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 NEW  Bruce Heran outlines the details and construction of his simple DIY 6DJ8 (ECC88) Tube Hi-Fi Headphone Amplifier Project.

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PostPosted: 04 Nov 2010, 19:20 
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Joined: 27 Oct 2010, 20:27
Posts: 28
is there a good way to wire a headphone jack into this amp. I've seen some people split it off from the speaker terminals with a 100K resistor, is this a decent way to do it, or is there a better way?


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PostPosted: 05 Nov 2010, 18:27 
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Joined: 28 May 2008, 21:53
Posts: 4286
Location: Winnipeg, CANADA
You need to properly load the amp. A 10W, 8 ohm resistor across the speakers outputs will do and this properly loads the tube amp. Then run a ~120 ohm 2W resistor from the + speaker output and to the headphones.

Essentially it will be like a dummy speaker / amplifier load.

Cheers

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[ DIY Mains AC Power Cable Cord ] - [ Gobo LM1875 Amp Kit ] - [ Tang Band D4-1 Horn Speaker Kit ] - [ Monoblock Push-Pull KT88 Tube Amp Kit ]


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PostPosted: 06 Nov 2010, 00:13 
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Joined: 27 Oct 2010, 20:27
Posts: 28
Thanks!


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