SET Asylum

Single Ended Triodes (SETs), the ultimate tube lovers dream.

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Generally, "lower" is better

Posted by Chip647 on June 11, 2022 at 16:50:44:
Lower resistance, lower capacitance, lower inductance, lower ESR Caps that achieve an acceptable level of ripple and regulation tend to sound better.

That being said, choke input filters can enable lower total capacitance while providing better regulation to achieve a ripple target.

Filters with a lower resistance do sound subjectively better due to better regulation. Even Class A has variation in current demand.

Tubes are higher resistance than solid state diodes. For tubes, people like damper diodes due to the lower resistance. The venerable 5AR4 is a lower resistance rectifier than tubes like the 5U4.

In the end, though, the effect is swamped by the circuit design, and build quality, parts and technique.