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Piezoelectric Crystal Oscillators

Crystal Oscillators are the Time Base on a wristwatch or a home clock, analog or digital, Mechanical clocks have become rare due to the Maintenance and Accuracy. Some crystals can change dimensions on a electric force, some generate electricity on Mechanical Strain.

Crystal Oscillator – Parallel Resonant

Ceramic Resonators – “The ceramic components are made of high stability piezoelectric ceramics that functions as a mechanical resonator. The frequency is primary adjusted by the size and thickness of the ceramic element.”

Piezoelectric Crystal Oscillators


In the mechanical gramophone a metal needle and a horn would amplify the sound. When Record players came, the use of magnetic pickups made the needle size a bit smaller but the signal was weak. The crystal type pickups made the needle thinner and the electricity generated by crystal moving on the grooves was large, in mV. A preamp was rarely required. But Equalization preprocessing of audio was needed, to match the ear response. The electric gramophone made LP or Long Playing Record Players possible. It is analogous to DVD having more capacity than CDROM.

Crystal Oscillator – Wikipedia

“When a crystal of quartz is properly cut and mounted, it can be made to distort in an electric field by applying a voltage to an electrode near or on the crystal. This property is known as piezoelectricity.”

Crystals and Their Applications

Introduction to Quartz Frequency Standards – More than one billion quartz crystal oscillators are produced annually for applications ranging from inexpensive watches and clocks to radio navigation and spacecraft tracking systems.

Microcontroller Clock-Crystal, Resonator. – rystals, ceramic resonators, RC (resistor, capacitor) oscillators, and silicon oscillators are four types of clock sources for use with a microcontroller (µC). The optimal clock source for an application depends on many factors including cost, accuracy, and environmental parameters.

Crystal Oscillator Tutorial Articles – Types of Crystals and oscillators, Frequency and  relationship with Temperature, Aging and Stability of the clock.

Technical Literature – Frequency Electronics Inc. – New discoveries, research and development information, and scholarly works from some of the engineers and scientists in the FEI family,

Thaikits – Electronic Kits for Learning

A group of test engineers in Thailand who worked in an Electronic factory more than 12 years have started a small business to sell electronic projects and electronic kits worldwide in 2007.

CH012 Transistor Curve Tracer adapter XY Oscilloscopes 2 ranges Bias

Thaikits - Electronic Kits for Learning

Some interesting kits are HHO High Frequency PWM DC Motor Speed Controller 30A, CH018 Cycling Timer 1.5 -180 minutes ON-OFF 12VDC/30A Heavy Duty 110V/240VAC, CH024 ICL8038 Function Generator Sine Triagle Square wave 0.5Hz-100kHz.

5/16 Moo 18 ,Bueng Kham Phroi,Lam Luk Ka, Pathum Thani 12150, Thailand

Futurlec Components and Semiconductors

Large stockist and supplier of electronic components throughout the world. The Electronic Components and Semiconductor Superstore.

Integrated Circuits, LED’s / LCD’s, Connectors, Microcontroller Boards, Hardware, Project Boxes, Stepper Motors.

Futurlec Semiconductor Superstore

“Orders from hobbyists and single part orders are most welcome. We do not have any minimum order charge and we welcome all customers from anywhere in the world.”

Mini Boards - Futurlec

Mini Boards – Futurlec

These small compact boards are ideal to enhance your control system or development project. Add new functions and expand the functionality of your system, with a wide range to boards to choose from, including MP3, Real-Time Clocks, Keypads, RS232, RS422, Flash Memories, SD Cards and many more.

1133 Broadway, Suite 706, New York, NY 10010 USA

RadioShack- Audio Video Electronics

Some things you can find there -CB & Ham radios, Walkie-talkie (GMRS/FRS) radios and Shortwave & multiband radios.

RadioShack- Audio Video Electronics

The company was started as Radio Shack in 1921 in Boston, Massachusetts, by two brothers, Theodore and Milton Deutschmann, who wanted to provide equipment for the cutting-edge field of amateur, or ham radio.

RadioShack- Audio Video Electronics

Theodore and Milton Deutschmann opened a one-store retail and mail-order operation in the heart of downtown Boston. They chose the name, “Radio Shack,” which was a term for the small, wooden structure that housed a ship’s radio equipment. The Deutschmanns thought the name was appropriate for a store that would supply the needs of radio officers aboard ships, as well as “ham” radio operators.

The first 40 yearsRadioShack Corporation – Wikipedia

Sparkle Labs Electronics DIY Kits

Sparkle Labs brings their expertise in design, branding, usability, and education to create hi-tech, hi-touch products and environments.

Sparkle Labs Electronics DIY Kits

Like the old Radio Shack spring circuits but updated with modern teaching styles. The growing DIY movement is empowering people to take control of their products and environment.

Sparkle Labs Electronics DIY Kits

Discover Electronics Kit contains everything you need to learn the basics of electronics and make your own projects. It contains the most common electronics components as well as a prototyping breadboard for you to get started right away. Easy full color diagrams teach you how to bring your own ideas to life.

RCA connector or Phono Connector

An RCA connector, sometimes called a phono connector or cinch connector, is a type of electrical connector commonly used to carry audio and video signals. The connectors are also sometimes casually referred to as A/V jacks.

RCA connector or Phono Connector

The name “RCA” derives from the Radio Corporation of America, which introduced the design by the early 1940s for internal connection of the pickup to the chassis in home radio-phonograph consoles. It was originally a low-cost, simple design, intended only for mating and disconnection when servicing the console. Refinement came with later designs, although they remained compatible.

Pololu – Electronic Modules for Robotics

Small electronics modules and simple mechanical components for for robot and motion control. Web Store provides parts like small gearboxes, breadboards, servos, and robot kits too.

Pololu – Electronic Modules for Robotics

The Orangutan SVP robot controller is a complete control solution for small and medium-sized robots running at 6 – 13.5 V. The module is designed around the powerful Atmel ATmega324PA AVR microcontroller (32 KB flash, 2 KB RAM, and 1 KB EEPROM) or ATmega1284P (128 KB flash, 16 KB RAM, and 4 KB EEPROM) running at 20 MHz .

Orangutan SVP-1284 Robot Controller

Orangutan SVP-1284 Robot Controller

The Orangutan SVP is also available as an SVP-324 partial kit or SVP-1284 partial kit that has all of the surface-mount parts pre-soldered and a variety of through-hole parts included separately.Mechanical Components include Motors, Gearboxes, RC Servos, Wheels, Tracks, Ball Casters etc.