Science and Technology > Engineering

Updated May 24, 2023!! The V1083 Berkeley III Repair Supplement contains information helpful in repairing the Thomas Organ Vox V1083 "Berkeley III" guitar amplifier. It extends the more general how-it-works information contained in the Vox Owner's Safety Net with V1083-specific schematics, parts lists, board diagrams and other info on this one model. It is much more than a copy of the original factory schematics, and includes entirely redrawn schematics and board diagrams as well as working voltages taken from simulations of the circuits. This allowed sidestepping the occasional error in the original Thomas Organ service information. This update corrects some subtle mistakes and incons ...

This journal is all about exploring, observing, and being creative. You're invited to write down any thoughts, questions, or ideas you have and dive deeper into them. It's your special place to jot down anything you want to learn more about. Use this journal to document your experiments and cool ideas, and share what you discover as you go along!

Physicist Kyle Forrester has a dilemma; risk his life to follow his moral compass and reveal a breakthrough solar technology or go along with international energy cartels, crooked politicians and oddly, his own boss, who are determined to bury it. When his fiancée, Sylvia Cervenka is kidnapped and he finds a bomb planted in his car, the choice is made for him. Sylvia has secrets she is keeping from Kyle. Emerging from the ruins of the fallen Soviet empire, she and her family turned to nefarious organizations for survival amid a shambled economy. Also a physicist, she was indirectly involved in the murder of Kyle’s predecessor and was ordered to find a replacement. That replacemen ...

This book chronicles the history and development of the Kevlar vest by one of the original creators. Over the past 2000 years there has been a continuing need for protective armor to counter the advancements in weapons. It was not until the 1960's that a new material was developed and technology was realized that would revolutionize personal protection. The discovery of a synthetic fiber, Dupont's PRD 49-IV, that later became Kevlar, the development of ballistic testing and medical research would come together and create a new and effective body armor that would go on to save countless lives of law enforcement officers, soldiers and government officials. This is the story of h ...

A detailed repair supplement for the earliest of the Thomas Organ Vox amplifiers. This adds to the design and how-it-works information in the Vox Owner's Safety Net with detailed parts lists, schematics, debugging voltages, and advice on replacement parts. This supplement corrects the mistakes in the Thomas Vox factory service literature.

The Repair Supplement to the Vox Owner's Safety Net for the Vox Cambridge Reverb V1031 and V1032, and the electronically identical Berkeley II V1081. This manual covers detailed schematics, PCB diagrams, parts lists, parts substitutions and other information for repairing these vintage amps. It extends the design and overview information to the Vox Owner's Safety Net.

This 86-page book presents basic and advanced concepts in circuit dynamics - the circuit theory of frequency response, risetime, bandwidth, open-circuit time constants, Miller's frequency-dependent theorem, the Extra Element Theorem (EET), ZEET, Blackman's Z Theorem, the Cochrun-Grabel method for finding circuit poles, strategies for maximizing circuit performance involving stage isolation and pole separation, and the ability to analyze amplifiers by modularizing and controlling stage interfacing. It supplies derivations and more detail than the author's book, Transistor Amplifiers. It corrects some popular misconceptions about calculating bandwidth, fills in neglected high-frequenc ...

Far more than just a dry technical work, "Confessions of an Audioholic" is an entertaining, humanistic and very personal glimpse into the world of consumer electronics products. Steve Feinstein--a consumer electronics veteran of more than 40 years--shares his insights, observations and opinions about the most memorable equipment, companies and personalities of the last half-century. Even if you don't know the difference between a capacitor and a decibel, you will find this book endlessly fascinating and captivating.

A summary of investigations (1962-2022) into the origin and nature of existence. For those interested in the fundamental logic that drives physics … the universe, conjectured to be the embodiment of logic rather than its subject, is forced from nothing, step by step, uniquely, as the geometric embodiment of a simple integer count ... along with all major aspects of physics and cosmology … inclusive of quantifying the four forces and describing their active cause in geometry. Additional topics considered: consciousness, psychology, philosophy, theology, religion, government, economics, work, business, education, language, music, art, geo-sciences, interstellar propulsion, megalithic eng ...

From the Landplane Preface > ...this Guide attempts to present the essentials of safe and technically sound flight testing to the E-AB pilot community in a practical, easy to understand way. The flight test topics deemed important to E-AB flight testing derive directly from NTSB recommendations and latest FAA guidance. They represent a mixture of test philosophy and how-to-do-it flight test techniques subjects with an overall emphasis on best practices and safe test conduct. From the Landplane and Seaplane Preface > … there are differences in test procedures between landplanes and seaplanes and they deal with their ground and water handling regardless of whether or not the airplanes ...