Speaker tube amp with headphones

[Simpleton]

Hi!

I've searched a bit here but found nothing conclusive.
I would like to ask how i connect a headphone output to my tube amplifier. It's a World Audio Design KECL82 amp (sadly discontinued🙁)

Thank you all

 

[rickcr42]

seems like a couple of 120 ohm 3 watt build out resistors from the transformer secondary plus two of 100 ohm from "hot" to ground/common and a speaker /headphone DPDT should do the trick.

not the most elegant solution but one that should work.

Be aware that you want the output transformer to see a load at all times or you risk damage to it

 

[DigitalJunkie]

For one of my tube amps I just plug in some 8ohm 10W resistors,with my headphones in parallel....it works great!

 

[rcavictim]

For one of my tube amps I just plug in some 8ohm 10W resistors,with my headphones in parallel....it works great!

I'm sure that is what I would do too if headphones could make my day. Sadly they don't. Listening to music would be a heck of a lot cheaper and take up way less space.

I have a MingDa MC34B tube amp that has a big multi way toggle switch on the side to go to headphone mode. They place large power resistors across the output xfmer secondaries while disconnecting the speakers. I do not know if they also insert some ohmage in series with the phone jack.

 

[rickcr42]

Parallel resistors is not the best method and either series resistance or series/parallel (L-Pad) better.

A simple method can be seen here and one that if desired could be built into many amps

http://www.avahifi.com/root/audio_basics/ab_pdf/ab1993-07.pdf

 

[Cassiel]

Dead link

 

[Sherman]

Dead link

But since the entire URL is present in the link you can simply type it in. That works.