guarantee
  • Full three year warranty




Biotuner Kit

Home Page
Complete Products Listing Page with Links to All Product Pages

Sota Complete Kit - Silver Pulser SP7- Magnetic Pulser - Colloidal Silver Generator - Bio-Tuner - Lightworks - Ozone Generators - Rife Generators - BCX Ultra Rife - Gary Wade Ultra 10-A - Fscan - Life Force 2000 - Magnetic Therapy - QRS - Curatron - Infrared Therapy - Infrared Vita-Mat - Infrared Saunas - Subtle Energy

Ordering BT-9 from Transformation Tech.

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

Transformation Technologies
PO Box 4
Nobleton, FL. 34661-0004
Toll Free 1-877-287-0912 or (760) 363-5496