dertonarm

Responses from dertonarm

Bent Cant, Can't get azimuth right. Does it matter
Hi Tom, the situation you do describe is a cartridge which should always and right away be returned to the manufacturer - its certainly defective.Which brings us back to Raul and the fact that we - the customer - do get what we accept.If we accept... 
MC Load Resistance
Lewm, just a general guideline I have found very useable and giving very close to perfect results: choose a transformer which primary is about 10x to 12x the source impedance of the moving coil. Go for a step-up ratio not higher than 1:12. The res... 
Bent Cant, Can't get azimuth right. Does it matter
Tketcham, there are two parameters in a given MC cartridge that need to be aligned when mounted in a given tonearm:1) the position of the stylus' polished area in relation to the cutting angle of the groove walls.2) the position of the coils (atta... 
Bent Cant, Can't get azimuth right. Does it matter
With any cartridge featuring a "bent" or "off-line" cantilever one should always remember that it is the cantilever (and of course ultimately the polished area of the stylus in position towards the grooved walls of the record...) that has to be al... 
MC Load Resistance
Allenwright, Atmasphere, I do agree with Atmasphere (surprise...?). All (low-output) Moving Coils do need "some" dampening. And yes, - in my experience too that extra "air" is going in most (maybe all) cases along with "lack of body" and has a sen... 
Graham Phantom vs. Phantom II
Dgad, great - now you tell me I am wrong.O.K. - wrong, but.... wrong with what ? Anyway - after having learned so much from your two posts, I won't die a stupid man.............Syntax - you were so right! 
Graham Phantom vs. Phantom II
Dgad, let me quote myself:"The distance of the counter weight from the pivot does NOT determine the effective mass of a tonearm.The damping fluid is located circular around the pivot and thus the amount do have ZERO effect on the moving mass of th... 
MC Load Resistance
Atmasphere, apparently you totally miss my point - your initial two sentences in your last post seems to imply that...Anyway - I have built, bought, had and still have active phono stages with gain up to 78 dB. Suitable for almost everything the c... 
MC Load Resistance
Atmasphere, I took the term "feedback" for good reason.It illustrates nicely what happens when the MC cartridges gets "loaded down" into the 10 - 30 Ohms region and gives a nice idea too about the sound you may expect to get.The point of inductanc... 
MC Load Resistance
Lewm, - a further add-on to my earlier statement and more direct in answer to your questions.- the mismatch between the source impedance and inductance of the moving coil cartridge with the following amplification-stage does result in a NOT optimu... 
MC Load Resistance
Dear Lewm, any moving coil cartridge does have a coils whose movement in a given magnetic field gives the output. This coil (singular - as we are looking at one channel now...) has a source impedance - that is the parameter everybody knows about a... 
MC Load Resistance
Dear Almandog, by altering the load resistance of a MC-cartridge you do alter the level of feedback. When going down with the load resistor you do increase the feedback and the bass will ever tighten up and the whole sound do get more controlled (... 
Graham Phantom vs. Phantom II
The distance of the counter weight from the pivot does NOT determine the effective mass of a tonearm.The damping fluid is located circular around the pivot and thus the amount do have ZERO effect on the moving mass of the tonearm.The effective mov... 
Graham Phantom vs. Phantom II
As for ALNICO - even if there are "better" (read: stronger, smaller (=concentrated) and more homogenous field emitting) magnets on hand today, the "oldschool" Alnico as well as the rare earth samarium-cobalts magnets in cartridges old and new ofte... 
Da Vinci AAS Gabriel
Dgad,yes - I did. About 18 years ago. First I was suspicious about this too. The big magnetic rings relatively close to the tiny magnets inside the cartridge,....hmmm.However, - as the tests showed (and some measurements done at the technical high...