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Introduction

I was more than anxious to let you know about the most ectic experience I have taken. The idea about building my ESL fascinated me for a long time but I guess the fear of faillure controled the desire of taken any action. Finally last summer I decided to order the materials after browsing the complete ESL circuit for months. This was my first experience, consequently, apart from the principles involved in the construction I wouldn't know what were the true.

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Specifications

Type: Full range perforated steel ESL
Initial designer: John Mateus with the help of Rob MacKinlay
Dimensions: 36x12 in and24x12 in, on top of each other
ESL size: 60x12 inches
HV Power supply: +- 5 KVolts.
Audio transformer: 1:50 output transformers from an old tube amplifier
Amplifier power: 2 x 30 watts, class A, SS
Sensitivity:
Freq. response:

Details about building the ESL

Needless to say that I made a lot of mistakes and wasted a lot of materials including membrame and glue and... patience. One word of thankful aknolegement to ROB MACKINLAY, of ER Audio who helped me a lot with the construction of my first pair of ESL. Without him I don't think I would be able to acomplish the task. I also ordered most of the parts from him, the only exception was the perforated stators for which I paid a lot of money (Ithink).

Andrew Radford's picture

This a picture taken from Andrew Radford which has the same type of stators

As can be seen in the picture this was a very simple design (I didn't want to complicate the frames), the frames were solid oak stock with an indentation inside to acommodate the thikness of the panels. The base is also solid oak. The electronics are in a separate box and contains the HV power supply and the two transformers. But....now that I get my panels working successfully,I'm thinking already in building another pair this time a la QUAD shaped because my music room has certain limitations in one of the walls. An attic with a slanted side... This time I was able to buy perferated steel from another company that charged me less than a half of the cost of the frist one.

And that's about it, I suppose. John Mateus at jmateus@nac.net