ubld.it
Hybrid Vacuum Tube Audio Amplifier - ubld.it - TrueRNG and Electronic Kits
http://ubld.it/products/hybrid-vacuum-tube-audio-amplifier
TrueRNG v3 – Hardware Random Number Generator. TrueRNGpro – Hardware Random Number Generator. TrueRNG v2 – Hardware Random Number Generator. WIOT Board – Wireless Internet of Things. Modified Atari Punk Console Synth Kit – Atari Punkr. USB PIC16F1455 Breakout Board. Pico Load Kit – 2 Amp Adjustable DC Electronic Load. Hybrid Vacuum Tube Audio Amplifier. Hybrid Vacuum Tube Audio Amplifier. This product is sold as a kit and is modifiable. The base is unfinished and may be stained, varnished, oiled, or ...
radio-magic.ru
Программы для измерений
http://www.radio-magic.ru/programmu-dlya-radiolubitelej/analyz-prog
Программы для генерации сигналов. Программы для генерации сигналов. Опубликовано 29.11.2013 14:41. Ниже представлен список программ который будет полезен многим радиолюбителям для анализа сигналов различных форм и частот. Некоторые из абсолютно бесплатные и их можно скачать с официального сайта а за некоторые нужно будет заплатить некоторую сумму. Конечно можно найти и ломаную версию на бескрайних просторах интернета. Сайт программы Visual Analyser. Сайт программы Frequency Analyzer. Скромная бесплатная ...
kblsystems.blogspot.com
KBLsystems Audio Lab: dual FFT analyses
http://kblsystems.blogspot.com/1987/04/dual-fft-analyses.html
Audio musings from my garden shed. Monday, 13 April 1987. Part 2: Getting to know dual FFT analysers. Now we know that we need both magnitude and phase plots to describe the behaviour of our system under test. So wouldn't it be nice to have some tool to measure these? For some 15 years now our PC's are powerful enough to do the multiple, fast calculations we need to make use of mathematics developed by Jean Baptiste Fourier. Enough of this math stuff which I also hardly understand, why dual. So if you wa...
acousticolour.net
ACOUSTICOLOUR | musictechnology, audiotechnology, sounddesign & education
http://www.acousticolour.net/index.html
Musictechnology, audiotechnology, sounddesign and education. Marcel Wardenier has problems with. And much prefers to let physics do the talking. Is considered as the optimal enclosure for the one-way loudspeakers with minimal diffraction. H F Olson, 1957. A full-range loudspeaker driver. Unit is defined as a driver which reproduces as much of the audible frequency range as possible, within the limitations imposed by the physical constraints of a specific design. Responses of my latest prototype. At δ = 0...
heao.it
PRESILENT-B
http://www.heao.it/11-articoli/6-presilent-b2.html
CONFIGURABLE LOW NOISE LOW THD STEREO PREAMPLIFIER. Configurabile al 100%;. Evoluzione del primo Presilent;. Possibilità di ingresso bilanciato (esclude l'ingresso sbilanciato);. Uscita bilanciata/sbilanciata o parallellizzabile per aumentare la corrente di uscita;. Uscita cuffia ad alta qualità con Buffer LME49600 (opzionale);. Possibilità di trasformazione in stadio PHONO RIAA;. Risposta in frequenza 10-90000 Hz /- 0,03dB;. Distorsione ad 1Khz -1Vpp 0,008 %;. Alimentazione duale da /- 5V a /- 18V;.
heao.it
PSU-D / PSU-DH
http://www.heao.it/11-articoli/5-psu-d.html
COMPLETE LOW NOISE AUDIO POWER SUPPLY FOR DAC AND PREAMPLIFER. DUE USCITE STABILIZZATE A BASSO RUMORE E BASSA IMPEDENZA. Con trasformatore a minima dispersione magnetica, bassa perdita di carico e basso livello di rumorosità. Completo di interruttore, spina da pannello C8 e fusibile. Potenza massima di uscita 25W TOTALI. Tensione uscita massima parte STABILIZZATA /- 35VDC. Doppio Led di stato per presenza tensioni DC in uscita. Supporta stabilizzatori a 3 PIN: LM317, LT1085 e a 5 PIN: LT3080, LT3083.
kolbrek.hoyttalerdesign.no
Exponential Midrange 1
http://kolbrek.hoyttalerdesign.no/index.php/horns/exponential-midrange-1
The Desibel Horn System. Distortion in small signal tubes. Last Updated on Saturday, 03 November 2012 17:37. Written by Bjørn Kolbrek. A 200Hz Exponential Midrange Horn for Altec 288B. An exponential midrange horn? You must be kidding! Tractrix is what is used in the midrange, or else you get 'horn sound'! Why exponential horns in the midrange? Let's look at the differences between the way horns are used in these two different ranges, and the difference between expo/hypex and tractrix/LeCléac'h. To test ...
kblsystems.blogspot.com
KBLsystems Audio Lab: April 1987
http://kblsystems.blogspot.com/1987_04_01_archive.html
Audio musings from my garden shed. Monday, 13 April 1987. Part 2: Getting to know dual FFT analysers. Now we know that we need both magnitude and phase plots to describe the behaviour of our system under test. So wouldn't it be nice to have some tool to measure these? For some 15 years now our PC's are powerful enough to do the multiple, fast calculations we need to make use of mathematics developed by Jean Baptiste Fourier. Enough of this math stuff which I also hardly understand, why dual. So if you wa...
