Post pics of your builds....

[dgardner]

Originally Posted by individual6891

Very impressive Dynamite amp! The thing is huge - what's the power consumption with those fets?

At idle, the top box throws a grand total of about 80W. Each output BJT idles at 85mA.

[amb]

doobooloo, you are the headphone amp meister. The way you just crank out one interesting amp after another never ceases to amaze me. Keep up the good work!

[__redruM]

Here's my pimeta in a Hammond J case. It just fit with 4 1000uf Caps and the panasonic pot.


Here it is with the cover on:

[n_maher]

redrum,

Well done! What input jacks are those? I've been looking for some smaller ones like that for a little side project I've got going.

[__redruM]

161-7300 from mouser. I've always used the mini plugs, to match my source and my headphones. Also they seem to take up less space than rca jacks or a 1/4" jack would.

[Nospam]

I finally got around to finding a free hosting service, so here are a few pics of my first amp. Unfortunately, I was rushing to finish it, so I don't have any pictures of the board by itself.

(click on the thumbnails for a larger picture)

Top view of the Penguin tin


View of the sides


Here's the inside


A closeup of the board


The other side


As I mentioned, I rushed the final stages of the build, because I wanted to finish it in time to give to a friend as a gift. She likes penguins, thus the choice of tin

Unfortunately, rushing anything means things usually don't go quite as planned. For instance, I only had the large thickness cutting wheel for my Dremel, so the board wasn't cut as cleanly as it could have been. Actually, it looked pretty ugly, and I did cut slightly into one of the traces

I also didn't have time to replace the switch wires with longer ones, so I simply routed them over the board. However, since I cut so much of the board away with the Dremel, I was still able to close the lid

The most interesting mistake was that I used the wrong resistor for the RLED; I didn't notice it until I had already cut the board and soldered it together. The blue LED is so bright, when the amp is turned on, you can use it as a flashlight If it bothers my friend enough, I figure her husband can take it apart and replace the resistor.

Overall, I had the most problems with the casework, since I really don't have a proper setup (vise, drill press, etc) to do a precise job. The soldering part (even the SMD stuff) was fairly straight-forward. I really with I had taken pictures of the board, because I'm actually quite proud of the soldering job. I even positioned the resistors with the values facing up in the same direction

Most importantly, it sounds great :580smile:

Anyway, next up is a Mint for myself, to replace my Go-Vibe (I need a higher gain for use in my car). Then, I plan to build a couple more to try out different op-amps and other options. I'll probably end up giving those away to family as gifts.

After that, I'll play around with a PIMETA or two (or more?), before I tackle the Dynahi :allteeth:

[Earwax]

Just another cmoy...

[headchange4u]

Where did you get the CMoy PCB?

[Earwax]

Made it.

I started with the Eagle layout file guzzler posted a few months ago. I enlarged it for the Solen input caps, and changed the pot to the alpha 16mm and added a couple more bypass caps. I etched it using the toner transfer method with supplies purchased from web-tronics.com

I finished off building the amp last night, it's powered from a 16V AC/DC wall wart (no batteries), RCA inputs, 1/4 inch output, small black metal case. I'll post pictures (not that the outside is anything special) once we get a nice sunny morning for good lighting again. The sound is very impressive for just a single opamp. Don't let anyone tell you a cmoy can't power HD600s well. :580smile:

[llmobll]

Mint:




Edit: Other side of the MInt Board.




Diamond Buffer (Still tweaking)





I'm super happy with the Mint, sounds awsome, far better than I thought.(AD8066 is a great amp)