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I gotta get one of these!


aerius

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Earlier today I came across the pictures from ETF '07.

http://www.dhtrob.com/etf/index.php?start=23

This is a picture of a totally out there headphone amplifier using transmitting tubes. Those tubes are around 7" tall, and the plate dissipation is up to 100W. For a pair of headphones. :o

And though it's not a headphone amp, this is just stunning.

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Was just looking through some of the other pics. These three are my favourite:

http://www.dhtrob.com/etf/index.php?start=14

http://www.dhtrob.com/etf/index.php?start=28

http://www.dhtrob.com/etf/index.php?start=85

Also, Eaphan, I think you've found the promise land. With most amps in attendance looking something like this...

http://www.dhtrob.com/etf/index.php?start=56

...it looks like you'd fit right in. ;)

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Earlier today I came across the pictures from ETF '07.

http://www.dhtrob.com/etf/index.php?start=23

This is a picture of a totally out there headphone amplifier using transmitting tubes. Those tubes are around 7" tall, and the plate dissipation is up to 100W. For a pair of headphones. :o

And though it's not a headphone amp, this is just stunning.

Thanks for the link. That amp looks really sweet :)

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<snip>and the plate dissipation is up to 100W. For a pair of headphones. :o

Not unlike my now-almost-complete headamp... it can be equipped with 7241 tubes and their plate dissipation is also up to 100W. Running two of them in parallel for each output channel... now THAT'S overkill. :D

Sweet amp pictures, aerius!

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What the L is that, a passive attenuator?

Yup. Given the tendencies of the ETF crowd, chances are it's a transformer volume control.

Are these bare wires? And capacitors? Doing what? They look like friggin' batteries.

I don't think they're bare wires, but it's hard to tell. And yes, those are capacitors, 3.15kV 6.3uF units to be precise. Scaling from the resistors they're at least the size of a 1lb coffee tin, and they'll kill you dead.

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