audioXpress February 5. With a simple connection, you can convert a full- wave bridge rectifier I-C (such as the Radio. Shack ). Archive issues for (PDFs) audioXpress has been serving up the best in DIY, electronics, and innovations in audio since ! With an increased focus on. audioXpress Issue May Click To Enlarge. Item #: AX-FI; Manufacturer: audioXpress. VOLUME NUMBER 4. May Tang Band Full -Range.
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Apart from looking at some commercially available stroboscope discs, Ron Tipton explains how to print one from files that are freely available on the Internet, and explains how to build your own multiple-LED lamp to check the rotations. We think that’s more to it. March 27, by Joel Hatch. This is a project that quickly became the focus 20010 lots of tube-oriented forums and has inspired long threads and many iterations, including further articles published in audioXpress from the author himself.
This simple single-ended amp project by Pete Millett is a great performer and a very well documented project that was immediately adopted by many DIY’er’s. This article was originally published in audioXpress, September When it came to selecting topologies for the balanced inputs and outputs, I ruled out transformers due to high cost, physical bulk, and weight.
A pot with 64 levels and precision metal film resistors that is hard to beat for sound or facility, as he describes it. This article was published in audioXpress, July This article was originally published in audioXpress, February Charvat, two pre-amplifiers are used with a battery powered high voltage supply.
In this project article for audioXpress, George Ntanavaras describes the design and audioxprfss of a high-quality RIAA preamplifier for moving coil cartridges based on high-quality Analog Device AD op-amps designed for low-noise audio applications and driven from very low source impedance.
The square wave is fed into a small audio power op-amp. October 17, by Ron Tipton.
Now that turntables are back in force, this excellent project not only allows some knowledge about a vital part of the motor’s rotational speed adjustment, but it also dives into audioxrpess of the most crucial aspects of a record player for anyone interested in a little DIY or restoration projects.
December 13, by Gregory L. The Audio Voice Newsletter.
Items about: Project Articles | audioXpress
The project started with a clean sheet, looking to address potentiometer design with a quality that rivaled existing designs while maintaining a audioxpresss cost. This article was originally published in audioxpress, March This article was published in audioXpress, April In this article, Ron Tipton explores the use of stroboscope discs to determine whether your turntable is set to the correct rotational speed.
October 31, by George Ntanavaras. This article was originally published in audioXpress, March This is not surprising.
Getting the Most from THAT’s Balanced Line Drivers and Receivers
This article was originally published in audioXpress, October This article by Ron Tipton details the design and construction of the TDL Model high-performance microphone preamp, using a differential input stage that used compound transistor pairs with circuit resistance values, computer optimized for very low output noise. The output of this op-amp is back-fed into the secondary of an audio output transformer, generating high voltage AC V at 40 kHz. There’s no better way to pay tribute to Ron than revisit some of these projects.
Each file has two main pages: Stamler A Power Supply Spreadsheet This article describes a spreadsheet program for designing low-voltage power supplies using common IC three-terminal regulators. This article was originally published in audioXpress, June July 25, by Pete Millett. This article was originally published in audioXpress, December This article was originally published in audioXpress, April This article was published in audioXpress, March A PP 25L6 Amplifier In this classical tube amplifier project, author Bob McIntyre offers what is effectively the foundation for many designs that we can find currently in the market.
Sadly, the audioXpress community lost one of its most esteemed and prolific writers. The Mighty Mouse is indeed a good sounding and inexpensive project that is also a good introduction to tube amplification. The results, as the author describes, “combine the advantage s of the push-pull mainly power to the wonderful character of the SE: The author describes a microphone amplifier designed to interface a standard dynamic microphone to a soundcard audioxprress other computer microphone input with a 5V through 2.
March 21, by Ron Tipton. The entire system runs on 8 AA batteries and should operate for approximately 4 hours continuously.
In this article, Joel Hatch explains how to build a variable frequency synchronous motor controller to control turntable speed. This signal is rectified, filtered, and regulated in a conventional sense.
audioXpress Archive Select page | audioXpress
December 12, by Gary Galo. Following the publication of its original SE 6C33C amplifier in audioXpress JulyAri Polisois returned with more information on how to further simplify the whole construction and reduce the costs.
April 28, by Ari Polisois. The high voltage supply works by creating a square wave with a timer. The spreadsheets are in standard Excel format, and should work in just about any spreadsheet program. May 8, by Ari Polisois.