New Millett Hybrid Maxed Amp
Jul 21, 2010 at 1:39 PM Post #6,183 of 6,727
Righto, moving right along. Here are some images of my recently built MOSFET Max as it sits right now. I might do some more casework later if I can come up with a design that I like, but for now the wife says I've spent enough time working on this thing :)
 

 

 

 
Jul 21, 2010 at 1:52 PM Post #6,184 of 6,727
Very nice, TBomb06!!  Another MOSFET-MAX lives.
biggrin.gif

 
Jul 21, 2010 at 10:03 PM Post #6,185 of 6,727
Sweet TBomb06.
 
Looks like a custom front panel. Give us a "full-frontal" please! I want to be able to read the lettering.  
 
Hellofa knob as well. No chance of accidental slippage with that baby. Is it lighted?
 
 
Jul 21, 2010 at 10:25 PM Post #6,186 of 6,727
Thanks guys!
 
Quote:
Sweet TBomb06.
 
Looks like a custom front panel. Give us a "full-frontal" please! I want to be able to read the lettering.  
 
Hellofa knob as well. No chance of accidental slippage with that baby. Is it lighted?
 


Haha yeah, it is a big knob. It was silver, but I painted it black (not a perfect finish, but good enough for me) and I drilled it for the LED and wired it to the center LED position on the board. It just says "Millett MAX" in the top left, then "Tube/Solid State Headphone Amplifier" in the bottom left, "Headphones" and "Volume" under the respective areas, although the knob is so big you can't really see where it says "Volume" unless you're looking from beneath the amp :) That's ok though, I know it's a volume knob :wink: I'll try and get some more pictures up later!
 
Jul 22, 2010 at 3:31 PM Post #6,187 of 6,727
 
TBomb06 - nice job. Hope you're enjoying yours as much as I am mine. I've been listening with
a pair of Grado 325is's, and am happy to report that what is said about the synergy with the
MOSFET-Max is true. The amp tames the aggressive brightness of the Grados, while still letting
the good stuff (clarity/dynamics) come through.
 
Well, it appears that my earlier report of my amp quitting was a bit premature. When it happened,
I was using my diyMod with an LOD cable and cap box that I had just built. Turns out that the
problem was with the LOD not latching properly in the iPod, causing a loose connection.
 
Jul 22, 2010 at 3:53 PM Post #6,188 of 6,727
Is there any room to back the board back from the front of case?
I was thinking I would have make a knob that the knob locking screw was on a small shoulder and was locked to shaft from the inside and you dont see the screw hole in the knob?
 
Looks like the board fits the case like a glove..
I guess it was designed to fit it and not much room for any mods?
 
I had plans on the knob I wuld have made to place a small drill spot and fill with paint and lay out a few other drill spots around as dial as a volume sale some think you can try...
 
IE: make a graphic in photoshop with layout holes and print it
Then use rubbing glue or tape to hold it to face plate and center punch holes form shaft loaction and have dots say ever 30º to mark volume level then center puch and drill shallow spots...
 
Jul 22, 2010 at 5:20 PM Post #6,189 of 6,727
There is an ~8" deep version of the Hammond case.  The stock BOM chassis is approximately 6" deep.  I don't have the part number, you'll have to look it up on Mouser by inputting the stock number then backing out to the catalog page to find the extended version's part number. 
 
 
Jul 22, 2010 at 7:10 PM Post #6,190 of 6,727
There are also vinyl graphic makers that use a plotter (large computer printer) with a cutting blade to make vinyl graphics.. These are cheap like maybe a a buck each, when you make a sheet full of many opposed to one..  They are like the custom graphics you see on car windows the last few years here in the south not sure if they are all over the USA
 
You can visit Sawmillcreek.com they have a grapic or engraving done with a Craftsman bench type or full blown Shop Bot like my friend Steve has..
Engravers Forum cnc engravers
Sign Design and Fabrication  Plotters
 
Dozens of guys that do this as a hobby and PT Job if any one is looking for engraving or to fancy up your face :)
 
Jul 22, 2010 at 10:23 PM Post #6,191 of 6,727


Quote:
Well, it appears that my earlier report of my amp quitting was a bit premature. When it happened,
I was using my diyMod with an LOD cable and cap box that I had just built. Turns out that the
problem was with the LOD not latching properly in the iPod, causing a loose connection.


That's actually GREAT news funch. Glad to hear it was something so trivial. 
 
I agree with your Grado comments, although I do not have the 325, it does wonders for the 225 and HF-2.
 
Things have calmed down enough on the home front so that it looks to be a grubdac weekend! Hope to have a fully "tricked out" MOSFET-MAX by Monday.
 
 
Jul 22, 2010 at 10:28 PM Post #6,192 of 6,727


Quote:
There is an ~8" deep version of the Hammond case.  The stock BOM chassis is approximately 6" deep.  I don't have the part number, you'll have to look it up on Mouser by inputting the stock number then backing out to the catalog page to find the extended version's part number. 
 

 
The 8 inch deep version(s):
 
http://www.mouser.com/Search/Refine.aspx?Keyword=546-1455T2201
 
Jul 22, 2010 at 10:30 PM Post #6,193 of 6,727


Quote:
 
The 8 inch deep version(s):
 
http://www.mouser.com/Search/Refine.aspx?Keyword=546-1455T2201

 
Thanks, but I wasn't going to spoon feed him, I was going to make him be the Y in DIY. 
tongue.gif

 
 
Jul 22, 2010 at 10:40 PM Post #6,194 of 6,727
Here is image of a dial I was thinking of...
 

 
I think the set screw holes would look better on the inside :)
 
 
 
You all are killing me with the kindness ...
 
 
I have no plans of building any amps right at this moment..
I am thinking about a Beta 22 but since SkyLab thinks its not a whole lot better than a Dark Voice and same price and no labor I just my buy Dark Voice amp but nothing in stone yet... 
 
I may make a rack and some of those pointy brass feet for my equipment  that they use on high end amps? Is the purpose? Or is it just to get air space under the case or some other high tech reason?
 
ENJOY
 

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