Nagaoka NMP355 78rpm Mono Stylus for Cartridge ( MP )

Product no.: NMP3.5

Nagaoka NMP355 78rpm Mono Stylus for Cartridge ( MP )
£109.00
Price includes VAT, plus delivery
NAGAOKA 3.5 MIL ( 88.9mu ) STYLUS FOR 78 RPM
 
The Nagaoka 3.0 mil stylus is designed for 78RPM.
 
The stylus is used in the following Nagaoka phono cartridges: MP Series 
 
MP-10 MP10, MP-11 MP11, MP-15 MP15, MP-20 MP20, MP-30 MP30, MP-50 MP50, MP-100 MP100, MP-110 MP110, MP-150 MP150, MP-200 MP200, MP-300 MP300, and MP-500 MP500.
 
To maintain the playback fidelity of your mono record you really need to use a stylus designed for mono records. The 3.0 mil mono stylus is the standard for mono records. A very common misconception is that you can use a LP stylus for playing mono records and obtain remarkable results. You cannot because the LP stylus is narrower than the 1.0 mil mono record groove, hence the tip will slide to the bottom of the groove where debris has collected for many decades. A LP stylus will also slide side to side and will not trace the grooves properly. The use of a LP stylus will thus result in poor sound quality and extraordinarily high surface noise.
 
The generally accepted tip radius for playback of 78 RPM records is 3.0 Mil (0,003 inch).
Due to the playback in the past of these very old records with very high stylus pressure or even
with steel needles a lot of damage has been caused to the grooves. This damage is
the cause of a lot of distortion and back-ground noise. Sometimes better results can
be achieved by playing the record either on a lower part or a higher part of the groove
which may have been damaged less than the average height. To play-back at a higher
level, use either the 3.5 mil, 4.0 mil. To playback at a lower groove level use either
the 2.0 mil, or 2.5 mil tip. When you have found the best height affix a sticker to the
record so you will know the next time which stylus tip to use for best results.
 
 

 

Nagaoka Spare Stylus Guard for MP Series MM Cartridges

 

Notes on Mono Records & Cartridges Styli

Modern Microgroove Records have a V profile Groove & Modern Mono Microgroove Re-issues 

0.7mil is Suitable for Reissue Monaural LP and a Mono LP of after 1960.
1.0mil is Suitable for the Monaural LP of a deep groove of the first press of the 1950s.
However, both styli can trace the monaural LP of all generations without a problem.
When you listen to the monaural LP of all generations, we recommend 0.7mil.
When you listen to a monaural LP of the first press of the 1950s mainly, we recommend 1.0mil.

3.0mil usually ideal for 78rpm mono records

Why Mono ?
A mono cartridge is mechanically different from a stereo cartridge.  Simply switching a stereo cartridge to mono does not work perfectly.  Despite what manufactures claim  mono switches invariably add the two channels  by simply shorting the two channels together, even very" expensive units do this.  Hiend units can  sum the two channels with extra electronics to eliminates the vertical response and improve the signal to noise by 3dB.  However even summing does not provide the ultimate, a cartridge designed for mono, with a single coil and no vertical movement reduces surface noise, vertical noise and fits the groove properly. 

Older Mono records have a U type Groove Mono/78RPM 3.0mil is the accepted norm & Steel Needles for gramophone records

other types used by collectors are 2.0/2.5/3.0/3.5/4.0/8.0 ( MIL = 1/1000th of a inch )

2.0MIL -  2.0 X 0.4 mil Elliptical diamond - worn LPs, some transcriptions.
2.5MIL  - 2.5 X 0.5 mil elliptical diamond - late unworn 78s
3.0MIL -  3.0 X 0.5 mil elliptical diamond - most 1905 to 1940's, slightly worn 78s & transcriptions, & some Edison discs.
3.5MIL    3.5 X 0.8 mil elliptical diamond - old or worn 78s, transcriptions. 
4.0MIL    4.0 X 1.0 mil elliptical diamond - Edison Diamond & very old/worn discs, raw aluminium, RCA home recordings., also Pathé vertical discs
8.0MIL     8.0 mil conical sapphire - RCA home recordings, and worn Pathé vertical discs.

 

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