Head-Fi.org › Forums › Misc.-Category Forums › DIY (Do-It-Yourself) Discussions › Post pics of your builds....
New Posts  All Forums:Forum Nav:

Post pics of your builds.... - Page 614

post #9196 of 9604

Great!!! Wish you nice time to hear...

post #9197 of 9604

Paint + removable jack + comfort mod on my ATH AD700s

http://imgur.com/a/v6SWK

post #9198 of 9604
Quote:
Originally Posted by funch View Post

Absolutely amazingly gorgeous amp. So how does it sound?

That's like asking a dad how good a baseball player his son is. biggrin.gif

 

I am very proud.  It turned out far beyond my expectations.  I'm a builder that knows a tiny bit about circuits but knows how to solder.

I used Tom Christiansen's boards and component list and took it from there.  I upgraded to some fancy Mundorf caps and hand made resistors.

Used some silver wire for the input and output leads.

 

I took it to the Head-Fi LA meet last saturday.  I finished the build friday at 2PM  rather than tell you my thoughts, I'll give you some posts from the LA Meet appreciation thread.

I am truly humbled.

 

DG 300B comment #1

DG 300B comment #2

 

I probably posted this before.  Here is the Build Thread


Edited by sceleratus - 7/26/13 at 11:37am
post #9199 of 9604

nice mrvk


Edited by glunteer - 7/29/13 at 11:04am
post #9200 of 9604
Quote:
Originally Posted by sceleratus View Post

Finished

 

 

 

 

 

 

 

Ok, you win the looks contest.....but can you win the sound contest?

 

My stuff (mainly my outboard power supply looks like crap). Sorry, but all I had was a miter saw, a drill, and a screw driver. AND the saw is horribly uncalibrated, so I pretty much gave up on my power supply. My neighbor salvaged my main chassis. 

 

My friend completely designed this amp from the ground up. So all I get to take credit for is owning it and building the chassis.......sort of. tongue.gif

 

But it is 2 350bs with some 6SL7 tubes and a nice mullard tube for the rectifier. All the important capacitors are paper in oil, and all the resistors are allen bradley. The hookup wire is cardas and western electric. 

 

Top that Mr. 300B tongue.gif (in all seriousness, your amp does look gorgeous) 

 

 

 

post #9201 of 9604
Quote:
Originally Posted by Tjj226 Angel View Post

 

 

Ok, you win the looks contest.....but can you win the sound contest?

 

My stuff (mainly my outboard power supply looks like crap). Sorry, but all I had was a miter saw, a drill, and a screw driver. AND the saw is horribly uncalibrated, so I pretty much gave up on my power supply. My neighbor salvaged my main chassis. 

 

My friend completely designed this amp from the ground up. So all I get to take credit for is owning it and building the chassis.......sort of. tongue.gif

 

But it is 2 350bs with some 6SL7 tubes and a nice mullard tube for the rectifier. All the important capacitors are paper in oil, and all the resistors are allen bradley. The hookup wire is cardas and western electric. 

 

Top that Mr. 300B tongue.gif (in all seriousness, your amp does look gorgeous) 

 

 

 

Hey !

I like yours.  It's .... "earthy"

 

I sold my woodworking stuff years ago so the enclosure was done professionally.  I'll take credit for the design, done in illustrator, but you win because it's "hands on".   I did sand and finish.

 

Top panel.  I win because I got a panel out of bronze, cut by a water jet using my AI files and professionally polished for $300.

 

Did I read 350 pounds correctly.

 

I have 15 lbs 9 + 9 in OPT's

 

Design.  Even.  I didn't design or etch the boards.

Electronics build.  6 boards with a goodly number of 0805 SMD components.  ????

Hand made components.  Me too.  Texas Component hand made resistors and caps by Mundorf and Solen.  I had some Jupiter beeswax but yanked them.

 

Spending Stupid Money category.  I win.

 

Sound quality.  As noted above, I got some very nice reviews from some credible folks at the LA Meet.  ???

Sound quality is a tie because no dad is going to say their kid has warts.

 

Dumb Luck:  I win.

post #9202 of 9604

Obligatory Chassis Wiring Photo.

 

 

Hand made resistors....   kinda cool

 

post #9203 of 9604

TJ226 Angel

 

It's Phreak'n Awesome !!!! 

 

EDIT:

 

Sitting wearing cans with a**** eat'n grin..... while the tubes are rock'n the sockets...........Priceless.

Can't nobody take that away ! L3000.gif


Edited by sceleratus - 7/26/13 at 9:41pm
post #9204 of 9604

Oh I am sorry, I wrote a post earlier, but it looks like it never sent. 

 

The amp does not weigh 350 pounds (lbs). It uses the 350b tube and 2 6SL7s which I recently (as in yesterday) upgraded to 2 6SU7GTYs. 

post #9205 of 9604

Nothing at all wrong with that bad boy.  Your ears can't see it.

That said, it has to be a head banger amp.  In which case.  "IT LOOKS PERFECT"

post #9206 of 9604
Quote:
Originally Posted by sceleratus View Post

Nothing at all wrong with that bad boy.  Your ears can't see it.

That said, it has to be a head banger amp.  In which case.  "IT LOOKS PERFECT"

 

Actually it is more for relaxation at the moment. I have to get some better 350bs that are a tad bit faster sounding before any head banging starts happening. biggrin.gif. Fortunately my friend who built the amp is lending me some tubes....unfortunately I still have to buy decent ones for $$$ before the amp sounds it's best. Thanks for the encouragement. I will pass it along. It might be taboo to say this, but it was a 16 year old kid that designed this amp, and it sounds better than a LOT of stuff at the audio fest that is 10 times the amount. 

 

On a different note, I actually just heard your amp today (well...it's sort of quasi brother that someone else built). 

 

Very very nice bass, but I wanted to ask you if you are hearing any sharpness in the upper highs? I think this guy my not have done something right because every time I have heard something that used a 300b, it sounds supper rich. (well....with the exception of woo audio, but that is a different story all together). 

 

I do not see why your/this amp should have a harsh high frequency, so I am wondering if he just bought crap tubes? Any thoughts that I could report back to the people at the audio fest tomorrow? 


Edited by Tjj226 Angel - 7/27/13 at 6:16pm
post #9207 of 9604
Quote:
Originally Posted by Tjj226 Angel View Post

 

Actually it is more for relaxation at the moment. I have to get some better 350bs that are a tad bit faster sounding before any head banging starts happening. biggrin.gif. Fortunately my friend who built the amp is lending me some tubes....unfortunately I still have to buy decent ones for $$$ before the amp sounds it's best. Thanks for the encouragement. I will pass it along. It might be taboo to say this, but it was a 16 year old kid that designed this amp, and it sounds better than a LOT of stuff at the audio fest that is 10 times the amount. 

 

 

16 yr old   AWESOME !

 

My highs are like butter.  All the tubey goodness yet great clarity and sibilance. 

However, Tom gave me a mod that allows me to use my collection of ECC88, 6922, 6DJ8, etc.  I do not use the 6N6P.

I have some snow noise that really is a non issue when the music is playing.  A bit during classical music.  This is the first implementation, that Tom knows, of the DG300B as a HP amp, so everything is under the microscope.  I'm looking at the feasibility of implementing a stepped attenuator and killing the pot.  It's a matter of fitting it so it doesn't hit a board.  

post #9208 of 9604

Sceleratus' amp has excellent smooth and extended highs. A major accomplishment  for a single-ended DHT amp. No problem there whatsoever.

post #9209 of 9604

sceleratus ...wow. 

 

Beautiful work brotha

post #9210 of 9604
Quote:
Originally Posted by FrankCooter View Post

Sceleratus' amp has excellent smooth and extended highs. A major accomplishment  for a single-ended DHT amp. No problem there whatsoever.

Gosh Frank,

I am am humbled.  Again

 

Thank you.  smile.gif

Quote:
Originally Posted by sachu View Post

sceleratus ...wow. 

 

Beautiful work brotha

Many thanks.

 

I'm just a guy that can solder.

 

I've been learning all about balanced XLR interfaces over the past couple of days.....

Jacked up the implementation of a volume pot trying to use it for XLR.   RCA Yes.  XLR No   Why?  Don't have a clue.

 

Since I now have a Gungnir I'm committed ( I should be) to XLR.  Looks like a stepped attenuator is in my future.  If it fits.

All the gory details are in the build thread.

New Posts  All Forums:Forum Nav:
  Return Home
Head-Fi.org › Forums › Misc.-Category Forums › DIY (Do-It-Yourself) Discussions › Post pics of your builds....