71A Direct Heat Triode Single End Class A Amplifier - Page 4

Musik007 · 24th July 2010, 02:11 PM

The 71A amplifier was done.

im ming · 27th July 2010, 02:02 PM

ur original version is more pretty, however i need to keep away from children.
good job, i am happy for owning this amp.
0.8w output is more than i need

very nice sound with my 98db full range speaker.

Musik007 · 27th July 2010, 04:54 PM

Hello ming,

Thank you very much for selection of my amplifier and nice comments. The circuits of the original version and this new one are same. We upgraded the transformers of the new version and can be seen in the previous page. All the transformers were made in Hong Kong. Furthermore, we used German M-cap Supreme capacitors in the coupling stage between 6SL7 and 71A. Transparence and resolution can be improved. The CMC tube sockets keep good contact with foot pins and are very easy to use.

Cheers!

Tony.

Quote:

Originally Posted by im ming

ur original version is more pretty, however i need to keep away from children.
good job, i am happy for owning this amp.
0.8w output is more than i need

very nice sound with my 98db full range speaker.

Musik007 · 3rd August 2010, 04:40 PM

This is the heart of the 71A single end amp. Thomas did it well.

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27th July 2010, 02:02 PM	#32
im ming diyAudio Member Join Date: May 2010	ur original version is more pretty, however i need to keep away from children. good job, i am happy for owning this amp. 0.8w output is more than i need very nice sound with my 98db full range speaker.