LD1014D Id-Vds-Vgs Curve

[Zen Mod]

A distortion waveform would be informative.

aha!

gigglywiggly, again

 

[wwwtttwww]

maybe this is the front end spectral signature?
have you tried the output stage without gain stage?

Only the power stage without FE

 

[lydlaug]

Hi,
Any progress in this project? Did you find anything suspicious?
It seems very promising to me and I hope you`re able to find a solution.
Regards

 

[marconi118]

Yes me too interested in this project.
Really strange the H3 dominant. Only the bias network differs it shouldn't change the harmonic signature of the amp

 

[Adams_Leo]

really good project.thanks for sharing

 

[Adams_Leo]

A distortion waveform would be informative.

Dear Mr. Pass,would you please share how to get the distortion waveform?I saw this always in your articles,but do not know how to check it. is there any special device to support it?

 

[Nelson Pass]

It helps a lot if you have a distortion analyzer. An analyzer would allow you to display the distortion
waveform on an oscilloscope and with today's scopes you can also capture that to a digital image.

Even an old HP334 will give you this, and they start at $300 on ebay, although they might need a
little work....

 

[Adams_Leo]

thank you sir,I have AP ATS2,let me study how to do it

 

[Adams_Leo]

I am not luky,still do not get.the distortion waveform yet