intactaudio

Responses from intactaudio

Cartridge loading
Mijostyn,The Hagerman site gives loading examples for what appear to be a typical MM cartridge where the resonances being damped are just outside the audio band.  This discussion has been about MC cartridges where the resonance in question is typi... 
Cartridge loading
Syntax,you mention cartridges sound purest into 47K and dull into larger loads and if your phono stage isn't up to it you are in trouble.  Mocrief suggests (and then supports with data) that the "dull" sound reported from loading a cartridge is si... 
Cartridge loading
I agree that the load effecting the compliance is a plausible explanation for part of what is happening with loading but when it comes to "work" and tracing high frequencies the water becomes a bit more muddled.   It seems that moncrief pretty cle... 
Cartridge loading
I did repeat the experiment with a completely different setup and my results paralleled Moncrief's.   I would expect different absolute results with different tonearm / cartridge combos.  I did see a pattern of behavior that was consistent with bo... 
Cartridge loading
There is an interesting article in IAR #5 by Peter Moncrief titled "Audio Fallacies Exposed  Low Impedance Loads for MC Cartridges" about loading and he proposes that loading down a cartridge helps it keep better contact with the grove. Moncrief a... 
NAGATRON HV9100
what needs to be repaired on it?  I have one that also needs a new stylus assembly and have not gotten much past that.  It is missing the cantilever and it appears as if the suspension has "dissolved" to give no indication where / how the cantilev... 
Stylus-Drag..Fact or Fiction?
the time constant of the timeline is so long in relation to the music it can only show general speed and your experiments seem to show that stylus drag does indeed slow the platter.  It is interesting that the TT-81 seems to correct for this "auto... 
Phono Cart Impedance Question
If I had to guess, the broadband hiss is from a noisy tube gain stage and since it changes with volume setting tubes would be a good place to look. Check to see if the noise is the same type / level in both channels and if there are differences sw... 
Advice on SUT for Koetsu Rosewood - EAR MC-4, Slagle/EMIA, other
Hey Tom,Transformer "misbehavior" (ringing etc) is a function of source and load values.  With a known source (cartridge impedance) and load (47K+||100pf) the transformer can be wound such that it gives the desired behavior.  This is a completely ... 
Advice on SUT for Koetsu Rosewood - EAR MC-4, Slagle/EMIA, other
The K&K link does not "back" what Ralph says.  Ralph states (correctly) that for any given source there is one load that will make the transformer act in the manner for which it was designed.  The K&K link assumes the transformer to be a p... 
Advice on SUT for Koetsu Rosewood - EAR MC-4, Slagle/EMIA, other
That's a bit of a surprise- your response on AudioAsylum lead me to believe otherwise. I can point you to a number of other examples should you need more proof.I think we are missing each other on a few of these things.  I have no doubt that assum... 
Advice on SUT for Koetsu Rosewood - EAR MC-4, Slagle/EMIA, other
Dave didn't believe me when I commented on AudioAsylum some years back that interwinding capacitive coupling is affected by loading, and thus to get flat frequency response loading is a pretty important aspect of transformer use.I still don't beli... 
Advice on SUT for Koetsu Rosewood - EAR MC-4, Slagle/EMIA, other
Indeed the 47K is there for MM inputs to properly load a MM cartridge. The 47K value is not a liability for an active MC stage but when the turns ratio of a SUT is considered things change. The 47K value reflects to the Cartridge as 47K/Turns rati... 
Advice on SUT for Koetsu Rosewood - EAR MC-4, Slagle/EMIA, other
Over a decade ago I made the below linked post and still stand by it 100% today.https://forum.audiogon.com/discussions/thoughts-on-cartridge-loading-with-a-sut?highlight=intractaudiohttp:// Some basic takeaways I have found.-Loading the secondary ... 
Mono Reissues and the Conical Stylus
The warning against playing a stereo record with a mono cartridge stems from the fact that the early mono cartridges didn't have or need any vertical compliance.  The lack of vertical movement effectively chews up any vertical modulation found in ...