Possible reasons changing fuses could make a difference:
- fuse socket is contaminated. Metal to metal junctions become semiconductors over time. R&Ring the fuse a couple of times can restore metal to metal contact.
- fuse element has degraded over time from ’near misses’ in thousands of heatings and coolings
IMO, the #1 reason ’fuses have sound’ is lack of rigor on the part of evaluator. There are 1001 other things that introduce ’differences’ far more audible than a couple of mΩ. See WinterBlues
Unless the DUT can be changed without the CBLF’s knowledge, AFTER a clean contact / standard fuse baseline is established, and note changes concomitant with either device when unknowingly substituted, then it’s just fantasy.
- fuse socket is contaminated. Metal to metal junctions become semiconductors over time. R&Ring the fuse a couple of times can restore metal to metal contact.
- fuse element has degraded over time from ’near misses’ in thousands of heatings and coolings
IMO, the #1 reason ’fuses have sound’ is lack of rigor on the part of evaluator. There are 1001 other things that introduce ’differences’ far more audible than a couple of mΩ. See WinterBlues
Unless the DUT can be changed without the CBLF’s knowledge, AFTER a clean contact / standard fuse baseline is established, and note changes concomitant with either device when unknowingly substituted, then it’s just fantasy.