Fidelity Research cartridges

@halcro Vinyl Engine info is not relevant, simply because the data for the first FR-7 and second FR-7F mixed up. In their wrong database FR-7 for some reason has Line Contact 0.3 x 3mil, but the next to it FR-7F has Spherical 0.65mil which is not true at least for the first FR-7 from 1978.
  
Axel just glued a new Line Contact stylus on original cantilever ? 

@nandric You said Axel is retired, do you mean retired from re-tipping business now ? 

@rauliruegas All i know is that FR-7F has square shank nude diamond of 0.15mm cross section, but i don't know the size of the tip. It would be nice to find out relevant info about it (original manual for example). 

Many times i saw them for sale and each time sellers claimed line contact for FR-7F. 

Dear @chakster : The only conical stylus tip shape in that FR series is the the 7F/c all the other came with line contact. FR never used ellipthical shape in that cartridge series.

The way you are reasearching about seem to as if the matters be " dead or live ". Anyway you have the answer.

Regards and enjoy the MUSIC NOT DISTORTIONS;
R.

@nandric sad news about Axel, hope he’ll be ok

@rauliruegas exactly ("dead of alive", i like that), i have sold some very rare records to cover my expenses on those god damn cartridges, because so many people swear they are so good and i need to hear it myself.

The next quest is phono stage for them, still got my ZYX Pre-Preamp CPP-1 (headamp), but it was designed for 0.24 mV ZYX.

My Lundahl transformers in my WLM Phonata Reference MM/MC phono stage are not designed to handge so low output (but maybe i can just replace the transformers inside this stage myself). This product disappeared from the market before it was widely released, i got demo unit from the first run, because the WLM (Wien Loudspeaker Manufaktur) closed their business.

And my newest JLTi phono stage with high gain can handle 0.22mV but probably still need more gain for carts like Ortofon MC2000, FR-7f and Fidelity-Reasearch PMC-3. Maybe Joe Rassmusen of JLTi can modify his phono stage for more gain option...

just to give the former Nandric FR7F cartridge an ongoing history..., this cart is now playing (as part of my collection) on various Micro Seiki turntables, currently fitted into an Fr64s silver arm on a SX 8000 MKII turntable.   The second arm on the turntable is an Ikeda 407. Standard cartridge is the Ikeda 9 TS .
After having used the Ikeda KAI, I stayed with the 9TS to continue my search for the best cart in FR64s or the Ikeda 407.
Today I fitted a Koetsu Onyx Platinum into the Ikeda 407.(Yamamoto Titanium headshell and Titanium screws, Dereneville head shell mat and Ortofon LW 800s head shell wire)
I have to say, this Koetsu Onyx platinum is a really nice one :-)
Looking forward to try it out in the FR64s.
Juergen


phonopre: Kondo M7 / SPZ, Thoeress 
Pre: Air Tight ATE 2001amp: Air Tight ATM 211
speakers: Zingari Client Name Evo 1.5