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Old 27th Dec 2011, 5:59 pm   #7
jjl
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Join Date: Jan 2003
Location: Ware, Herts. UK.
Posts: 1,082
Default Re: I want to build a stereo headset valve amplifier

You only need a few 10s of milliwatts in order to drive your headphones to deafening levels.
With that in mind, there is no need to build a valve amp that can output several watts to drive your headphones. In order to safely be used, you would still have to waste nearly all of the 3 or 4 watts that a single ended EL84 or 6V6 could provide.

John
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