[mordy]

The 6080WB are graphite plate Bendix tubes relabeled Raytheon. I have a couple and they are excellent tubes.
Hard to see in the picture, but the bottom left tube looks like regular plates and not graphite plates.
FAA - could it mean Federal Aviation Administration? There are indications that these tubes were intended for ballistic missiles.

Take a look at this spec sheet - shock resistance 450 G, maximum altitude 60,000 feet:
https://frank.pocnet.net/sheets/138/6/6080WB.pdf

 

[Galapac]

Take a look at this spec sheet - shock resistance 450 G, maximum altitude 60,000 feet:
https://frank.pocnet.net/sheets/138/6/6080WB.pdf

That is good to know in case you are listening to your amp with these tubes dive bombing in your jet.
Crazy specs.

 

[pravous]

The 6080wb’s big brother the 7802wb. Built like a tank.

 

[jonathan c]

That is good to know in case you are listening to your amp with these tubes dive bombing in your jet.
Crazy specs.

“Tube-a, tube-a, tube-a !”……

 

[mordy]

The 6080wb’s big brother the 7802wb. Built like a tank.

How about the BIG BIG brother?

Cetron 6336B: 5A - can take the place of two or three 6080 tubes.
https://frank.pocnet.net/sheets/077/6/6336B.pdf

However, it seems to me that the 7802 is the little brother to the 6080, because the 7802 only draws 0.5A. The 6080 draws 2.5A, and the 6336 4.75A - 5A.

The main thing to remember with the 6336 tubes is to be careful not to touch them - they get really hot...

 

[Galapac]

How about the BIG BIG brother?

Cetron 6336B: 5A - can take the place of two or three 6080 tubes.
https://frank.pocnet.net/sheets/077/6/6336B.pdf

However, it seems to me that the 7802 is the little brother to the 6080, because the 7802 only draws 0.5A. The 6080 draws 2.5A, and the 6336 4.75A - 5A.

The main thing to remember with the 6336 tubes is to be careful not to touch them - they get really hot...

Your right about that, I have the 6336A version, like steak on a grill sizzle hot.

The only other tube that has bit me was a Svetlana Winged ==C== EL34, for some reason those tubes got extremely burn your skin hot too.
I was checking the back of my amp to make sure my transformers were not getting too hot and brushed up against the EL34 and BAM!... Emeril sizzle.

 

[mordy]

Your right about that, I have the 6336A version, like steak on a grill sizzle hot.

The only other tube that has bit me was a Svetlana Winged ==C== EL34, for some reason those tubes got extremely burn your skin hot too.
I was checking the back of my amp to make sure my transformers were not getting too hot and brushed up against the EL34 and BAM!... Emeril sizzle.

Yeah - had the same experience. Apparently my reflexes are good, because I pulled out my arm so quickly that I broke a guide pin on a tube and smashed one of my cooling fans.
The good thing is that these things only happen once…
Anyhow, the tube was still usable, and the fan was scavenged from an old PC so no big loss, and the burn healed up after a while.
Just another day in a tube roller’s life…

 

[gibosi]

How about the BIG BIG brother?

Cetron 6336B: 5A - can take the place of two or three 6080 tubes.
https://frank.pocnet.net/sheets/077/6/6336B.pdf

However, it seems to me that the 7802 is the little brother to the 6080, because the 7802 only draws 0.5A. The 6080 draws 2.5A, and the 6336 4.75A - 5A.

The main thing to remember with the 6336 tubes is to be careful not to touch them - they get really hot...

The Radiomuseum site is incorrect. The major difference between the 6080 and the 7802 is the amplification factor, 2 for the 6080 and 9 for the 7802.

https://frank.pocnet.net/sheets/049/6/6080.pdf

https://frank.pocnet.net/sheets/077/7/7802WB.pdf

 

[pravous]

Even bigger is the transcondance. Max 8200 for the 6080, 18k ish for the 7802.

 

[mordy]

The Radiomuseum site is incorrect. The major difference between the 6080 and the 7802 is the amplification factor, 2 for the 6080 and 9 for the 7802.

https://frank.pocnet.net/sheets/049/6/6080.pdf

https://frank.pocnet.net/sheets/077/7/7802WB.pdf

Thanks for that information - usually I find the Radiomuseum reliable.
So basically the same relationship between 6080 and 7802 as between 6336 and 6528 that have the same current draw but their amplification factors differ in the same way?
If an amplifier has been designed for low amplification (2) power tubes, my personal experience has been that power tubes with higher amplification (9) will increase and amplify noise in the driver tubes. The volume also increases.
However, I have not been able to find out how the multiplication factor is affected by having 4 or 6 power tubes.
Does it remain the same as for one pair, or is it being lowered by multiple pairs?

 

[GrindingThud]

The 6080wb’s big brother the 7802wb. Built like a tank.

I love my 7802s…

 

[Thaddy]

7802's are a safe replacement for the 6080/6AS7G?

 

[gibosi]

Thanks for that information - usually I find the Radiomuseum reliable.
So basically the same relationship between 6080 and 7802 as between 6336 and 6528 that have the same current draw but their amplification factors differ in the same way?
If an amplifier has been designed for low amplification (2) power tubes, my personal experience has been that power tubes with higher amplification (9) will increase and amplify noise in the driver tubes. The volume also increases.
However, I have not been able to find out how the multiplication factor is affected by having 4 or 6 power tubes.
Does it remain the same as for one pair, or is it being lowered by multiple pairs?

I believe that when they are run in parallel, the AF remains the same. So running the 7802 would be similar to running four or six 6BX7, with an AF of 10. But don't quote me on this. lol

 

[gibosi]

7802's are a safe replacement for the 6080/6AS7G?

Yes, it is safe. But depending on how your amp is configured, it might be a little louder.

The big problem is these tubes are very rare. So good luck on finding a pair!

PS: If someone manages to find a bunch of these, please let me know.

 

[Thaddy]

Yes, it is safe. But depending on how your amp is configured, it might be a little louder.

The big problem is these tubes are very rare. So good luck on finding a pair!

PS: If someone manages to find a bunch of these, please let me know.

I quick Google search returns nothing! I'm very intrigued though, may have to search some out to try in my WA22.