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-   -   L-20 200w class b amp (http://www.diyaudio.com/forums/solid-state/156392-l-20-200w-class-b-amp.html)

ljm_ljm 8th December 2009 01:47 AM

L-20 200w class b amp
 
1 Attachment(s)
this is my design amp.
it is 200W OUTPUT。
voltage + -70V
:D

djk 10th December 2009 10:41 AM

Your effort looks very nice.

How hard are you going to use it?

Adcom had good success with their 60W rated 535 and 100W rated 545. They used the same circuit board for both models, just more heatsink and more outputs. The 535 had a 3.5" tall heatsink and two pair of plastic outputs. The 545 had a 5.25" tall heatsink and three pair of plastic outputs.

The 200W rated 555 went to four pair of metal cased outputs with 7" tall heatsinks.

ljm_ljm 10th December 2009 01:07 PM

yes 。
i will use it .
this is a CLASS b amp.itis efficiency is 65%.

yangbaibing 10th December 2009 02:17 PM

You should provide more infomation about the L20.Such as 18V/us and so on.

ljm_ljm 3rd October 2011 02:21 PM

Please note that only L20 blue is correct. The original provider.

It will indicate the DESIG LJM.

Homl 3rd October 2011 03:04 PM

Interesting amp.
Can you please post a schematic of the latest version of the L20? Thanks. :)


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