[Elecraft] Bias and Dynamic Mics

[Joe Subich, W4TV]

Even if the bias does not saturate the coil and cause distortion,  it 
*will* reduce the output (sensitivity).  A dynamic mic typically has
a very low (< 5 mV) output level any reduction in output level is to be
avoided.

73,

    ... Joe, W4TV


On 11/5/2015 1:11 AM, Jim Brown wrote:
> On Wed,11/4/2015 6:39 PM, Bob McGraw - K4TAX wrote:
>> Yes, with any dynamic mike being used, set the bias to the off position
>
> Don Wilhelm says that some dynamic mics sold to hams DO get distorted
> with bias applied. Whether it's a poor mic or a saturated transformer,
> it's clearly better to turn off bias when using a ham dynamic mic.
>
> 73, Jim K9YC
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