Quote:
Originally Posted by ECC8100
Fantastische Arbeit, Darius. entschuldigen Sie bitte mein Deutsch.
Hi Darius, I hope you will excuse my opening in my poor German (my Grandmother was German, so I hope you will excuse me!)
Very impressive 
And you wound all of the wound components yourself. 
Looking at the scope shots, looks like mainly third harmonic distortion?
What are the HF and LF breakpoints?
How does it respond to square waves?
Impressive lab you have there, any chance of some pics, please? (In another thread to keep the mods happy!) |
Good morning and thanks ECC8100.
I have a transformer factory in my neighbourhood, so I can get all components and I can wind what I want.
"Looking at the scope shots, looks like mainly third harmonic distortion?"
I don't think so.
Please note there is no negative feedback of course.
The high frequency breakpoint (-3dB) is at 30KHz.
I set the low frequency breakpoint to 14Hz with the 22nF 510KOhms at the g1 of the output triodelington. I want the low breakpoint multiplied by high breakpoint = 400000. At this 14Hz breakpoint the reactance of the transformer (1K3Ohms) is still higher than the output resistance of the triodelington (1KOhms). The output load resistance is 2KOhms.
Kind regards,
Darius