Yes, the GE VR22. Wonderful cartridge for 78s. I still use the one I had in
junior high! Plus a couple others.
Your analysis is I think mostly correct. The arm however may be more
critical than you say. Modern arms are not built to withstand the powerful
shaking that comes with 78s, not to mention that the GE is an
ultra-low-compliance design and transfers much (if not all) of its residual
mechanical energy to the arm. This situation might also cause some of the
sonic problems you hear.
I also have some Fairchilds (#220 IIRC) formerly much used in radio
broadcast studios, but they don't seem to do the trick.
Finally I don't load the GEs with 47K, but rather feed them straight into
the first stage of the preamp (a Dynaco here).
What John Haley writes sounds plausible, but can also be solved (ahem!)
digitally. But we don't want that, do we?
On Sun, Apr 15, 2018 at 3:44 PM, Mickey Clark <[log in to unmask]> wrote:
> The problem with vinyl is cartridge inadequacies
> One major reason for my preference for 78s is the presence.
> I can only achieve the quality that I strive for by playing a 78 slow.
> What I hear when playing a stereo record is a sense of lack of mid-range
> texture. I use a Shure M97 cartridge for slow dub 78s only. I find that
> the sound is compressed when I play a 78 at full speed. This is due, I
> believe to the flexing of the cantilever assembly in the cartridge. Less
> so than an M44 which has a thicker and thus more rigid cantilever. On a 33
> 1/3 I hear sibilants popping out at you with a washed-out quality of
> mid-range. The location of the pick-up in many stereo cartridges is inside
> the body of the cartridge. The vibrations relayed by the cantilever are
> accurate for bass - i.e. the stylus can reach the peak of a wave form
> without flexing because there is adequate time for it to achieve this. high
> frequencies are far smaller and can be tracked adequately as well.
> The problem is the mid-range frequencies - a cantilever assembly will flex
> slightly, not reaching the full amplitude of the wave form. In the case of
> a tuba, you will tend to hear the fundamental of the note which will
> overpower the overtones which give the sound more character.
> The General Electric VR22 - Golden Classic - variable reluctance
> cartridges address this issue by working in an entirely different manner.
> The magnet is on the very tip of the cantilever . The relationship of the
> magnet with the two metal nodes that protrude from the cartridge induces
> magnetic fluctuations which are picked up by two coils within the body of
> the cartridge. The cantilever in this design is only a ground in the
> circuit and does not need to be rigid in order to perform it's function.
> As I was curious about this cartridge, I found a new-old stock 1960 Golden
> Classic which I have mounted on a ca. 1935 Micro transcription turntable
> with a professional Audax tone arm.
> The following link is to comparative samples of Renata Tebaldi singing Un
> Bel Di from London issue of Madame Butterfly. Original sample rate
> 96,000/24 resampled to 44,100/16. I ran a very low dehum filter to both and
> maximized the levels for comparison (so at least the peaks are in line with
> each other. As I expected, the GE golden classic retains more of the breath
> of the voice and the strings have more presence.
> I prefer the 58 year old cartridge on the 85 year old Micro(later McCurdy)
> to the Shure on a Technics SP-15 -Mickey
> -----Original Message----- From: Lou Judson
> Sent: Sunday, April 15, 2018 9:07 AM
> To: [log in to unmask]
> Subject: Re: [ARSCLIST] "High Def vinyl?"
> It in’t so surprising to me that it is sourced from digital - there is no
> economical way to record analog any more - the question is, has it been
> damaged by poor digital practices?
> Lou Judson
> Intuitive Audio
> On Apr 14, 2018, at 8:14 PM, Corey Bailey <[log in to unmask]> wrote:
> From digital to analog.
>> Verrry Interrresting!
>> Corey Bailey Audio Engineering
>> On 4/14/2018 4:37 PM, John Haley wrote:
>>> Ah, Lou. Almost the same analogy I made, before seeing your email.
>>> John Haley
>>> On Sat, Apr 14, 2018 at 7:27 PM, Lou Judson <[log in to unmask]> wrote:
>>> Verrrry Interrresting as Arte Johnson used to say: <
>>>> But will it be playable? They say so, but the proof is in the playing…
>>>> still suseptible to dust, scratches, clicks and pops!