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06-06-2023, 02:36 PM
Hi Guys
There are no "metal element" pots, you must be referring to ceramic or plastic elements. The plastic element is usually the longest life-cycle.
When setting bias in push-pull set the first side of the circuit by meter so you know the idle is safe, then set the other side by ear for minimum hum with NO SIGNAL into the PA. The bias pot may make a noise while being rotated if the track is dirty. The noise is related to the DC shift and the unevenness of the track.
There are no "metal element" pots, you must be referring to ceramic or plastic elements. The plastic element is usually the longest life-cycle.
When setting bias in push-pull set the first side of the circuit by meter so you know the idle is safe, then set the other side by ear for minimum hum with NO SIGNAL into the PA. The bias pot may make a noise while being rotated if the track is dirty. The noise is related to the DC shift and the unevenness of the track.
