Amplifier BABY OF LYNX

The introduction of this article should introduce an interesting construction of a relatively simple and quality NF amplifier, the second part describes the circuit solution and the principle of this amplifier's function. The following section is dedicated to the amplifier design itself and to the important calculations used in the amplifier design. The fourth part of the article contains instructions for amplifying the amplifier both with the use of recommended components and with the use of alternative parts. The following section lists the properties of the amplifier and its measurement results. The last part of the article contains photographs of the amplifier and its previous prototypes and, among other things, the basis for the construction.

Introduction

The design of the "Baby of Lynx" Amplifier is suitable in its basic version due to its not too complex complexity even for less experienced designers, but it is more focused on constructors. Among the main advantages of the amplifier are, in addition to its lower demands, also relatively small dimensions, which call for use in multichannel systems. Also, the construction of this amplifier is not expensive. Usually and today, it is practically not at all customary for these features to go hand in hand with the sound quality. That's what the amplifier can really surprise. Despite the low cost associated with its construction, the amplifier retains very low distortion and a large ratio between the useful signal and the noise. Excellent sound parameters are achieved, among other things, by the use of excellent ON signal transistors and high-end Toshiba end-to-line transistors designed specifically for audio amplifier applications. The audio parameters of the amplifier will satisfy even the most demanding listeners. Amplifier integration is very similar to legendary studio amplifiers such as Phase Linear, SAE, GAS or Revox. The amplifier scheme is based on the involvement of Jan Dupot, Danish designer, named Lynx Power Amplifier v. 2.2, as a non-commercial project for the general public. With his kind permission, I am introducing my version of the Amplifier called Baby of Lynx, which I spent a lot of time on editing and creating prototypes. And I not only believe that the amplifier will serve some designers for a long time and reliably and will be very happy with it. With regard to component selection, it is up to each reader to choose branded and high quality or less quality equivalents. However, I think that with a commercially available device, a functional and reliable amplifier can be built, the sound of which will sound very clearly and undisturbed even at higher volumes. At a relatively low cost, you can build an amplifier with dynamic sound, also applicable to studio conditions.

The design of the original Lynx 3 Amplifier was also supported by a well-known Czech designer of audio technique, Mr. Pavel Dudek. Here, the presented and edited version has been awarded with the SVOČ (Student Scientific Expertise) competition in the section "Electronics".

Background for construction

On this page you can download the Amateur Amplifier building of Baby of Lynx Amateur. It is quite possible that I will continue the project in the future and the amplifier will be modified, and to create a new version of the amplifier based on the structure published here. The building materials are freely available! FOR NON-COMMERCIAL USE !. If you are interested in "professional" PCBs as in the following photographs (coated holes, non-soldering mask) you can agree on their production by mail: hifiweb@seznam.cz. The PCB price will depend on the number of items requested and the total demand for PCB (max price approx. 300 CZK / piece).

Download for DIY

• Coopper side: bottom.pdf
• Component side: top.pdf
• Mounting drawing: assembly.pdf
• Component List: components.xls
• Gerber files: gerber.rar

(Non-commercial use only!)

Site : http://hifi.czweb.org