Suncalc wrote:
M. Gregg wrote:
OK as non signal grid stoppers.
It has been my experience that the Allen Bradley CC resistors are incredibly noisy. In low signal conditions it is mostly the characteristic hiss, but it is very prevalent.
A few years ago i measured some "Allen Bradley" resistors (some were probably not brand resistors but from other suppliers) from several sources and they were mostly the same. All very typical old style CC resistors with typical noise profiles. When compared against several different metal films, noise levels were typically about 30dBv higher in the CC types.
I know that there are articles all over the web about how "awesome" AB resistors are supposed to be, but frankly I would never use them in a high fidelity system in any location. Maybe in a guitar amp if I was looking for a retro sound, but for the most part, I leave them for others.
Hi,
Yes my experience with any carbon resistor has been that they are extremely noisy, that includes the Takman carbon film.
However Takman REX work well in line stage cathode position. As an input resistor the hiss is really bad.
I have them in my Aikido line stage and they open up the sound like no other I have tried including tantalum/dale/or takman REY.
I used to use carbon film in power stages years ago and thought they were very good at the time.
I am going to try the Alan Bradleys in this amp across the speaker terminals.
NB on a different note the Clarity Cap has been quite successful which is a surprise. Initially it made the HF a bit in your face, however its calming down over the last few hours and the detail is getting better.
Just as a reflection. The resistor issue is the inductance issue I have used Mills in the past and I know the sound signature of them.
Metal films can be really bad as well they can make the HF really dirty the small 0.5 watt that Maplin sell are really bad, but the 2 watt are OK.
I don't know what make they are, the best description I can give is the audiophile glare that is talked about. It makes the frequency band sound selective and smears the detail in the audio.
Just for interest the REX carbon in the wrong place sound dull and it has been an interesting roller coaster ride trying them out.
NB Takman mention directionality with the REX in the data sheet<<don't know if its a gimmick or if it has any merit.
I know for a fact that the Takman metal film make equipment sound bright and its a typical MF sound but without the hash.
However they are very good.
Its interesting to note that duelund cast are graphite<<not necessarily the same but its worth a try.
Here is the REX data sheet for a laugh (directional) OK its a gimmick LMAO.
Its not relevant really because this amp uses mainly Tantalum magnetic.
I guess its a bit weird but I always use resistors in the same direction on both channels<<I can't live with the codes being different directions. If I make a mistake it comes out again and gets changed..LOL does it make a difference who knows but its doesn't hurt either.
If I wasn't using tantalum it would be a mix of Kiwame select positions possibly in the PSU and Takman MF for everything else but its a poor substitute. The Takman carbon are only useful in certain places I wouldn't use them to replace other carbon films.
Regards
M. Gregg
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