Budget 300B hum pots with DC heaters.
Steph mentions in a video that output tube heaters with DC is guaranteed to be quiet. If that's the case are the hum pots really necessary? Thinking less is more in the signal path.
Thanks
Al
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Vacuum Tube Audio Gear
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Yes, trim pots are necessary to eliminate hum well. I modified the original construction by adding Rod Coleman regulators and eliminating the trim pots. Absolute silence and, as a first impression, a clearer sound. This is a good project and worth building.