หัวข้อ: New Pre Amp Kondo M7 Clone

[คุณหมีน้อย]

good job       

[Frank R.]

Today, I have tested JJ Electronic 12AY7 / 6072 tubes.
I have to burn in the tubes first, than I can compare with the Electro Harmonix 12AY7 tubes, I have used for some time now.
The JJ looks optical an ECC88 tube.

[Diy Project Seeker ©]

Very nice!

[Frank R.]

Here the white front.

[Frank R.]

I made 2 more fronts.


One front in white, and a light blue color one.


I think, light blue looks best.

[Diy Project Seeker ©]

Very nice! 

[ออดิโอแมน]

in generally i blue color.
in this case i other.
may be i   bright blue color.

[Frank R.]

Here my new blue acrylic glass front.


Let me know how you the blue color.

[paputzaa]

Very beautiful and nice !!!
It gave me to have the inner power to refurbish my old preamplifier. 

[Diy Project Seeker ©]

Very nice!

[ออดิโอแมน]

งาม = beautiful
 

[Frank R.]

Some more pictures.

[Frank R.]

Here my latest project.
My new 12AY7A pre amplifier.
I was inspired from the Kondo M7 pre amplifier.
Separate HT power supply for each channel.
DC heating.
Short signal path with relay switching.
Very nice sounding, open and wide sound stage.