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Old 23rd August 2013, 05:57 PM   #31
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I'm running 114f at the heat sink and 121f at the mosfet, biased at .6v. It looks as though I can up the bias without burning it up.
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Old 23rd August 2013, 06:25 PM   #32
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Quote:
Originally Posted by McQuaide View Post
I'm running 114f at the heat sink and 121f at the mosfet, biased at .6v. It looks as though I can up the bias without burning it up.
Most probably the underlined voltage in your post above is a typo and needs to be 3.6V per schematic. 114f = 46 Celsius for the sink. and 121f is 49 Celsius for the MOSFET.
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Old 23rd August 2013, 07:05 PM   #33
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0.6V drop at the source resistors is correct.
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Old 23rd August 2013, 07:13 PM   #34
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.6v at R11 and R12.
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Old 23rd August 2013, 10:18 PM   #35
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Originally Posted by AudioSan View Post
0.6V drop at the source resistors is correct.
Oops. my mistake. Thank you both.
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Old 24th August 2013, 07:30 AM   #36
Hikari1 is offline Hikari1  United States
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McQuaide:

Take it to .7V. You won't be sorry. Unless it burns up. Then you will really be sorry.
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Old 24th August 2013, 01:19 PM   #37
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Originally Posted by Hikari1 View Post
McQuaide:

Take it to .7V. You won't be sorry. Unless it burns up. Then you will really be sorry.
.
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Old 24th August 2013, 02:33 PM   #38
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Quote:
Originally Posted by McQuaide View Post
.
Please show a picture of the heatsink.
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Old 24th August 2013, 02:54 PM   #39
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It's the standard case from the store.

Click the image to open in full size.

Click the image to open in full size.
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Old 24th August 2013, 04:02 PM   #40
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Impressive workmanship.
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