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Old 19th November 2009, 06:14 PM   #1
arhi45 is offline arhi45  Romania
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Default 5 watt class a

Hello,
There is a Nelson Pass 5 watt class a amplifier, please? I have some small heathsinks.
Thank you.
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Old 19th November 2009, 06:31 PM   #2
Zen Mod is offline Zen Mod  Serbia
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make small Aleph J , or small F5

in any case - don't go bellow 2x15 to 16V PSU ;

rise bias untill you can keep your hand on heatsinks 5sec max
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Old 19th November 2009, 06:38 PM   #3
arhi45 is offline arhi45  Romania
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Have a a 24V/2A transformer. It's enough ?
Both seems to need much larger heatsinks. Heatsinks I have can dissipate about 30watt of heat.

Last edited by arhi45; 19th November 2009 at 06:45 PM.
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Old 19th November 2009, 06:52 PM   #4
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if you use smaller PSU voltages , same as steady current ( Iq) , dissipation will be lower , same as output power

as I said - don't go bellow +/-15 V and 1A Iq , because linearity will suffer

that's exactly 30W dissipation

you'll need 2x12Vac/120VA xformer for that
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Old 19th November 2009, 07:20 PM   #5
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Build a mini Aleph. :P
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Old 19th November 2009, 07:40 PM   #6
Zen Mod is offline Zen Mod  Serbia
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yup .... and 8 leg critter preamp .......

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Old 19th November 2009, 07:54 PM   #7
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I want one of those.

Mrs. Magura
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Old 19th November 2009, 08:02 PM   #8
arhi45 is offline arhi45  Romania
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thanks anyway, I found something.
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Old 19th November 2009, 08:03 PM   #9
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Quote:
Originally Posted by arhi45 View Post
thanks anyway, I found something.
What did you end up going with ?
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Old 19th November 2009, 08:05 PM   #10
arhi45 is offline arhi45  Romania
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3 - 5 Watt Class-A Audio Amplifier - RED - Page80
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