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-   -   A basic chipamp in a not so basic case. (http://www.diyaudio.com/forums/chip-amps/63035-basic-chipamp-not-so-basic-case.html)

waltson 23rd August 2005 07:39 PM

A basic chipamp in a not so basic case.
 
This is a regular chipamp.com based lm3875 amplifier, featuring a 300VA trafo and an Alps 10k log pot.

The case is made of thermally modified aspen and treated with parafin oil. The knob is scratch built from aluminium tube, it has a tiny red led in the front and is polished with car wax. There's a ball bearing in the shaft to ensure a smooth operation.

I guess everyone knows that these kind of amps sound pretty nice, so there's no point in telling, that this amp too sounds pretty nice. :bored:

Here's some pictures.

Inside:
http://users.tkk.fi/u/hsonnine/kuvia...ge01_small.jpg

The knob:
http://users.tkk.fi/u/hsonnine/kuvia...ge02_small.jpg

From the back (sorry about the lousy quality):
http://users.tkk.fi/u/hsonnine/kuvia...ge03_small.jpg

Full frontal:
http://users.tkk.fi/u/hsonnine/kuvia...ge04_small.jpg

Corner detail:
http://users.tkk.fi/u/hsonnine/kuvia...ge05_small.jpg

whatsnext 23rd August 2005 07:44 PM

This is probably a dumb question but is there another switch someplace to change sources or is this not an integrated? Good looking amp.
John........

waltson 23rd August 2005 07:48 PM

Quote:

Originally posted by whatsnext
This is probably a dumb question but is there another switch someplace to change sources or is this not an integrated? Good looking amp.
John........

Nope, there's no switch yet, because I haven't figured a cool way to implement it without ruining the minimalistic front plate. The two extra pairs of rca's are just decoration at this moment.

Steve Eddy 23rd August 2005 07:48 PM

Sweeeeeeeet!:nod:

Though why not make the top cover of wood as well?

se

waltson 23rd August 2005 07:51 PM

Quote:

Originally posted by Steve Eddy
Sweeeeeeeet!:nod:

Though why not make the top cover of wood as well?

se

Why not. But I wanted to kind of mix classic wooden structure with sophisticated aluminium.

Steve Eddy 23rd August 2005 07:51 PM

Quote:

Originally posted by waltson
Nope, there's no switch yet, because I haven't figured a cool way to implement it without ruining the minimalistic front plate. The two extra pairs of rca's are just decoration at this moment.
Who needs a switch? How frequenty are you changing sources anyway? And you wouldn't want to bury something that looks like that inside a shelf where it would be difficult to get to the rear panel. So why not just do your source switching manually? Just use those extra RCAs as hitching posts for the unused cables. I mean, can't be whole lot more invonvenient than getting up to change the volume. :)

se

Steve Eddy 23rd August 2005 07:52 PM

Quote:

Originally posted by waltson
Why not. But I wanted to kind of mix classic wooden structure with sophisticated aluminium.
Fair 'nuff. You're using wood so you got my kudos anyway. :)

se

whatsnext 23rd August 2005 07:58 PM

Why not put the source switch on the back?

whatsnext 23rd August 2005 07:59 PM

Quote:

Originally posted by Steve Eddy


Who needs a switch? How frequenty are you changing sources anyway? And you wouldn't want to bury something that looks like that inside a shelf where it would be difficult to get to the rear panel. So why not just do your source switching manually? Just use those extra RCAs as hitching posts for the unused cables. I mean, can't be whole lot more invonvenient than getting up to change the volume. :)

se

Not sure about this guy but I change sources at least twice a day. That would wear out my nice cables pretty quick.
John.....

waltson 23rd August 2005 08:01 PM

Quote:

Originally posted by Steve Eddy


Just use those extra RCAs as hitching posts for the unused cables.

That's a great idea! That's what I'll do. Thanks for the great tip! :)


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