Valve Itch phono

[Salas]

For sure

 

[Salas]

Shure says 400-500pF. BTW I don't used square waves to listen the Shure, I used Dire Straits 180gr Love Over Gold LP

When it sounds good end of story

 

[merlin el mago]

220pF Ekos cable + 60-70pF input capacitance of Itch = 290pF maximum, still margin to play with the input capacitance load.

N.B. Square waves only used to measure the Jensen step-up transformers!!!!

 

[merlin el mago]

For sure

NO for Shure

 

[merlin el mago]

When it sounds good end of story

What do you think to use wooden body for the cartridge, increase SQ or only is Art Deco?

 

[merlin el mago]

Wooden bodies

ru25vld | eBay

 

[merlin el mago]

Wooden materials:

Ebony
Caoba
Birch
Snake Wood
Cocobolo
Mahogani
Walnut
Bubinga
Pearwood
Oak

????

 

[Salas]

I know for Denons is surely good. I also know that Ebony is most inert. But I have never experienced wooden shell mod with Shure so to tell you for sure

 

[merlin el mago]

Yes I know for Denons is good because effective mass tonearm increases. I asked the weight to seller it's app. 3gr (+/-1gr), also the distance of separated holes are Standard 1/2'' - 12.7mm, if ebony is the most inert will be my first choice I also like the ebony aspect.

 

[merlin el mago]

Salas changed all the resistors according Rev1.2, to measure 1mA across 6N2P-EV is voltage across R3 or R2? to measure 6mA across 6SN7 is voltage across R11 or R10? It's correct to use only one R13 for both GND outputs?

 

[merlin el mago]

I know for Denons is surely good. I also know that Ebony is most inert. But I have never experienced wooden shell mod with Shure so to tell you for sure

Ordered Ebony

 

[Salas]

Salas changed all the resistors according Rev1.2, to measure 1mA across 6N2P-EV is voltage across R3 or R2? to measure 6mA across 6SN7 is voltage across R11 or R10? It's correct to use only one R13 for both GND outputs?

Across R2 and R10 is better because easier for DMM scale. Those 1mA & 6mA are approximate. Ball park indications. Use only individual R13s for each channel output. 1 Meg is good too. Those are to keep the output coupling capacitors always referred to ground. Some don't use any but using is better for pops when connecting / disconnecting RCAs.

 

[Salas]

Ordered Ebony

Nice. Happy to know if it helped and to see photo. Surely looks like more serious Shure when in ebony.

 

[merlin el mago]

Thanks Salas, sure I will post pic with ebony body.

What's the best MM SQ you know?

 

[merlin el mago]

I feel the 2 dBs more. I have curiosity why 750pF more for RIAA capacitor?

 

[Salas]

"Curve is +/- 0.2dB 100Hz-15kHz including the SUT aberrations" I had wrote back then. Means the curve was checked for V1.2 plus it sounded good on HF too. But this was through MC with Dynavector SUT + my bench gear accuracy + my Hi-Fi system subjectives as comprised at the time. If you feel in your Hi-Fi with your Shure MM directly connected it needs little more bright or dull change the value a little.

 

[Salas]

Thanks Salas, sure I will post pic with ebony body.

What's the best MM SQ you know?

From old years it was Stanton 881S that I had & Shure IV that a friend had but lasting impression was a Technics EPC-100 that I had listened once at a record collector's house when I was 18 yrs.

From new years Ortofon 2M Black AT 150MLX Nagaoka MP500

 

[merlin el mago]

The new ones are the the same or high SQ like the Shure V15?
I know you told me, only to be sure: Increase capacitance less bright or if decrease capacitance more bright?

 

[Salas]

Yes you remember well about RIAA HF capacitor manipulation

Difficult question about SQ comparison on memory with so many years and rest of systems evolution in-between

 

[merlin el mago]

Thanks to share your impressions Salas, there is no original Shure replacement for VN35E, there is general consensus the Jico SAS is the best (boron cantilever & octahedron) but at $300 the needle, also Jico made shibata & hiper elliptical. I doubt to get a replacement between the shibata and the hiper elliptical I know on papers shibata is better but I didn't compared, what do you think?

BTW VTA of this beast is very low 15º