[wirewiggler]

So I was upgrading my Schitt Audio Bifrost 2 with the latest DAC card (to my surprise it was an improvement) and on a lark ordered the little coaster amp. If I read it correctly for $12 you get four of the printed circuit boards. It is a cute little amp and it uses a pair of the little miniature tubes, I won’t be building 4 and don’t plan on using the other 3 as coasters. If anyone is interested I will give the extras away. Should be an interesting comparison between the 2 amps since they are pretty much extremes in the investment area.
Bill

 

[miter53]

pm'd you...

 

[bcowen]

So I was upgrading my Schitt Audio Bifrost 2 with the latest DAC card (to my surprise it was an improvement) and on a lark ordered the little coaster amp. If I read it correctly for $12 you get four of the printed circuit boards. It is a cute little amp and it uses a pair of the little miniature tubes, I won’t be building 4 and don’t plan on using the other 3 as coasters. If anyone is interested I will give the extras away. Should be an interesting comparison between the 2 amps since they are pretty much extremes in the investment area.
Bill

Would also be interesting to outfit the coaster with some uber-premium parts and see how it compares to one with more pedestrian components. But probably a waste of money.

 

[DenverW]

Would also be interesting to outfit the coaster with some uber-premium parts and see how it compares to one with more pedestrian components. But probably a waste of money.

I always use audiophile coasters. It makes my coffee more full bodied and increases the width of the tastestage.

 

[wirewiggler]

Well these are not what I would consider audiophile (Schiit coasters), but my taste buds are shot and I drink crappy coffee anyway.
Bill

 

[bcowen]

I always use audiophile coasters. It makes my coffee more full bodied and increases the width of the tastestage.

LOL! But have you had your coasters quantum tunneled? If not, you're only getting a reasonable facsimile of audiophile coffee.

 

[Toonartist]

Everything has been bought apart from the ELMA output switch. Waiting on Brian to contact me about that!

Can't wait to get started!!

For those in the UK, Orso has been excellent source for the Lundahls... very good customer service!

 

[Marutks]

Where did you get Jupiter Copper Foil capacitor?
https://www.hificollective.co.uk/catalog/0-22uf-400v-jupiter-copper-paper-wax-capacitor.html (out of stock)

 

[Tom-s]

Alternatives are 600V 0,22uf versions. They also fit in the existing holes. Another option could be 0,15uf 400V or 600V.

If all else is equal and it fits I personally tend to use the thicker insulation alternative of a cap. So the 600V version in this instance.

The 35mm cap length is the limiting factor mostly.

As for other options. Mundorf Silver gold oil fit perfectly well. Audyn true copper (another preference) barely fits. The max version is too big.

Duelund caps are more difficult to fit given their size. Here’s a picture with 0,1uf Duelund that I use in my Aegis at this moment. This picture shows how difficult it is to fit. But am still optimizing my parts choice. Will go back to Jupiter 0,22uf 600V after this

 

[Toonartist]

Where did you get Jupiter Copper Foil capacitor?
https://www.hificollective.co.uk/catalog/0-22uf-400v-jupiter-copper-paper-wax-capacitor.html (out of stock)

Direct from Jupiter. 127.57 for parts and postage.

 

[funch]

Also check out Miflex.

 

[DenverW]

Also check out Miflex.

I had some miflex coppers (kp01?) on a previous Bottlehead s.e.x. Build and they’re good caps, just be careful that the wires will work, they were a very thick braid and hard to fit into the circuit board. It was worth it though, great caps. Another good one are the duelund caps.

 

[ScornDefeat]

@L0rdGwyn

Quick question, I am mocking up a vector file for engraving the rear panel, just want to make sure that the CAD files aren't mirrored/flipped when assembled, so that my .DXF are accurate (and won't be upside-down when engraving....)

Adding text to the CAD files you provided, is the following accurate?

 

[L0rdGwyn]

@L0rdGwyn

Quick question, I am mocking up a vector file for engraving the rear panel, just want to make sure that the CAD files aren't mirrored/flipped when assembled, so that my .DXF are accurate (and won't be upside-down when engraving....)

Adding text to the CAD files you provided, is the following accurate?

That's correct, the files are viewed as if you are looking at the panel straight on from the outside. Right channel on top, left on the bottom. High Z when turning to the left when viewed from the back, low Z to the right.

 

[ScornDefeat]

That's correct, the files are viewed as if you are looking at the panel straight on from the outside. Right channel on top, left on the bottom. High Z when turning to the left when viewed from the back, low Z to the right.

Thanks! Really appreciate the prompt response, figured that was the way you designed the files but just wanted to make sure.