HiFi & Professional Audio Forum  

Elektor

Proizvodjači, distributeri, časopisi, linkovi..
User avatar

Topic author
sn
Forum Admin
Forum Admin
Posts: 2335
Joined: 15 Sep 2006, 04:09
Location: Belgrade
Contact:

Elektor

Post by sn » 02 Sep 2012, 12:51

Masterclass Modern Valve Electronics (DVD)
Dual-layer DVD - 165 mins. video and more
DVD-Modern-Valve-Electronic.jpg
DVD-Modern-Valve-Electronic.jpg (178.45 KiB) Viewed 4345 times
DVD-Modern-Valve-Electronic.jpg
DVD-Modern-Valve-Electronic.jpg (178.45 KiB) Viewed 4345 times
This double DVD presented by Menno van der Veen covers new technologies for enhancing valve amplifiers and is aimed at anyone seeking in-depth information on the operation of these amplifiers.

The filmed seminar starts with a short discussion of the classic approach using valve load line graphs, followed by current sources and current foldback techniques. Next, the negative effect of cathode electrolytics is covered as well as reducing supply voltage interference. With the help of state of the art measurement techniques the (in)correctness of feedback is proven, while also clarifying what’s happening deep within the core of the output transformer. This discussion allows the pleasant sound reproduction of valve amplifiers to be substantiated in detail.

This DVD includes:
• Valve Preamplifier presentation (75 mins.)
• Valve Power Amplifier presentation (90 mins)
• Other publications by Menno van der Veen
• Lecture Notes (27 pages)
• Datasheets

Please note: Elementary knowledge of electronics is required to be able to follow this seminar.

:sign http://www.elektor.com/products/cd-dvds ... 0638.lynkx

User avatar

DejanM
Audio Expert
Audio Expert
Posts: 4686
Joined: 18 Aug 2005, 13:14

Re: Elektor

Post by DejanM » 02 Sep 2012, 15:49

Imam prethodnu verziju - dobar i interesantan materijal sa puno interesantnih sema za DIY ...

Inace Menno daje workshopove po Evropi na temu konstrukcije i merenja u audio tehnici. Vrlo interesantno stivo ... a on je veoma strucan lik. Nije jeftino medjutim ...

User avatar

Topic author
sn
Forum Admin
Forum Admin
Posts: 2335
Joined: 15 Sep 2006, 04:09
Location: Belgrade
Contact:

Re: Elektor

Post by sn » 02 Sep 2012, 17:16


User avatar

DejanM
Audio Expert
Audio Expert
Posts: 4686
Joined: 18 Aug 2005, 13:14

Re: Elektor

Post by DejanM » 03 Sep 2012, 12:21

Kada sam pomenuo cenu mislio sam na te njegove workshopove ...

User avatar

Topic author
sn
Forum Admin
Forum Admin
Posts: 2335
Joined: 15 Sep 2006, 04:09
Location: Belgrade
Contact:

Re: Elektor

Post by sn » 30 Nov 2012, 22:31

New Entry Level Oscilloscopes from Tektronix

Image

Tektronix introduces the TBS1000 Series of entry-level oscilloscopes, giving electrical engineers, educators, hobbyist and tinkerers an affordable, full-featured tool for a wide variety of general purpose electronics test applications. Backed by a 5-year warranty, the new oscilloscopes feature 1 GS/s or 500 MS/s sample rates and 3 % DC gain accuracy down to 2 mV.

Compared to the previous TDS1000-EDU Series of oscilloscopes, the TBS1000 Series offers more bandwidth alternatives including new 25 MHz and 150 MHz models. A new waveform data logging feature allows users to save up to eight hours of triggered waveforms to a USB flash drive. Another enhancement is waveform limit testing that allows users to monitor signal changes and output pass/fail results. The TBS1000 is based on the same proprietary technology as the popular TDS2000 Series, and includes the same versatile triggering, automatic measurements, USB connectivity, and FFT capability.

Prices range from $520 for a two-channel 25 MHz instrument to $1,520 for a two-channel 150 MHz model. an Education Resource CD is included offering a broad range of lab exercises, instructor's guides and primers that cover the use of oscilloscopes and probes.

elektor

User avatar

Topic author
sn
Forum Admin
Forum Admin
Posts: 2335
Joined: 15 Sep 2006, 04:09
Location: Belgrade
Contact:

Re: Elektor

Post by sn » 09 Mar 2013, 00:09


User avatar

Topic author
sn
Forum Admin
Forum Admin
Posts: 2335
Joined: 15 Sep 2006, 04:09
Location: Belgrade
Contact:

Re: Elektor

Post by sn » 30 Mar 2013, 11:44

Elektor.TV


User avatar

Topic author
sn
Forum Admin
Forum Admin
Posts: 2335
Joined: 15 Sep 2006, 04:09
Location: Belgrade
Contact:

Re: Elektor

Post by sn » 07 Apr 2013, 19:00

Elektor.TV

Analog Vs Digital Oscilloscope Noise


User avatar

Topic author
sn
Forum Admin
Forum Admin
Posts: 2335
Joined: 15 Sep 2006, 04:09
Location: Belgrade
Contact:

Re: Elektor

Post by sn » 13 May 2013, 14:30

audioXpress Magazine:

Preview: http://www.gotomyxpress.com/ (click free preview)
auxp.JPG
auxp.JPG (109.46 KiB) Viewed 2638 times
auxp.JPG
auxp.JPG (109.46 KiB) Viewed 2638 times
:sign http://audioamateur.com/audioxpress-magazine/


elektor.JPG
elektor.JPG (21.62 KiB) Viewed 2638 times
elektor.JPG
elektor.JPG (21.62 KiB) Viewed 2638 times

User avatar

Topic author
sn
Forum Admin
Forum Admin
Posts: 2335
Joined: 15 Sep 2006, 04:09
Location: Belgrade
Contact:

Re: Elektor

Post by sn » 31 May 2013, 12:13

Easy Come, Easy Go
This is true unless it's about soldering, some components are really hard to remove! Chip Quick is a low melting point removal alloy that will ease your burdens;


User avatar

Topic author
sn
Forum Admin
Forum Admin
Posts: 2335
Joined: 15 Sep 2006, 04:09
Location: Belgrade
Contact:

Elektor

Post by sn » 18 Oct 2013, 18:23

Noise Cancellation Driver ICs Feature Zero Audible Hiss

Publication date: 14 October 2013

Image

"The new AS3435 and AS3415 ANC speaker drivers from ams AG pave the way for a new generation of noise cancellation stereo headsets with zero audible hiss. They are also the first active noise cancellation (ANC) ICs with integrated bypass functionality, enabling headset manufacturers to fashion sleeker and lower-cost housing designs. The AS3435 and AS3415 also include bass boost equalization capability, eliminating the need for a discrete signal processing IC for this purpose.

The AS3435 (for feedback systems) and AS3415 (for feed-forward systems) incorporate new ultra-low noise amplifiers with a 900 nV input-referred noise floor, eliminating audible high-frequency hiss when paired with low-noise microphones. They also feature 35 mW of stereo output power with THD+N of 0.1% into a 32 Ω load and a typical signal-to-noise ratio greater than 110 dB.

The integrated bypass function of the new ANC ICs enables simplification of the mechanical design of headset housings. Conventional ANC headsets require a mechanical switch to select bypass mode when the headset’s battery is completely discharged. This switch constrains the design of the headset’s housing and circuit board. With the AS3435 and AS3415, the music signal can pass through the ANC chipset without any power source connected to the device.

The devices’ analog implementation of noise cancellation results in power consumption often two or three times lower than equivalent digital solutions. Featuring typical power consumption of 10 mW at 1.5 V in noise cancellation mode, either device can support operation for more than 100 hours from a single AAA battery.

An evaluation kit for the AS3435 and AS3415 is available online from ams."

:sign AS3415 data sheet
:sign AS3435 data sheet

Elektor

User avatar

Topic author
sn
Forum Admin
Forum Admin
Posts: 2335
Joined: 15 Sep 2006, 04:09
Location: Belgrade
Contact:

Re: Elektor

Post by sn » 21 Nov 2013, 22:24

Linear Audio 6 Now Available from Elektor

Free JFET Pair Included!
Linear-Audio-6-700.jpg
Linear-Audio-6-700.jpg (76.43 KiB) Viewed 1180 times
Linear-Audio-6-700.jpg
Linear-Audio-6-700.jpg (76.43 KiB) Viewed 1180 times
''Linear Audio is back with its seventh bi-annual bookazine completely dedicated to technical audio and perception. As usual, Linear Audio is crammed with insightful, creative and thought-provoking content from various expert academics and professionals.

In anticipation of a piece on Advanced Power Amplifier concepts, we have a Guest Editorial from its writer, David Zan which will set the tone for his upcoming article. One of the highlights of this issue is diehard Erno Borbely teaming up again with Sigurd Ruschkowski to design Proteus–a current input moving coil preamp. By courtesy of Linear Systems Inc., this issue comes with a FREE pair of 2SK170BL and 2SJ74BL JFETs (as long as stocks last)!

In the way of tutorials, we’ve got Bob Cordell explaining his own perspective on Advanced Amplifier concepts in TPC and TMC Feedback Compensation for Power Amplifiers, whilst Hans Polak reconciles phono preamp specifications that often excel in data that cannot be compared between units. Robert Munnig Schmidt is back with Fine-tuning and measurements of a sensorless motional feedback subwoofer, and in the first of a series of articles, Ronald Quan provides a nice, clear overview of noise issues in circuit design.

This issue of Linear Audio contains all the trimmings that have come to be expected, including another rousing piece from our columnist Stan Curtis which outlines some of the pitfalls you can encounter when transforming a prototype into a fully real product, as well a book review of Douglas Self’s 6th edition of Audio Power Amplifier Design.

Linear Audio 6 is now available from the Elektor webshop for just £18.95 / €23.50 /US $30.60 and an additional 10% discount for Elektor GREEN & GOLD members!''

:sign http://www.elektor.com/news/linear-audi ... 4327.lynkx

User avatar

Topic author
sn
Forum Admin
Forum Admin
Posts: 2335
Joined: 15 Sep 2006, 04:09
Location: Belgrade
Contact:

Re: Elektor

Post by sn » 12 Apr 2014, 20:56

axpre.JPG
axpre.JPG (71.98 KiB) Viewed 902 times
axpre.JPG
axpre.JPG (71.98 KiB) Viewed 902 times
:sign http://www.gotomyxpress.com/ (submit or free preview)

User avatar

Topic author
sn
Forum Admin
Forum Admin
Posts: 2335
Joined: 15 Sep 2006, 04:09
Location: Belgrade
Contact:

Re: Elektor

Post by sn » 17 May 2014, 12:40

Juni 2014
2014-06.jpg
2014-06.jpg (24.06 KiB) Viewed 741 times
2014-06.jpg
2014-06.jpg (24.06 KiB) Viewed 741 times
:sign http://www.gotomyxpress.com/

User avatar

Topic author
sn
Forum Admin
Forum Admin
Posts: 2335
Joined: 15 Sep 2006, 04:09
Location: Belgrade
Contact:

Re: Elektor

Post by sn » 18 May 2014, 00:37

Juni 2014
VC-201406.jpg
VC-201406.jpg (23.18 KiB) Viewed 740 times
VC-201406.jpg
VC-201406.jpg (23.18 KiB) Viewed 740 times
:sign http://www.gotomyvcoil.com/

Post Reply