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Terms and Conditions of Sale



We do not provide any information to anyone for any reason.

Processing and Shipping Times

All of our kits are custom built per order. Please allow 5-10 business days for us to process and ship your order. In most cases, we will generally attempt to ship items within 3-5 business days. If there is an additional lead time, as is the case for custom kits and component packages, we will let you know when you place your order. This excludes weekends and holidays. Regular ground service is handled via USPS or UPS. Backorders - all partial shipment backorders will be shipped via regular ground service at our expense. Eastern Voltage Research does not guarantee shipping or processing times. All leads times are estimates only.

Individual components are generally shipped in 1-2 business days.

Shipping / Handling Charges

Domestic shipping will be shipped via USPS Priority, USPS First Class, FEDEX ground, or UPS ground shipping. Eastern Voltage Research reserves the right to choose the appropriate shipping service for the product and destination. If a customer requires a specific shipping service, they must contact Eastern Voltage Research at the time of order. Depending on shipping service selected, additional shipping charges may be required. Shipping / Handling charges reflect both actual shipping charges as well as handling and packaging fees.

International Orders

All foreign orders are shipped via USPS International Priority service unless otherwise noted. You are wholly responsible for any custom duties, brokerage fees, import restrictions, etc... that are imposed after the sale. Also, note that the prices reflected in the shopping cart check-out are for domestic US shipping only. If you place an international order, we will email you an additional PAYPAL invoice for the additional shipping costs for international shipping. Eastern Voltage Research does not guarantee shipping or processing times. All leads times are estimates only.

Order Cancellations

Before you submit your order, please make sure you really want it. Once we have begun processing an order, a 25% restocking fee will be applied, prior to any refund. If you do not agree with this policy, please do not order.

Legal Status of Products

It is the responsibility of the Buyer (not Eastern Voltage Research, LLC) to ascertain and obey all applicable local, state, and federal laws in regard to the possession and the use of any item or kit that is offered for sale. Consult your attorney regarding local, state, and federal laws prior to ordering. By placing an order, the buyer represents that he / she is of legal age and that the products will be used only in a lawful manner.

Electronics Kit Limit of Liability

Our range of electronics kits are intended for educational and amateur / hobbyist use only. They are not intended for use in commercial or public display applications (i.e. museums). If they are used in such applications, the purchaser assumes all responsibility for ensuring compliance with local laws. When a product is supplied in kit form and assembly or construction has commenced or the inner component packages have been opened, we are unable to offer any form of refund, replacement, exchange, or free repair. This is because we cannot guarantee the labor you provide and components can be damaged during assembly. Component packages should be checked against the components list supplied and any shortages or damaged components must be advised to us within 7 days of delivery date to ensure free component replacement.

It is recommended that if a kit builder does not have enough knowledge to diagnose faults, that the project should not be started unless assistance can be obtained. (Unfortunately, an improperly installed component or bad solder joint or wiring mistake can take many hours to diagnose and at normal service rates, the service charge could well be more than the total cost of the electronics kit.)

Kit Reliability

Our range of electronics kits are intended for educational and amateur / hobbyist use only. The operation reliability of these kits is dependent solely on how the kits are built and how they are operated - both aspects which we at Eastern Voltage Research, LLC have no control over, therefore, we cannot guarantee the reliability or proper operation of these kits in any way, for both short term and long term operation. Therefore, we do not recommend the use of our kits for long term demonstration purposes, such as exhibits in both commercial and private demonstrations, including museums.

Kit Difficulty

Please refer to the following document regarding the difficulty level of our offered kits.
Kit Difficulty Guide (PDF)

Mains Powered Projects

To ensure your safety, please observe these safety measures. In no way are these complete. As safety requirements vary, please check with your local authorities, in order to comply with local requirements. If in doubt, seek the help of a qualified person.

Due to their nature and function, some electronics kits require MAINS power (115VAC) to be connected directly to the Printed Circuit Board (PCB). Extreme care should be taken when assembling and testing these kits. MAINS power must be treated very carefully. It is strongly recommended that you have previous experience of working with MAINS power equipment and / or circuits prior to attempting assembly of these kits. MAINS power can cause serious injury or death and must therefore be treated with extreme CAUTION. Construction, testing, and use of these kits should only be attempted by competent persons, and / or under the supervision of someone fully experienced in this field.

To ensure electrical safety, and also protection from fire or personal injury, make sure your MAINS operated equipment complies with the safety recommendations below:


- Use a suitable non-conductive enclosure (wood, plastic, etc...) If you use a metal enclosure, be sure that the enclosure is properly grounded to earth ground.
- Use a power switch for any device that consumes more than 10W of power. A double throw switch should be utilized for MAINS operated, transformer-less connections.
- A fuse should be utilized in series with the MAINS switch.
- Use a suitable MAINS input connector, and / or a UL three-conductor power cord which is clamped to your enclosure.
- Use properly insulated and sized wire when making any MAINS power connections inside an enclosure.

We accept no responsibility for injury, loss, or damage of any kind as a result of the purchase, assembly, or use of any of our products.

Limitation of Liability

The Customer will be responsible for ensuring the fitness for purpose of the Goods for the Customer's application. Eastern Voltage Research, LLC accepts no liability whatsoever or howsoever arising in respect to loss, damage, or expense arising from errors in information, or advice provided whether or not due to Eastern Voltage Research, LLC's negligence or that of its employees, agents, or sub-contractors save for any loss or damage arising from personal injury. Eastern Voltage Research, LLC shall not be liable to the Customer by reason of any representation (unless fraudulent), or any implied warranty, condition or other term, or any duty at common law, or under express terms of Contract with the Customer, for any indirect, special, or consequential loss or damage (whether for loss of profit or otherwise), costs, expenses, or other claims for compensation whatsoever (whether cause by the negligence of Eastern Voltage Research, LLC, its employees or agents or otherwise) which arise out of or in connection with the supply of the Goods or their use or resale by the Customer. The entire liability of Eastern Voltage Research, LLC under or in connection with the Contract with the Customer shall not exceed the price of the Goods except as expressly provided in these Terms and Conditions of Sale.

Parts Substitutions

Eastern Voltage Research, LLC reserves the right to substitute components in all electronics kits offered provided that the functional performance of a kit is not diminished in any way.


Prices are subject to change. Product styles and parts lists may vary. New Jersey orders must add 7% sales tax. If tax exempt, please include a resale certificate. We assume no liability associated with product usage. The buyer is liable and responsible for any loss, damage, or expense of any kind, arising out of the use or misuse of the products. By placing an order, the buyer signifies agreement to these Terms and Conditions of Sale.

Promotional Use of Customer and Client Information

Eastern Voltage Research may use customer and client information, as well as submitted photos and videos for promotional use on our website, facebook page, and twitter feed. However, individual's last names will never be used without prior permission from that individual. Customers and clients may opt out of any promotion that we may publish on our website, facebook page, or twitter feed, by simply sending us a request by email.

Other Terms and Conditions

Eastern Voltage Research, LLC is not responsible for typographical errors or for incorrect information which may be communicated either verbally, or written (i.e. email) regarding product or support inquiries, including pricing and product information.

Eastern Voltage Research, LLC reserves the right to change the terms and conditions of sale at any time and without notice.


Warranty Information

Defective Components

Its always easy to blame a component for a problem with your kit. Before you conclude that a component may be defective, please thoroughly check your work. Today's semiconductors and passive components have reached incredibly high reliability levels, and its sad to say that our human construction skills have not! However, on rare occasions, components which are defective may be shipped and included in your kit. All of our kit parts carry the Eastern Voltage Research, LLC Warranty that they are free from defects for a full ninety (90) days from the date purchase with the exception of power semiconductors (see below). Defective parts will be replaced promptly at our expense. If you suspect a component to be defective, please mail it to us for testing and replacement. Please send only the defective component(s), not the entire kit. The component(s) MUST be returned to us in suitable condition for testing. Please be aware that testing can usually determine if the part was truly defective or damaged by assembly and / or usage. If you did damage or "blow-up" a component through testing, don't be afraid to tell us. We're all human and in most cases, replacement parts are very reasonably priced.

Power Semiconductors

Due to the nature of the kits, we cannot offer any warranty or replacement for defective or damaged power semiconductor components. This includes both MOSFETs and IGBTs. That said, all power semiconductors are thoroughly tested prior to shipment to ensure that you have a power semiconductor that is non-defective and in NEW, unused condition.

Missing Parts or Components

Before assuming that a component value is incorrect, or missing, check the parts listing carefully to see if it is a critical value such as a specific semiconductor or IC, or whether a RANGE of values is suitable (such as "10uF to 47uF"). Sometimes, a different value component may be substituted in a non-critical application. Eastern Voltage Research, LLC electronics kits are assembled and packed with pride in the USA. If you believe we packed an incorrect part or omitted a component clearly indicated in your instruction manual as supplied, please contact us per the instructions on our technical support page as soon as possible.

Please see our technical support page for additional information and instructions on how to request components which were missing from your kit.

Factory Repair of Assembled Kits

Please note that at this time we are no longer offering the repair of assembled kit.

In the event you are having difficulty with your kit and need assistance, we do offer a factory repair service. However, to qualify for an Eastern Voltage Research, LLC factory repair, electronics kit MUST:


- All Factory Repair items MUST be accompanied by an Repair Authorization number. We refuse to repair any item that is sent to us without receiving pre-Authorization first and your items will be shipped back to you at your expense.
- NOT be assembled with acid core solder or flux
- NOT be modified in any manner
- BE returned in full-assembled form. Kits partially assembled will not be accepted and you will lose your repair deposit.
- BE accompanied by the proper repair fee. No repair will be initiated until we have receive the MINIMUM repair fee (1/2 hour labor) of $20.00 and the full return shipping cost.
- INCLUDE a written description of the particular problem and legible return address inside the SAME shipping carton. Please do not include your own hardware such as non-Eastern Voltage Research power supplies, transformers, batteries, cables, etc... Eastern Voltage Research, LLC, reserves the right to refuse repair on ANY item in which we find excessive problems or damage due to construction methods. To assist customers in such situations, Eastern Voltage Research, LLC, reserves the right to solve their needs on a case-by-case basis.
- All factory repair service work orders must first be approved beforehand.

The cost of repair for any kit is $40.00 per hour, regardless of the cost of the kit. Please understand that our technicians are not volunteers and that set-up, testing, diagnosis, repair, and repacking and paperwork can take nearly an hour of paid employee time even on a simple kit. Of course, if we find a component that was defective in manufacturer, there will be no charge to the repair of your kit. (But please realize that our technicians know the difference between a defective component and parts burned out or damaged through improper use or assembly.)

Electronics Kit and General Return Policy

If you feel, for any reason, that you will have difficulty building any kit-based product purchased from us (and you cannot get assistance from a friend), you can return it for a refund (minus shipping costs and a 50% restocking fee) provided a Return Authorization (RA) number is obtained first from us by email. The items must be returned to use (insured against damage in transit) at the customer's expense and received by us in original condition (with all product packaging, documentation, and a copy of the original sales invoice) within 14 days of original invoice date. We will not accept any returned kits where the ESD package has been opened. International customers are responsible for all return shipping, customs, and import duties and taxes. The RA number must be clearly stated on the shipping carton. Kits may not be returned for any form of refund or credit once the inner component packages have been opened or construction has been started. Eastern Voltage Research reserves the right to reject any returned item at any time for any reason, even if an RA number has been issued.

Components Return Policy

Individually purchased components may not be returned for any reason. If you do not agree with this policy, please do not order.

Plasmasonic Tesla Coils System Return Policy

Plasmasonic systems are custom built for each customer. As they are custom units, they cannot be returned under any circumstance unless otherwise authorized by Eastern Voltage Research, LLC.

Plasmasonic Limited Warranty Statement

Eastern Voltage Research will repair or replace any failed component or assembly , with the listed exceptions below, that Eastern Voltage Research has determined to be a result of a manufacturer defect.

To ensure a reliable product, all Plasmasonic systems are thoroughly tested, including a minimum 1 hour burn-in test.  Customers can be assured that they will receive a product that has been rigorously tested with the probability that all latent manufacturer defects have been tested out through high power burn-in testing.

What is covered:

Any component that has been proven by Eastern Voltage Research to be the result of a manufacturer defect with the exceptions below.  Eastern Voltage Research will review each component failure to determine if it is covered. 

What is not covered:

Because these are high power commercial Tesla Coil devices, and that we cannot control the manner and method in which a customer uses them, the following components are not covered:

  • IGBT Modules

  • DC Bus Capacitors

  • Rectifier Modules

  • Secondary Coil

  • Fiber Optic connectors and cables

User Modification / User Repair

Any user modification or user repair will void any warranty offered.

US Shipping and Warranty Repair Service

Customers are responsible for all shipping costs for returning failed components back to us for evaluation and in the determination of warranty service.  If a component failure has been determined to be a result of a manufacturer defect, Eastern Voltage Research will cover return shipping costs for individual components or small assemblies.  If service requires a full Plasmasonic assembly to be shipped, the customer is responsible for all shipping charges to and from our facility.

International Shipping and International Warranty Repair Service

International customers are responsible for all shipping costs, including export fees, taxes, and duties, for any warranty or repair services.