MtnDon wrote:A PWM controller is ideal as long as the frequency is high enough. ebay has loads of them available. Here's one of many. that one has a frequency of 25KHz, beyond what most folks could hear. The one linked to in the Dec 25th post does not list the frequency. So that may be a gamble. To make matters more confusing some people hear the PWM more readily than others. I don't have that concern being a little hard of hearing from assorted youthful indiscretions.
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