Goodness comes to those who vibrate
At its core, a curve tracer generates an I-V (Current-Voltage) curve. It does this by actively varying (sweeping) the voltage applied to a component and simultaneously measuring the precise amount of current that flows through it at each voltage step. Sweeping (2-Terminal Devices): For a simple component like a resistor or a diode, the curve … Read more
Hot-Potato’d from buyer to buyer, Chinese equity firm HONGSHAN last paid $1.1 billion. I live in Milton Keynes and have had drum lessons from him. Amazing strict time drummer. I remember in the late 70’s he had a music shop in Queensway in Bletchley. I also lived across the road from Terry Marshall in an … Read more
Transcript 0:01sometimes life is well unpredictable and0:09sometimes things just seem to be the way they work supposed to be what you see on0:18the screen is a trace of a pentode0:24vacuum tube it is being displayed on a0:30Tektronix model 570 characteristic curve0:36tracer so what do those two have how do I know what time that was … Read more
Vacuum Tubes in 2025 – Not Made in America As of 2025, the biggest suppliers of vacuum tubes (new production) are a small group of manufacturers — nearly all based in Russia, China, and Slovakia — with a few large retail distributors worldwide. Here’s a breakdown: Top Vacuum Tube Manufacturers 🇷🇺 Reflector (Saratov, Russia) – … Read more
The Yin-Yang Audio Amplifier Test Regarding stuff like this https://www.bing.com/videos/riverview/relatedvideo?q=”HI-Res”+tube+car+amp I’m wondering if anyone has accomplished tests in which the positive lead of the speaker is driven by Primary Amp Under Test (PAUT) while the negative lead of the speaker is driven by the Secondary Amp Under Test (SAUT), both amplifiers being fed the same … Read more
Capacitors vs Sound Quality Deep Dive – Effects of Capacitor Materials and Construction on Signal Quality and Audio Performance https://www.youtube.com/results?search_query=capacitors+sound+quality A deep dive into how various capacitor materials and constructions audibly and measurably affect audio and signal quality. This includes both objective measurements (like THD, TIMD, slew rate, inductance, etc.) and subjective perception from the … Read more
An examination of how power supply design affects audio circuitry and ultimately sound quality Great. I’ll conduct an in-depth investigation into how power supply design affects audio circuitry and ultimately sound quality, considering both objective performance and subjective perception. This will include foundational and recent research, and apply to all categories of audio equipment, from … Read more
Telephone Power Plants An interesting technical explanation of how and why the phone system went down immediately following broadcast of JFK shooting. Commenter notes same effect after Elvis death. As an electrical engineering student in the early 1990’s I went on a field trip to visit a telephone exchange. We were shown into a huge … Read more
“Chinese Cheap” – Stupidity and Sabotage disguised as Progress – Beware ChatGPT also Saboteur against reality It is important to be plain and clear…and accurate. Panasonic exited the cap market. It was both an overall cheapening — at the expense of all customers — and it was also a sabotage attempt that actually worked. The … Read more
Long before magnetic tape, magnetic wire recorders were a thing Mr Carlson’s Lab – “Another great video. This voice on the wire is from someone probably long dead. Interesting and mysterious to think about. A ghost voice from somewhere in time.” Voices are trapped in this wire, let’s hear what they have to say! Join … Read more
Capacitors vs Inductors Magnetic vs Electric fields. Capacitors apply electric fields. Inductors apply magnetic fields. The article “Capacitors vs Inductors” from soundQuality.org, published on February 16, 2025, delves into the fundamental differences between capacitors and inductors, focusing on their roles in electrical and audio engineering. Energy Storage Mechanisms Capacitors and inductors are both passive components … Read more
Working ATT Skyway Microwave Relay Stations The issue was not curvature, which is theoretical; instead, the issue was water absorption of microwave S and C band energies, which is appreciable, combined with appreciable beam divergence, combined with the maximum sensitivities attainable at receivers, combined with the safety limitations rightfully imposed upon terrestrial-layer signal power. The … Read more
Gerald Costa Transcendental Immersive Musical Experience TIME – 11-year Otherworldly Pursuit of High-End Vehicle Audio Excellence
