Head-Fi.org › Forums › Misc.-Category Forums › DIY (Do-It-Yourself) Discussions › Eddie Current DIY amplifier "Monolith"
New Posts  All Forums:Forum Nav:

Eddie Current DIY amplifier "Monolith" - Page 9

post #121 of 170

Are you taking the voltage with the transformer loaded or unloaded? 

 

The voltage will be higher when there is no load on the transformer.

post #122 of 170

you have to look at the percentage regulation, and whether you are measuring rms or peak voltage at the secondary.  Are you measuring the voltage under load, or just by hooking up the transformer with nothing connected to the secondary?

post #123 of 170

It's measured with RMS and not under load.

post #124 of 170

With no load that would be normal.  The actual voltage depends on how much current the transformer can handle though. 

post #125 of 170

Last time I tried to hook up to some load R8 started to make BBQ.

post #126 of 170
Quote:
Originally Posted by mcluxun View Post
 

Last time I tried to hook up to some load R8 started to make BBQ.

 

because you probably hooked it up wrong, or your circuit was assembled incorrectly.

post #127 of 170

I was contenplating building this or a Beta 22.  I will be powering LCD3's with it. Has anyone done a comparison by any chance between the two amps.  What is turning me toward the B22 more is the discrete design vs using opamps.  

post #128 of 170

I would avoid the B22 for the LCD3's or any other ortho. PS. I own a B22.

post #129 of 170
Quote:
Originally Posted by DefQon View Post
 

I would avoid the B22 for the LCD3's or any other ortho. PS. I own a B22.

 

May I ask why?

post #130 of 170

Sounds crap off the B22. B22 + high z headphones is a better match. Although it isn't a problem with the amp delivering inadequate loads just that it doesn't sound delivering it.

post #131 of 170

Has no one finished the monolith, i wanna see pictures of it :)

post #132 of 170

I finished everything but putting it in a chassis. I lost interest as I didn't keep any balanced dynamic headphones and had a bunch of other projects.  I've recently grabbed some so I'll have to dig the boards back out and put them into a case.  I've still got one to use that I had originally marked for the project.

post #133 of 170
Debating between this and crack. I have T1's so I know crack would be better match, and I do want an OTL amp, but this just has a certain appeal. How much does everything on BOM cost, including boards. I can do the casework at school for free so that's not an issue. smily_headphones1.gif

So if anyone has total pricing please post biggrin.gif
post #134 of 170

$200-250 depending on where you source your parts. Think Chris's bom rounded up to about tad bit below $200.

post #135 of 170
Quote:
Originally Posted by DutchGFX View Post

Debating between this and crack. I have T1's so I know crack would be better match, and I do want an OTL amp, but this just has a certain appeal. How much does everything on BOM cost, including boards. I can do the casework at school for free so that's not an issue. smily_headphones1.gif

So if anyone has total pricing please post biggrin.gif

I know you know this, but the Crack is a perfect match to the T1s (even better with the HD800s, but I won't get into the T1 vs. HD800 comparison), whereas the DIY community doesn't really think much of the "Monolith", which was almost created as something of a practical joke. Build what you want, of course, but...

rolleyes.gif
New Posts  All Forums:Forum Nav:
  Return Home
Head-Fi.org › Forums › Misc.-Category Forums › DIY (Do-It-Yourself) Discussions › Eddie Current DIY amplifier "Monolith"