From JASCO
United States currency is the most counterfeited currency in the world with Canadian money a close second, these currencies popular due to their status as a 'hard' currency, similar to gold. Large numbers of bills in all denominations are counterfeited and passed (given as payment) to unsuspecting merchants and banking institutions. In the past, only large denominations like the $100 and $50 bill were counterfeited. Currently, however, numerous businesses report the receipt of counterfeit $5, $10, and $20 notes with the $20 note being passed with the highest frequency.
One of the most common types of counterfeit detection is provided by ultraviolet (uv) light. The operating principle is simple; if the bill being checked has fluorescence then it is genuine. The idea behind this is that the paper used in the printing of real currency has a high starch content making it appear dull under uv light. Counterfeiters generally use bond paper that has virtually no starch and is bleached. The bleached bond paper fluoresces under uv light.
Product Announcements
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Toroidal Low Profile Transformers are used in slim-line cabinets in audio, video, and broadcasting equipment. They are also used in rack systems in the telecommunication and computer industries.
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POWERTRONIX Custom-made Toroidal Power Transformers are designed and made according to customer specification. Power ranges from 18VA to 15,000VA. They are UL, cUL approved, and CE marked...
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Medical-Grade Toroidal Power Transformers are built to form, fit, and function in the 15 VA to 30,000 VA power range. All standard and custom-made Powertronix Toroidal Transformers are approved for...
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POWERTRONIX Toroidal 3-Phase Transformers are made to customer specification. They are small and efficient, have very low EMI and RFI, and offer a wide range of options and mounting flexibility.
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POWERTRONIX Auto Transformers are single winding Toroidal Transformers made for voltage step up or step down. Auto Transformers are used in applications where there are no requirements on electrical...
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Powertronix, UL approved Control Transformers provide a low and safe control voltage for the operation of relays, solenoids, small motors, pumps, fans and blowers, heating elements, control valves for...
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POWERTRONIX 3-Phase AC/DC Power Supply is a linear power supply converting AC line voltage to DC power. It offers extremely safe and reliable DC power for installations requiring a DC bus system. This...
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The STP series of toroidal transformers by Signal offer VA power ranges from 100 VA to 2000 VA inclusive. These standard transformer products share common lead lengths, colors, mounting configurations...
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POWERTRONIX Standard Toroidal Power Transformers are used for step-down voltages. Dual primary windings for series or parallel connection provide universal voltage range and 50/60Hz operations. The...
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Low Profile Printed Circuit Mount Transformers By Signal - For low power and critical height applications. Hum bucking (semi toroidal) construction that minimizes radiated magnetic fields. Call us for...
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Topics of Interest
Efficiency is defined as the ratio of the output power to the input power, the difference between the two being the losses. The power losses of the transformer are comprised of core losses and copper...
Wound primary current transformers have primary windings that usually consist of more that one turn. Wound primary transformers have an internal primary winding and have no windows for the primary...
Bar transformers (bar current transformers) are toroidal transformers with a bus bar permanently inserted through the window of the toroid. The bus bar serves as the primary conductor. Bar...
Sec 4.1: Introduction
More recent experiments by the author (since the publication of the first edition of this book) revealed some interesting results concerning low-impedance applications.
Negative Stiffness a Big Positive for Vibration Isolation All-mechanical systems shield delicate electronics from low-frequency vibrations and require less space, investment, and maintenance. •...
