intactaudio
Responses from intactaudio
| Cartridge loading Ralph,To be clear, a current amplifier does not significantly load the cartridge. The 'zero ohms' thing that you see talked about in reference to them refers to the virtual ground with which the cartridge plays a part.I built a spice simulation of... | |
| Cartridge loading I don't agree. Coil moving in a magnetic field can generate only one thing - voltage. This is the lesson of papa Faraday :)OK you win :-) Ralph... If I can ask you a question which might clear up a lot of things here....IOW when the cartridge is... | |
| Cartridge loading A MC cartridge is inherently a current generatorI want to be clear that I was not stating this as my belief but to point out it is an argument made for using a current amplifier rather than a voltage amplifier.My personal take on it is that the co... | |
| Cartridge loading Hey Lew.It appears as if this guy has a good take on what is going on with the 0Ωhttp://phonoclone.com/diy-pho4.html I quickly simmed the circuit and it appears as if the input Z is frequency dependent and around 0.001Ω @ 10hz and increases by a f... | |
| Cartridge loading As I have mentioned many times, the input impedance cannot be zero. If it were, you would have no output at all because the signal would be connected directly to ground. While it is true that no voltage can develop across 0Ω that doesn’t mean that... | |
| Cartridge loading To add to what I mentioned above, The big wrinkle that got me interested in all of this is the trend for current amplification that pops up every half a decade or so. The story goes something like this.... A MC cartridge is inherently a current ... | |
| Cartridge loading I think much of the issue here is confusing / lumping together the electrical and mechanical aspects of loading. Tracing high frequencies is a mechanical thing and while electrical loading will have an effect on this mechanical aspect, assuming ... | |
| Lyra Atlas SL Cartridge Magnet type?? for a given coil movement, cartridge output is simply the combination of flux and length of wire in that flux. In order to change one you must change the other to get the same output. The third side of this "triangle" is the cartridge impedance ... | |
| Lyra Atlas SL Cartridge Magnet type?? @daveyf Neodymium is king when it comes to flux per uinit density but i believe the strongest magnetic field ever created was via field coil.as to whether different magnets sound different or by definition the strongest magnet type is best I'll a... | |
| Lyra Atlas SL Cartridge Magnet type?? daveyf Platinum magents are a thing and not some marketing gimmick. The Lyra Parnassus famously used this type of magnet and in order to get an Olympos beyond the original run of 10pc, a Parnassus donor was required for the magnet.dave | |
| Cartridge loading who is this "palmer" and can someone point me to the relevant posts of his regarding this subject?dave | |
| Cartridge loading Alas this article is not available online but if you go to the IAR website it states Issue #5 can be purchased. I got my copies off of Ebay when I was pointed to the topic.I said in proper design it is obviously possible to reach a neutral balanc... | |
| Cartridge loading Ok, so if by tracking problems at HF you mean attenuated HF then I agree. But this behavior applies to any damping, also purely mechanical, not only to electromagnetic.The first thing Moncrief does in his article is to do a frequency plot of the c... | |
| Cartridge loading Hey Ralph,this is where we got last time we had this discussion. Quite simply it does not need to! Audio energy can cause the excitation. A resonant circuit can be driven into excitation with a single pulse; it should be no surprise that on-going ... | |
| Cartridge loading I’m much more intrigued by @intactaudio dave’s observations of lowering the IMD. Have you tried plotting the IMD vs. R dependence?not yet. coming up with a concept for a test methodology to do this is not an easy task and then bringing that conce... |