IC-based 7-watt amplifier bias voltage

Started by Lame, February 23, 2009, 04:17:42 PM

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Lame

Hi! What I have to do with that Vbias-thing? Where do I connect that? I know that it is explained somewhere but I need clear instructions. Could someone draw me some kind of picture or something? That circuit would be useful for my tube pre-amplifier.



grapefruit

If you have VDD/2 available connect it to that, otherwise put a 100k resistor between pin 6 and 6, and also pin 4 and 2. This will bias it at 1/2 VDD which is the maximum. If it goes near ground the amp will shut down.

Check the datasheet....

Stew.

brett

Hi
Quotepin 6 and 6, and also pin 4 and 2
That should probably read pins 6 and *2* and also pins 4 and 2.
good luck
Brett Robinson
Let a hundred flowers bloom, let a hundred schools of thought contend. (Mao Zedong)

grapefruit