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Lectron JH50 unknown parts?
Lectron JH50 unknown parts?
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Old 30th December 2007, 05:17 PM   #1
astro_nut is offline astro_nut  Hong Kong
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Join Date: Jun 2004
Location: Hong Kong
Default Lectron JH50 unknown parts?


I am trying to rebuild the board that provides a regulated 400V supply. This board is placed on top of the amp chassis next to the main power transformer and is usually not visible since it is covered by the large rectangular stainless cover with nameplate.

As you can see from the picture all the transistors have the names scraped off as well as that of the microchip. Does anyone know the part numbers for these components? I would appreciate any help or has anyone built an alternative regulator board.

Thank you.
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Old 30th December 2007, 09:36 PM   #2
Roar Malmin is offline Roar Malmin  Norway
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Join Date: Jul 2006
I have a service manual. Please email me. I also have two of these amps on my bench for repair, so I should be able to provide some help/guidance for you.

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