Tube Porn

[Hemisaurus]

600W amp using a single ended design and one output tube

[Hemisaurus]

[dogfood]

this is what I consider toob porn!

[bloodofkings]

That glowing tube picture is the background picture on my phone.

[LogicalFrank]

600W amp using a single ended design and one output tube

I must know more!

[Hemisaurus]

600W amp using a single ended design and one output tube

I must know more!

Well first you need to get a power transformer capable of delivery a 3000V plate voltage, and a bunch of insulated stand-offs, and I think I figured out something like a 15K primary 600W output transformer. Despite being single ended, I think I'd probably go with a fixed bias for this, so you'd want a tap on the power transformer for that.

Dave Chambers made a 1000W amp with 4 813 tubes, that ran at 2500V plate so all his safety measures would apply here as well.

[spookstrickland]

600W amp using a single ended design and one output tube

I saw some really big tubes like that in an old Radio Station I used to work at.  I should have snagged one just to put on the shelf and look at.

[Hemisaurus]

Speaking seriously for a second, you could probably run one at a much lower plate voltage and still make it useable. Wonder if it could be run at a plate as low as 300V or so. It's only 12V for the heater. You'd have way, way much headroom.

[SpaceTrucker]

^That looks like a fire waiting to happen.

[inductorguitars]

^That looks like a fire waiting to happen.

Nah. I bet it runs real cool. It's only running <1/3 the rated plate voltage.

[Hemisaurus]

That's actually a different pic, some guy running it SE triode only 680V on the plate.

I guess the two anode caps are so you can chain the plate voltage from one tube to the next, save building complicated leads from the output transformer.

[inductorguitars]

That's actually a different pic, some guy running it SE triode only 680V on the plate.

I guess the two anode caps are so you can chain the plate voltage from one tube to the next, save building complicated leads from the output transformer.

Ah.  Those are old radio toobs. They'd string the anode leads cuz there were a boat load of them to reach broadcast wattages.

[the_brow]

[the_brow]

Can you imagine cranking some High On Fire through this

[Hemisaurus]

[mawso]

600W amp using a single ended design and one output tube

with winter just around the corner I wouldn't mind one of these!  it'd go well in the living room, with some marshmallows and a stick

[inductorguitars]

Meh the CRT colours the sound too much, usually towards green. 

[RAGER]

Bush would think that was a WMD.