What do you think about Mills resistor, MRA-05 model, to put in the last stage of an solid state amp ?
The datasheet says that this resistor is well suited for hi-fi: non-magnetic, non-inductive.
Alain
The datasheet says that this resistor is well suited for hi-fi: non-magnetic, non-inductive.
Alain
You have expensive taste. $4-5/piece😬.... for the commercial space sector? What are we doing here on Earth - we use KOA Speer BPR58. They are doing a great job and are competitively priced, at about $1-2.
If you want an even better series, try Dale NS, but as @BATE VANKO says, there are always better solutions, I use Ohmite WN, which are 1/3 the price of Dale MRA or NS, and I am satisfied with the quality especially the sound.
Koa Speer BPR58 has 5 or 10% tolerance. For a single device output stage this could be fine.
For multiple and matched output devices, I would not use more than 1%.
Personally I use Dale RS-2B 0.5% emmiter resistors for my 7pairs output stage.
Following thread leaded me towards the Mills for a possible upgrade. https://www.diyaudio.com/community/threads/power-amp-output-stage-measurements-shootout.374367/
For multiple and matched output devices, I would not use more than 1%.
Personally I use Dale RS-2B 0.5% emmiter resistors for my 7pairs output stage.
Following thread leaded me towards the Mills for a possible upgrade. https://www.diyaudio.com/community/threads/power-amp-output-stage-measurements-shootout.374367/
I have already used BPR58...
I like them.
But I'm restoring an amp and there's no room up high to put BPR58.
This is why I use axial resistors like Les Mills.
Finally, we find the Mills at $3.5.
I like them.
But I'm restoring an amp and there's no room up high to put BPR58.
This is why I use axial resistors like Les Mills.
Finally, we find the Mills at $3.5.
Depends on where you want to use them and how important the non-inductive property is. If these are to be used in an emitter position, sure. There are other options that can meet your requirements for wattage, ppm, tolerance and non-inductive, for less outlay.
I have used Mills MRA in the past for a regulator, back when they were inexpensive.
I have used Mills MRA in the past for a regulator, back when they were inexpensive.