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Post pics of your builds.... - Page 641

post #9601 of 9604

Thanks but to be honnest, there is very little in there I'd call my own. It's just a matter of putting together datasheets' suggested designs and reading what is suggested by more knowledgeable persons.

 

The tricky thing is that it's very hard to properly test such a DAC. Ok, there's no offset nor oscillation (that I can see with a 20Mhz scope) but, since it's better than my soundcard ADC (an aureon sky), I've no idea of actual performances, except it's better than 90db SNR and 0.0026%thd at 1K.

post #9602 of 9604

This is more a "work in progress" than a completed build, but I'm getting closer. My Bijou has been in a "temporary" case for about six months as I decide on a case design and find the materials for its permanent home. The chassis is going to be of Alaskan Yellow Cedar, with jade-green leather on the top-plates, and copper heat sinks for the FETs.
I haven't yet decided on the knobs. I'm leaning towards leather-wrapped wood, but that means finding someone to turn some of my cedar for me (I don't own a lathe). I'm also want to reshape the profile of these copper heat sinks to be domed so they better matches the tops of the tubes. I need to find a way to support the pins so I can file and grind without mangling them.

 

post #9603 of 9604
Quote:
Originally Posted by Johnthurston View Post
 

My Bijou has been in a "temporary" case for about six months as I decide on a case design and find the materials for its permanent home.

 

Nothing's more permanent than a temporary solution.

post #9604 of 9604
Quote:
Originally Posted by Johnthurston View Post
 

 I need to find a way to support the pins so I can file and grind without mangling them.

Ice? It would probably put too much of a limitation on working time to be useful, but clean up would be a breeze.

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