I agree, use a variac and bring the voltage up slowly. I think this is a good precaution after making any change to the esls. An error in panel rebuilding,...
One caveat. Circuits can behave unpredictably at low applied voltage. A Variac is a good workshop investment where the cost is justified but can be overloaded...
Well I am glad I didnt keep my fingers crosssed and assumed the worse or Id be really disappointed. The speakers dont match up and one is extremely low volumed...
Two illustrated revision-manuals for the ESL57, by Sheldon D. Stokes and Joerg Baar are downloadable (for free) on http://www.dadaelectronics.eu/downloads. You...
Thanks Stefaan, I actually downloaded them last night and after going thru them figured this wouldnt be too hard of a project, its nice having the sources on...
Ken,  Try change the amp out put between left + right speakers. If the charged is not completed, the lower sound level should still be at the same side...
while ordering the parts to rebuild the power supply and transformer I thought of a problem, Since these step up the voltages to the speakers, Im at a loss as...
all crossover resistors are 2 watt 22m 10m 2m2 power supply resistors are high voltage 0.5 watt 330k power suply resistor .6watt i obtained all from Radio...
I'd first approach they (like DaDa) who freely pre-informed. Components are often selected / upgraded for assured safety & performance and might be available...
I recently took my 63's to a guy in Exeter who runs a professional hifi repair business because the output from one speaker was about 30% of the other. I tried...
Hello Mark, Yes i had one with the same problem - (and i've also had an old ESL57 BTW.). Cheapest way is ofc. buy the broken components and solder them on....
Well Ray, I am totally lost now, I have found the 330k and 2.2m resistors for the power supply and they have been ordered. But, No where in any schematic do I...
hi the 22m and 10m rasistors are for pannel bias as per Sheldon Stokes .2m2 is 2.2m written this way to avoid decimal point errors. the crossover resistors...
You can get a full kit of parts from One Thing Audio which come complete with fitting instructions. I suggest you contact them. They are very help full and...
I had a similar problem about 3 years ago. Took them to Quads in Huntingdon. One had a failed capacitor, cost - about £1. Unfortunately service cost...
As I mentioned earlier Huntigdon serviced my ESL57's. The clamp-ciruits end one bass panel were replaced, the cost was around 500GBP. I would say service 10/10...
I think Stefan is right - and it is a standard cost - and I did pay a premium to have it done in the same day (as I didn't want to make a 150 mile 3 hour ...
Thanks to the two who have replied. I have spoken to the repairer today who has got the Parts from Quad and repaired at total cost £150 having rebuilt the...
Hi Mike, I don't know what just happened, except i made me look like a right pillock Anyway, don't worry about babies and the ESLs: there is no way that they...
I have a quad fm 1 and I am looking to replace the 8uf capacitor, when I replace it with a new cap how where should the - lead be connected to? On the old cap...
If a visiting child gets very interested in tearing your ESL-63a apart, inform their parents that they have 4000 Volts inside and they will immediately take...
During a listening session with some friends a sudden distortion noise arose from one of my ESL63. From that moment I couldn't find the cause of that noise, I...
Hello, It sounds to me like the spark detector kicked in. This shortens the input for a couple of seconds causing great distortion. This can happen from a...
Hi, I and a colleague made an investment in two sets of Quad 33/303 amplifiers. Both used for many years and badly in need of service. We bought four sets of...
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