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Have to fix my Quad ESL 57
Have to fix my Quad ESL 57
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Old 15th October 2019, 02:32 AM   #121
legopart is offline legopart
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First look
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Old 15th October 2019, 10:45 AM   #122
legopart is offline legopart
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Find another theoretical problem...
The distance between the pins is actually high because there is a top/high level voltage there.
And my capacitors legs that connected over the air made the distance shorter by half.
Though about: put some hot glue, hit shrink tube or silicone between the elements, to avoid arcs.

do silicon is ok for isulation?

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Last edited by legopart; 15th October 2019 at 10:48 AM.
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Old 15th October 2019, 07:48 PM   #123
legopart is offline legopart
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Have to clean the floor now
do only basic cheap paint
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Broke one resistor.
its made of coal
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Last edited by legopart; 15th October 2019 at 07:52 PM.
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Old 16th October 2019, 07:44 PM   #124
legopart is offline legopart
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Found this type of fuse before tweeters,
in parallel to this fuse connected 50ohm

What do you think about trying this method?
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Still have this cheap types, (the coil is: with core 4.0mH and without 1.0mH) =D
60W Speakers 2 Way Audio Frequency Divider Loudspeaker 2 Unit Crossover Filters | eBayClick the image to open in full size.

Some crossover boards using real glass fuse
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really forgot about the crossover methods.
Can some one help me please.

Which fuse to use on this board phase (+)
the (-) will get 2.2ohm 10W additional capacitor.
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Old 17th October 2019, 05:19 PM   #125
legopart is offline legopart
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Lost my camera memory card
so only phone photos

and copy past the second side.
matched capacitors/resistors choose, replace the solder with Cardars
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recoate EHT
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Spent must of the dielectric spray (that for the panels I found it useless)
on the transformer
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re soldered and still not finish, need to mess with EHT and put some fuse one the phase.

I will use only my required voltage (240v) and isolate the rest


I plan to use 30mA fuse on the entering level. if it will blow then I will use 1A

Last edited by legopart; 17th October 2019 at 05:32 PM.
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Old 17th October 2019, 05:27 PM   #126
tschrama is offline tschrama  Netherlands
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keep up the good work
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Servicing guitar and Bass amp, giving amp building workshops at my small atelier www.sgravenmade.com
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Old 17th October 2019, 06:11 PM   #127
clog is offline clog  Netherlands
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In my opnion this is a very brave attempt to repair the (almost) unrepairable. I wish you lots of success !
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Old Today, 04:24 PM   #128
Nemeske is offline Nemeske  Hungary
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I subscribed to your topic!

If I might suggest, you should buy a pair of panels those salvaged from a working speaker, maybe this one.

This seller usually put up some QUAD panels and parts for sale for reasonable price. If you are lucky (as I were) you can score some undamaged treble panels from OTA for dirt cheap.
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