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CARVIN V3M How-To page 6

How to bias

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STEP 12
With the meter connected to the Standby switch, turn the switch to Standby (OFF).
The meter should now display a reading near 80mA.
If you have new tubes, this reading will likely be higher or lower.
NOTE: If your meter reads higher that 150mA or goes into overload "OL" , you
should turn off the amp immediately as the amp may have a bad tube.
STEP 13
IMPORTANT: Set your meter to DC Current, your meter should read mA DC.
It is OK and normal for the bias reading to fluctuate a little bit and may not be
exactly 80mA, but as close as possible.
Good Bias
Congratulations! Your amp is now properly biased.
*PLEASE READ NEXT PAGE FOR SAFE METER REMOVAL and Power off.
Use a small, flat head screwdriver.
* A plastic screwdriver is preferred. Use caution if
using a metal screwdriver, to not touch other parts.
-If the meter reads over 80mA, lower the bias
by turning the bias potentiometer clockwise.
-If the reading is under 80mA bring it up by
turning the potentiometer counter-clockwise.
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