Post pics of your builds.... - Page 75 - Head-Fi: Covering Headphones, Earphones and Portable Audio

mrdon · 10-15-2005, 11:16 AM

Still have a few screws to put here and there but here's my MJ amp all boxed up with custom oak and bird's eye maple case with black old school bakelite ham radio knob. Parts consist of Nichicon FG Caps, Nichicon VX Caps, Reliable PPMFXCaps, Cornell Dubilier Caps, UF4007 Diodes, Holco Resistors, Kiwame Carbon Film Resistor, ceramic tube sockets, Amperex (HP version) 6dj8's, Alps Pot, and Allied 6K49VG Transformer (Rebadged Hammond). This was a real challenge for me and I enjoyed every minute of construction. The end results sounds just spectactular. For DIY, this amp is highly recommended.

amb · 10-15-2005, 11:39 AM

mrdon, gorgeous wood finish and the knob is way cool. Congrats!

Edwood · 10-15-2005, 11:46 AM

LOL, is the pot that hard to turn that you need a hand crank?

-Ed

rjkdivin · 10-15-2005, 04:52 PM

mrdon,

That is a great implementation....very original. You might consider a retro looking power level meter in place of the pilot LED.....just a thought....it looks great the way it is.

98venom · 10-15-2005, 05:48 PM

Now that is a conversation piece. Awesome craftsmanship.....

Oink1 · 10-16-2005, 12:30 AM

That volume knob looks like a car seat back adjuster!

Nice work

darkisz · 10-16-2005, 12:49 AM

That is quite a classy casing job, mrdon. It puts my amp to shame.

However, here's some pic of my Pimenta/Tread in a hammond case:

Inside:

Sounds good, too

98venom · 10-16-2005, 01:21 AM

Originally Posted by darkisz

However, here's some pic of my Pimenta/Tread in a hammond case:

I need to try stacking the buffers on my pimeta to hear how it changes the sound......

meat01 · 10-16-2005, 01:26 AM

Nisbeth · 10-18-2005, 03:55 PM

I have now completed two versions of the updated Millet Hybrid headphone amplifier.

I call them the "Blue" and the "Red" amplifier. This has nothing to do with the colour of the enclosure, but rather with the colour of the components inside (should be evident from the pictures below). The Blue amplifier uses Panasonic FC and Rifa MKP capacitors whereas the Red uses Elna Cerafine and Wima MKPs. The component values are the same, so these two amplifiers provide a good platform for testing the sonic differences between components.

Apart from the slight component differneces, the only real difference is that the Blue amp sports a set of pre-amp outputs. I've gotten excellent results using the Blue amplifier as a preamp for my Class-D poweramps.

Overall I am very happy with these

PCBs before they were cased up:

"Blue" amp

"Red" amp

/U.