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Old 16th January 2011, 12:44 AM   #31
Adams_Leo is offline Adams_Leo  China
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Join Date: Apr 2003
Location: Chengdu
Dear Mr Pass,
I really appreciate that you shared this amplifier design,I have built the SOZ with 10w output four years ago.Right now,I am looking for your new amplifier.I guess this one is the best choice. I have two idea to modify this amplifier.I expect you can take a few of you time have a review and give your suggestion.

1. May we use a single-end output transformer to replace the R2 and remove the output capacitor?If we can change this,what primary impedance of the output transformer should be the best to match this amplifier? Not sure whether impact the amplifier performance?

2. May I use the SJEP120R100 to replace the power MOSFET?I guess the distortion will be reduced.

I am expecting your reply.You help will be great appreciated.

Regards.
Leo
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Old 16th January 2011, 01:00 AM   #32
ra7 is offline ra7  United States
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De-Lite Amplifier
There is an article in Linear Audio Volume One which deals exactly with the questions you have posted. There is a schematic and everything.
Linear Audio | your tech audio resource
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Old 2nd July 2011, 03:42 AM   #33
Ant01 is offline Ant01  Australia
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Location: Brisbane Australia
Default 240v power?

Hi i am living in australia and im quite keen to build the amp in this article-is there anything that needs to be changed in the design to run on 240 volts AC and how many watts rms does it end up putting out? Im very new at building this sort of thing so any advice would be appreciated
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Old 23rd July 2011, 05:02 PM   #34
KrammeAcoustics is offline KrammeAcoustics  Denmark
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Newest group buy thread ( R100 )

http://www.diyaudio.com/forums/group...group-buy.html
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Old 25th August 2011, 04:25 PM   #35
vdi_nenna is offline vdi_nenna  United States
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Isn't grounding the output (to protect the speaker) a short-circuit?
Why is it different in this case? Thanks. Vince
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Old 3rd June 2012, 09:37 PM   #36
yehan is offline yehan  Philippines
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What is the Value of c2, c3, c4, and the number of available mosfets? And the voltage of the incandecent light? Thanks
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Old 8th February 2015, 02:56 PM   #37
ct1agi is offline ct1agi  Portugal
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A cheap alternative to bulbs...
A toaster element heater

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Old 3rd July 2015, 11:13 PM   #38
caligulaminus is offline caligulaminus  India
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Default feedback

THD should be lower, if we use negative feedback. I've built this amplifier, but with negative feedback and lower voltage (12v), and it sounds great
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Old 14th November 2015, 01:37 AM   #39
KrammeAcoustics is offline KrammeAcoustics  Denmark
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Here's a must read article , to understand how Depletion mode MosFet's work.
An introduction to Depletion-mode MOSFETs By Linden Harrison
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Old 31st December 2017, 06:11 PM   #40
wengtech is offline wengtech
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Join Date: Feb 2012
hello Mr.Pass,
i am interested to build de-lite with IXTH6N50D2 at 100vdc 2.2A
however at the articles mr.pass said there is an improvements offered by
power supply filter and regulator circuits as shown in Zen Variations #3
which will reduce noise and add more stability.

is this how we connect altogether?

and also for C1 and C2 how about if using 2x 47uf/250v like tube amp does, will it deliver more speed?

Happy New Year all...
Attached Images
File Type: png de lite with zen regulator.png (74.6 KB, 37 views)

Last edited by wengtech; 31st December 2017 at 06:17 PM.
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