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Millett "Starving Student" hybrid amp - Page 155

post #2311 of 6115
Quote:
Originally Posted by tomb View Post
EDIT3: A standard Millett MAX's sockets stick about 0.54" above the surface of the PCB, but this will vary depending on how hard you squish down the socket when you solder it (I squish very hard.) Accounting for the thickness of the plate, about 0.21" of the socket will be above the surface of the top plate (using the Hammond "L" case). Note that the typical PCB 7-pin ceramic socket is 0.725" in diameter. The typical 19J6 tube is about 0.715" in diameter.

Make the hole 3/4".
Got it!

thanks tomb.

zk
post #2312 of 6115
Quote:
Originally Posted by tomb View Post
A quality p2p build compared to a quality through-hole PCB will sound the same, period. Also, I have no doubt that the Whiplash versions are quality builds.

The same is not true for digital circuits (DACs, SMD, etc.), but that doesn't apply here.
Point to point is so much more fun to do though. I don't get anywhere near the same sense of accomplishment from just stuffing a PCB.
post #2313 of 6115
Quote:
Originally Posted by Yaka View Post
oldking used them to build is, i think he posted pics of a few of his builds earlier in the thread

Millett "Starving Student" hybrid headphone amplifier on Flickr - Photo Sharing! he has pics on his flickr page that shows the connector attached to the mosfets

Search for " .100 molex " and you can find them. You also need the pins which insert into the connector. I think I used "k.k." series.

Or you can just use fan connectors if you have them.

I wanted to have disconnects at the mosfets to allow me to take the thing apart... they work great.
post #2314 of 6115
Quote:
Originally Posted by dsavitsk View Post
<snip>
I guess that's a note to me.
Ha - yes! Consider yourself notified.
post #2315 of 6115
Do you guys have any ideas of who will be supplying boards?

*I have family members and friends who really want to get their hands on one as their second DIY projects (helped them do a CMoy one saturday and supplied the parts as an Xmas gift).*

Boards will be between $15 and 20 I am guessing?
post #2316 of 6115
Quote:
Originally Posted by -=Germania=- View Post
Do you guys have any ideas of who will be supplying boards?

*I have family members and friends who really want to get their hands on one as their second DIY projects (helped them do a CMoy one saturday and supplied the parts as an Xmas gift).*

Boards will be between $15 and 20 I am guessing?
I haven't discussed it specifically with Nate yet, but Dsavitsk and I agree that beezar.com is the way to handle it. I'm going to set it up so that tubes are sold in tested, matched pairs only with the PCB. IOW, if you want tubes, you'll have to purchase the PCB, too. You'll be able to purchase the PCB's separately, but not the tubes. This seems the fairest way to do it and the best way to make certain that most people will get a shot at tubes if they want to build the PCB. Unlike the tubes - if we run out of PCB's, we can always order more.

As far as pricing, I would expect the boards to be 1/2 what you are guessing. It's been $15 for the prototypes, but prototypes are always more expensive.
post #2317 of 6115
Quote:
Originally Posted by -=Germania=- View Post
Do you guys have any ideas of who will be supplying boards?
beezar.com

Quote:
Originally Posted by -=Germania=- View Post
Boards will be between $15 and 20 I am guessing?
Less, I think.
post #2318 of 6115
Quote:
Originally Posted by Fitz View Post
Point to point is so much more fun to do though. I don't get anywhere near the same sense of accomplishment from just stuffing a PCB.
+1

I don't think I'll ever go back to PCB's! For me, it's the problem solving and interpretation involved that is so much fun.

Before my SS I was really interested in buying an Aikido kit. Now it's going to have to be bus-bars and bakelite all the way!

edit: not to crap on anyone's fun! i actually have done a lot of PCB projects before trying PTP.
post #2319 of 6115
Quote:
Originally Posted by Fitz View Post
Point to point is so much more fun to do though. I don't get anywhere near the same sense of accomplishment from just stuffing a PCB.
PCBs will be great for the less confident ones who want to explore this nice little amp, but P2P is what made it particularly compelling for me. I learned a lot building mine and had a real sense of accomplishment when I first hit the switch and music came out.
post #2320 of 6115
But PCB's just look so much neater!
post #2321 of 6115
Quote:
Originally Posted by tomb View Post
A quality p2p build compared to a quality through-hole PCB will sound the same, period. Also, I have no doubt that the Whiplash versions are quality builds.

The same is not true for digital circuits (DACs, SMD, etc.), but that doesn't apply here.

Thanks for your response.

Quote:
Originally Posted by iareConfusE View Post
But PCB's just look so much neater!
Yes but its more a matter of personal taste than anything else -IMHO-.
post #2322 of 6115
Oh one more question, what are the dimensions of the PCB?
width x length?
post #2323 of 6115
Quote:
Originally Posted by iareConfusE View Post
Oh one more question, what are the dimensions of the PCB?
width x length?
Board Dimensions: 3.87" wide x 3.14" (98mm wide x 80mm),
Board Specs: 2oz copper (production version) on an 0.062" (1.6mm) FR4 dielectric
post #2324 of 6115
Wow, that is great!

That is also a really nice service to the community.

Is there a specific Hammond or other enclosure that you guys have in mind?

It would be nice if we could get pre-drilled cases to take care of the other intimidating part - casework.
The MiniMax looks fantastic and there could definitly be interest for something like this.

PTP can be really intimidating for people, but it is extremely easy to change things or parts if you want to later something harder to do with a PCB.

You just made my dad extremely happy!
post #2325 of 6115
Quote:
Originally Posted by -=Germania=- View Post
Wow, that is great!

That is also a really nice service to the community.

Is there a specific Hammond or other enclosure that you guys have in mind?

It would be nice if we could get pre-drilled cases to take care of the other intimidating part - casework.
The MiniMax looks fantastic and there could definitly be interest for something like this.

PTP can be really intimidating for people, but it is extremely easy to change things or parts if you want to later something harder to do with a PCB.

You just made my dad extremely happy!
Have a look at: DIYForums.org &bull; View topic - Starving Student Millett Hybrid PCB - designed by Dsavitsk
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