[blackdragon87]

I wanna buy an WA2 please pm me if for sale. 115 VAC

 

[ucmgr]

I try to let my WA-22 warm up about 1/2 hour if I have the time. Otherwise, I fire it up and listen and notice the changes as it warms up. No right or wrong answer just depends on your time frame and your patience

 

[Basco]

I use these “Burn-in tools” when I power up my tubes.

Read some thread about it and it seems to be „snake oil“

 

[Slade01]

Read some thread about it and it seems to be „snake oil“

Well at least its only a few dollars. I don't think you'd need anything plugged in for tubes to burn in as long as the current is going and its a' glowin'.

 

[pippen99]

Not according to Woo(at least on a WA33)

 

[Slade01]

Not according to Woo(at least on a WA33)

That makes sense. I don't think WA33 is an OTL right? Then it should maintain some sort of load (e.g. headphone plugged in).

 

[ThanatosVI]

That makes sense. I don't think WA33 is an OTL right? Then it should maintain some sort of load (e.g. headphone plugged in).

It really depends on amp Design.
My Octave is fine without any load connected to it.

 

[mab1376]

I try to let my WA-22 warm up about 1/2 hour if I have the time. Otherwise, I fire it up and listen and notice the changes as it warms up. No right or wrong answer just depends on your time frame and your patience

The manual only states "Allow approximately 5 minutes of warm-up."

 

[jbua5150]

Read some thread about it and it seems to be „snake oil“

To clarify.
I don’t use them for “burn-in”.
I use them to provide a load when I power up my OTC tube amps.

 

[jbua5150]

The manual only states "Allow approximately 5 minutes of warm-up."

I use a few tubes that make “tinkling” noises for at least 20 minutes until they are fully warmed.
Most of my 6F8G and 6C8G preamp tubes behave this way.

 

[pippen99]

Out of curiosity(and boredom) I checked the owner's manuals I could access. The following explicitly state to plug in a headphone before powering up: WA2, WA3, WA5 LE, WA6, WA6-SE, WA22, WA33. The manual for the WA7 Fireflies does not recommend plugging in a headphone or I missed it. I could not find an online manual for the WA23 or WA234.

 

[jbua5150]

Out of curiosity(and boredom) I checked the owner's manuals I could access. The following explicitly state to plug in a headphone before powering up: WA2, WA3, WA5 LE, WA6, WA6-SE, WA22, WA33. The manual for the WA7 Fireflies does not recommend plugging in a headphone or I missed it. I could not find an online manual for the WA23 or WA234.

This is precisely why I use the xDuoo “burn-in tool” when powering up either WA6-SE or WA22.
Prior to my implementation of the “burn-in tool” I’d had a capacitor blow on the WA6-SE with my LCD-X plugged in.
There were very loud, nasty, popping noises that omitted from the LCD-X.
This experience is what motivated me to no longer power up my amps with expensive headphones plugged in.
I then used a cheap pair of Monoprice headphones while powering up.
The “burn in tool” is much more convenient for me.

 

[9bphillips]

I often turn my amps on at least an hour before I intend to listen. I use these “Burn-in tools” when I power up my tubes.
It provides a 16ohm load, and if something went bad upon warm-up, my expensive headphones would be spared any possible damage.

It says it is 3.5mm. How do you use it with a woo amp?

 

[jbua5150]

It says it is 3.5mm. How do you use it with a woo amp?

3.5mm to 6.35mm adapter.

 

[vlach]

Out of curiosity(and boredom) I checked the owner's manuals I could access. The following explicitly state to plug in a headphone before powering up: WA2, WA3, WA5 LE, WA6, WA6-SE, WA22, WA33. The manual for the WA7 Fireflies does not recommend plugging in a headphone or I missed it. I could not find an online manual for the WA23 or WA234.

I've never plugged a headphone in my WA2 while it warms up and never had a problem.