Single ended KT88

[RogerA]

Why do nearly all of the tube data sheets for KT88 only give examples for push pull?

Roger

 

[cademan]

Probably not quite searching properly but this site shows for single tube and then scroll down for push pull.

https://tube-data.com/sheets/084/k/KT88.pdf

The "MAXIMUM RATINGS" is for a single tube.

 

[Andyman]

Dig around here as the Kegger KT88 SEUL is a bit of a legend....

Another New KT88 SEUL Kegger Version

I built a 6L6 SEUL before Christmas 2012 and have been acquiring parts for a KT88 SEUL build. I'm a cheapo so I like to re-purpose parts like old power transformers and amp chassis and the like (not OPT, resistors or caps tho). So here's my new build. Power transformer is a Stancor PC-8412...

audiokarma.org

 

[Lavane]

Tubelab sold SE KT-88 PCB's that could alao be configured to use EL-34's, etc. I'm not sure he is making any new boards though.

 

[RogerA]

Looking through Frank Philipse site, only one of five examples shows an se. The search page link first several data sheets only show push pull. Like the Svetlana.

I know there are plenty of schematics out there of SE KT88s, just wonderful ng why many of the data sheets only show push pull. Seems weird to me. Nearly every data sheet I have looked at since I became interested in tubes, recently, show both examples.

Roger

 

[gadget73]

Why do nearly all of the tube data sheets for KT88 only give examples for push pull?

Probably because its not how they would have been typically used when they were current.

The 6550 datasheet does have single ended class A operation, should be about the same as a KT88.

 

[thorpej]

Probably because its not how they would have been typically used when they were current.

The 6550 datasheet does have single ended class A operation, should be about the same as a KT88.

Exactly this. They were big power tubes, and push-pull operation produces more power, which is why people wanted them in the first place.