Odd tone arm ...
 

Anyone come across a tonearm with a single pivot point rather than the
normal four pivot gimbal ? I have a Thorens TD160 Mk II on the bench that
has come in to have the owner's 'soldered with a hot poker' cartridge
connections corrected. It appears not to be the original tonearm that's
fitted, which was a standard fully mounted type according to the user and
service manuals. This arm is a slim black skeleton, and it just seems to
rest on a single spike sticking up from the mounting plate. If it wasn't for
the wires, you'd be able to lift it right off the deck. There is a fishing
line-hung LBC weight on the left, and the tracking counterbalance weight, as
well as being adjustable fore and aft to set the tracking force, is also
mounted eccentrically, so that it can be rotated to negate any off-axis
force, such as from the LBC weight, which would try to rotate the arm about
its long axis.

I have never seen a single bearing arm like this before, and it doesn't have
any name on it at all. Anyone know what it is ?

Arfa

Odd tone arm ...
 

"Arfa Daily"
Anyone come across a tonearm with a single pivot point rather than the
normal four pivot gimbal ? I have a Thorens TD160 Mk II on the bench that
has come in to have the owner's 'soldered with a hot poker' cartridge
connections corrected. It appears not to be the original tonearm that's
fitted, which was a standard fully mounted type according to the user and
service manuals. This arm is a slim black skeleton, and it just seems to
rest on a single spike sticking up from the mounting plate. If it wasn't
for the wires, you'd be able to lift it right off the deck. There is a
fishing line-hung LBC weight on the left, and the tracking counterbalance
weight, as well as being adjustable fore and aft to set the tracking
force, is also mounted eccentrically, so that it can be rotated to negate
any off-axis force, such as from the LBC weight, which would try to rotate
the arm about its long axis.

I have never seen a single bearing arm like this before, and it doesn't
have any name on it at all. Anyone know what it is ?


** You have described a black version of one of these - a " Formula 4"

http://soundup.ru/images/stories/arc...-tonearm-2.jpg

http://soundup.ru/index.php?option=c...s&directory=15

Sold under various brands names in the 1970s.

The pivot is oil damped and they are fiddly to set up and use - but the
performance was second to none, particularly with a Shure V15 mk3 or mk4 up
front.

Not all examples had the sliding weight in the middle.


.... Phil

Odd tone arm ...
 

"Phil Allison" wrote in message
...

"Arfa Daily"
Anyone come across a tonearm with a single pivot point rather than the
normal four pivot gimbal ? I have a Thorens TD160 Mk II on the bench
that has come in to have the owner's 'soldered with a hot poker'
cartridge connections corrected. It appears not to be the original
tonearm that's fitted, which was a standard fully mounted type according
to the user and service manuals. This arm is a slim black skeleton, and
it just seems to rest on a single spike sticking up from the mounting
plate. If it wasn't for the wires, you'd be able to lift it right off
the deck. There is a fishing line-hung LBC weight on the left, and the
tracking counterbalance weight, as well as being adjustable fore and aft
to set the tracking force, is also mounted eccentrically, so that it can
be rotated to negate any off-axis force, such as from the LBC weight,
which would try to rotate the arm about its long axis.

I have never seen a single bearing arm like this before, and it doesn't
have any name on it at all. Anyone know what it is ?


** You have described a black version of one of these - a " Formula 4"

http://soundup.ru/images/stories/arc...-tonearm-2.jpg

http://soundup.ru/index.php?option=c...s&directory=15

Sold under various brands names in the 1970s.

The pivot is oil damped and they are fiddly to set up and use - but the
performance was second to none, particularly with a Shure V15 mk3 or mk4
up front.

Not all examples had the sliding weight in the middle.


Or one of a multitude of other tonearms......
https://www.google.co.uk/search?q=unipivot+tonearm

D

Odd tone arm ...
 

"David Bull****ter "

Or one of a multitude of other tonearms......
https://www.google.co.uk/search?q=unipivot+tonearm


** Try learning to read - ****head.

The OP described a Formula 4 arm in detail.



..... Phil

Odd tone arm ...
 

In article , Arfa Daily
wrote:
Anyone come across a tonearm with a single pivot point rather than the
normal four pivot gimbal ? I have a Thorens TD160 Mk II on the bench
that has come in to have the owner's 'soldered with a hot poker'
cartridge connections corrected. It appears not to be the original
tonearm that's fitted, which was a standard fully mounted type
according to the user and service manuals. This arm is a slim black
skeleton, and it just seems to rest on a single spike sticking up from
the mounting plate. If it wasn't for the wires, you'd be able to lift
it right off the deck. There is a fishing line-hung LBC weight on the
left, and the tracking counterbalance weight, as well as being
adjustable fore and aft to set the tracking force, is also mounted
eccentrically, so that it can be rotated to negate any off-axis force,
such as from the LBC weight, which would try to rotate the arm about
its long axis.

I have never seen a single bearing arm like this before, and it doesn't
have any name on it at all. Anyone know what it is ?

Can't help with the arm, but weren't Thorens decks available on their own
so you could bit the arm of your choice? My 150 was - it's got an SME.

--
*Virtual reality is its own reward *

Dave Plowman London SW
To e-mail, change noise into sound.

Odd tone arm ...
 

"Phil Allison" wrote in message
...

"Arfa Daily"
Anyone come across a tonearm with a single pivot point rather than the
normal four pivot gimbal ? I have a Thorens TD160 Mk II on the bench
that has come in to have the owner's 'soldered with a hot poker'
cartridge connections corrected. It appears not to be the original
tonearm that's fitted, which was a standard fully mounted type according
to the user and service manuals. This arm is a slim black skeleton, and
it just seems to rest on a single spike sticking up from the mounting
plate. If it wasn't for the wires, you'd be able to lift it right off the
deck. There is a fishing line-hung LBC weight on the left, and the
tracking counterbalance weight, as well as being adjustable fore and aft
to set the tracking force, is also mounted eccentrically, so that it can
be rotated to negate any off-axis force, such as from the LBC weight,
which would try to rotate the arm about its long axis.

I have never seen a single bearing arm like this before, and it doesn't
have any name on it at all. Anyone know what it is ?


** You have described a black version of one of these - a " Formula 4"

http://soundup.ru/images/stories/arc...-tonearm-2.jpg

http://soundup.ru/index.php?option=c...s&directory=15

Sold under various brands names in the 1970s.

The pivot is oil damped and they are fiddly to set up and use - but the
performance was second to none, particularly with a Shure V15 mk3 or mk4
up front.

Not all examples had the sliding weight in the middle.


... Phil


Not exact, but fairly similar. There appears to be no facility for any oil
damping anywhere. The arm appears to sit very simply on a spike sticking up
from the mount. A bit like the kid's playground 'witch's hat' type
roundabout. The one in those pictures looks rather more 'robust' than this
thing. With it set up to be as level as you can see, it seems to work well.
It is indeed fitted with a Sure cartridge.

Arfa

Odd tone arm ...
 

"Dave Plowman (News)" wrote in message
...
In article , Arfa Daily
wrote:
Anyone come across a tonearm with a single pivot point rather than the
normal four pivot gimbal ? I have a Thorens TD160 Mk II on the bench
that has come in to have the owner's 'soldered with a hot poker'
cartridge connections corrected. It appears not to be the original
tonearm that's fitted, which was a standard fully mounted type
according to the user and service manuals. This arm is a slim black
skeleton, and it just seems to rest on a single spike sticking up from
the mounting plate. If it wasn't for the wires, you'd be able to lift
it right off the deck. There is a fishing line-hung LBC weight on the
left, and the tracking counterbalance weight, as well as being
adjustable fore and aft to set the tracking force, is also mounted
eccentrically, so that it can be rotated to negate any off-axis force,
such as from the LBC weight, which would try to rotate the arm about
its long axis.

I have never seen a single bearing arm like this before, and it doesn't
have any name on it at all. Anyone know what it is ?

Can't help with the arm, but weren't Thorens decks available on their own
so you could bit the arm of your choice? My 150 was - it's got an SME.

--

Dave Plowman London SW

Possibly, Dave. However, for this model, all the paperwork I've been able to
find indicates that it was a 'complete' deck. I've seen other 'single pivot'
tone arms along the lines of the Dust Bug, but obviously more elaborate. I
just hadn't seen this particular type where the arm just rests on top of a
spike, apparently more by luck than judgment ... There are no adjustments of
any kind at the pivot point. It's just a spike, and a hole with presumably a
conical bearing face deep inside that hole. I suppose that it's about the
smallest friction suspension that you could achieve, and it's certainly
quite elegant in its design and concept, but a bit of a sod to work on if
you have to turn the base over to get at the screened output wires, as it's
very hard to devise a way to stop it just falling off, and then it would be
hanging just by the thin wires that come down the arm ...

Arfa
To e-mail, change noise into sound.

Odd tone arm ...
 

In article ,
Arfa Daily wrote:
Can't help with the arm, but weren't Thorens decks available on their
own so you could bit the arm of your choice? My 150 was - it's got an
SME.

Possibly, Dave. However, for this model, all the paperwork I've been
able to find indicates that it was a 'complete' deck.

Think most Thorens decks fitted with a factory arm had a raise/lower knob
on the opposite corner to the off/on one. If there is no sign of that it
was likely supplied as a deck only. If the knob is still there - or a hole
etc - likely supplied with arm and converted later.

--
*Nostalgia isn't what is used to be.

Dave Plowman London SW
To e-mail, change noise into sound.

Odd tone arm ...
 

"Phil Allison" wrote in message
...

"David Bull****ter "

Or one of a multitude of other tonearms......
https://www.google.co.uk/search?q=unipivot+tonearm


** Try learning to read - ****head.

The OP described a Formula 4 arm in detail.


Phil,
Thank you for your kind words.

Arfa,
So Phil was spot on was he?
Any chance of a photo?

D

Odd tone arm ...
 

"David Bull****ter "

Or one of a multitude of other tonearms......
https://www.google.co.uk/search?q=unipivot+tonearm


** Try learning to read - ****head.

The OP described a Formula 4 arm in detail.


Phil,
Thank you for your kind words.


** **** you.

Odd tone arm ...
 

"David B" wrote in message
...
"Phil Allison" wrote in message
...

"Arfa Daily"
Anyone come across a tonearm with a single pivot point rather than the
normal four pivot gimbal ? I have a Thorens TD160 Mk II on the bench
that has come in to have the owner's 'soldered with a hot poker'
cartridge connections corrected. It appears not to be the original
tonearm that's fitted, which was a standard fully mounted type
according to the user and service manuals. This arm is a slim black
skeleton, and it just seems to rest on a single spike sticking up from
the mounting plate. If it wasn't for the wires, you'd be able to lift
it right off the deck. There is a fishing line-hung LBC weight on the
left, and the tracking counterbalance weight, as well as being
adjustable fore and aft to set the tracking force, is also mounted
eccentrically, so that it can be rotated to negate any off-axis force,
such as from the LBC weight, which would try to rotate the arm about
its long axis.

I have never seen a single bearing arm like this before, and it doesn't
have any name on it at all. Anyone know what it is ?


** You have described a black version of one of these - a " Formula 4"

http://soundup.ru/images/stories/arc...-tonearm-2.jpg

http://soundup.ru/index.php?option=c...s&directory=15

Sold under various brands names in the 1970s.

The pivot is oil damped and they are fiddly to set up and use - but the
performance was second to none, particularly with a Shure V15 mk3 or mk4
up front.

Not all examples had the sliding weight in the middle.


Or one of a multitude of other tonearms......
https://www.google.co.uk/search?q=unipivot+tonearm

The images option seems to be more helpful:

https://www.google.co.uk/search?q=un...&bih=859&dpr=1

Odd tone arm ...
 

On 19/09/2013 10:53 AM, Arfa Daily wrote:
Anyone come across a tonearm with a single pivot point rather than the
normal four pivot gimbal ? I have a Thorens TD160 Mk II on the bench
that has come in to have the owner's 'soldered with a hot poker'
cartridge connections corrected. It appears not to be the original
tonearm that's fitted, which was a standard fully mounted type according
to the user and service manuals. This arm is a slim black skeleton, and
it just seems to rest on a single spike sticking up from the mounting
plate. If it wasn't for the wires, you'd be able to lift it right off
the deck. There is a fishing line-hung LBC weight on the left, and the
tracking counterbalance weight, as well as being adjustable fore and aft
to set the tracking force, is also mounted eccentrically, so that it can
be rotated to negate any off-axis force, such as from the LBC weight,
which would try to rotate the arm about its long axis.

I have never seen a single bearing arm like this before, and it doesn't
have any name on it at all. Anyone know what it is ?

Arfa

**It is called a 'unipivot' arm. Whilst they have their charms, I hate
the buggers. Almost impossible to maintain accurate zenith. They are
very low friction though and quite good for many MM carts. MC carts
should NEVER be used with any unipivot arm.

--
Trevor Wilson www.rageaudio.com.au

Odd tone arm ...
 

On 19/09/2013 21:58, Trevor Wilson wrote:


MC carts should NEVER be used

Very true. :-)

--
Eiron.

Odd tone arm ...
 

"Eiron"

Trevor Wilson wrote:

MC carts should NEVER be used

Very true. :-)


** What you have to understand is that with some MC cartridges - it's the
tone arm the vibrates not the stylus.

But none of them can touch the Decca London for pure ability to permanently
remove vertical modulation from a grove.

A real groove straightener.


..... Phil

Odd tone arm ...
 

"Phil Allison" wrote in message ...


"Arfa Daily"
Anyone come across a tonearm with a single pivot point rather than the
normal four pivot gimbal ? I have a Thorens TD160 Mk II on the bench that
has come in to have the owner's 'soldered with a hot poker' cartridge
connections corrected. It appears not to be the original tonearm that's
fitted, which was a standard fully mounted type according to the user and
service manuals. This arm is a slim black skeleton, and it just seems to
rest on a single spike sticking up from the mounting plate. If it wasn't
for the wires, you'd be able to lift it right off the deck. There is a
fishing line-hung LBC weight on the left, and the tracking counterbalance
weight, as well as being adjustable fore and aft to set the tracking
force, is also mounted eccentrically, so that it can be rotated to negate
any off-axis force, such as from the LBC weight, which would try to rotate
the arm about its long axis.

I have never seen a single bearing arm like this before, and it doesn't
have any name on it at all. Anyone know what it is ?


** You have described a black version of one of these - a " Formula 4"

http://soundup.ru/images/stories/arc...-tonearm-2.jpg

http://soundup.ru/index.php?option=c...s&directory=15

Sold under various brands names in the 1970s.

The pivot is oil damped and they are fiddly to set up and use - but the
performance was second to none, particularly with a Shure V15 mk3 or mk4 up
front.

Not all examples had the sliding weight in the middle.


.... Phil

I remember Hadcock also made/sold a unipivot arm, although this may have
been a badge-engineered Mayware Formula 4 in view of Phil's comments.

Geoff Mackenzie

Odd tone arm ...
 

"Geoff Mackenzie"
"Phil Allison"
"Arfa Daily"

I have never seen a single bearing arm like this before, and it doesn't
have any name on it at all. Anyone know what it is ?


** You have described a black version of one of these - a " Formula 4"

http://soundup.ru/images/stories/arc...-tonearm-2.jpg

http://soundup.ru/index.php?option=c...s&directory=15

Sold under various brands names in the 1970s.

The pivot is oil damped and they are fiddly to set up and use - but the
performance was second to none, particularly with a Shure V15 mk3 or mk4
up
front.

Not all examples had the sliding weight in the middle.


I remember Hadcock also made/sold a unipivot arm, although this may have
been a badge-engineered Mayware Formula 4 in view of Phil's comments.


** Nope.

This is pic of a Hadcock GH228 Super:

http://www.vinylengine.com/turntable...image_id=10717

May well be the very one the AD is on about.

And look what is sitting on the end .....



.... Phil

Odd tone arm ...
 

In article , Eiron
wrote:
On 19/09/2013 21:58, Trevor Wilson wrote:


MC carts should NEVER be used

Very true. :-)

AOL Me too. :-)

Jim

--
Please use the address on the audiomisc page if you wish to email me.
Electronics http://www.st-and.ac.uk/~www_pa/Scot...o/electron.htm
Armstrong Audio http://www.audiomisc.co.uk/Armstrong/armstrong.html
Audio Misc http://www.audiomisc.co.uk/index.html

Odd tone arm ...
 

In article ,
Bob Latham wrote:
In article ,
Jim Lesurf wrote:
In article , Eiron
wrote:
On 19/09/2013 21:58, Trevor Wilson wrote:

MC carts should NEVER be used

Very true. :-)

AOL Me too. :-)

OK, so what if you happen to think MCs sound much nicer?


Quite.

MM is for those who only read specs. ;-)

--
*If tennis elbow is painful, imagine suffering with tennis balls *

Dave Plowman London SW
To e-mail, change noise into sound.

Odd tone arm ...
 

In article , Bob Latham
wrote:
In article , Jim Lesurf
wrote:
In article , Eiron
wrote:
On 19/09/2013 21:58, Trevor Wilson wrote:

MC carts should NEVER be used

Very true. :-)

AOL Me too. :-)

OK, so what if you happen to think MCs sound much nicer?

Use one. :-) ...but not with an ultra-low mass arm unless you hate bass
notes.

Slainte,

Jim

--
Please use the address on the audiomisc page if you wish to email me.
Electronics http://www.st-and.ac.uk/~www_pa/Scot...o/electron.htm
Armstrong Audio http://www.audiomisc.co.uk/Armstrong/armstrong.html
Audio Misc http://www.audiomisc.co.uk/index.html

Odd tone arm ...
 

In article , Dave Plowman (News)
wrote:
In article , Bob Latham
wrote:
In article , Jim Lesurf
wrote:
In article , Eiron
wrote:
On 19/09/2013 21:58, Trevor Wilson wrote:

MC carts should NEVER be used

Very true. :-)

AOL Me too. :-)

OK, so what if you happen to think MCs sound much nicer?


Quite.

MM is for those who only read specs. ;-)

I can't read without my specs. Although I do take them off when listening
to music. :-)

Jim

--
Please use the address on the audiomisc page if you wish to email me.
Electronics http://www.st-and.ac.uk/~www_pa/Scot...o/electron.htm
Armstrong Audio http://www.audiomisc.co.uk/Armstrong/armstrong.html
Audio Misc http://www.audiomisc.co.uk/index.html

Odd tone arm ...
 

"Bob Latham" wrote in message
...
In article ,
Jim Lesurf wrote:
In article , Eiron
wrote:
On 19/09/2013 21:58, Trevor Wilson wrote:

MC carts should NEVER be used

Very true. :-)

AOL Me too. :-)

OK, so what if you happen to think MCs sound much nicer?

Get a parametric equalizer that gives you the same kind of frequency
response rise at the high end.

Odd tone arm ...
 

In article ,
Jim Lesurf wrote:
OK, so what if you happen to think MCs sound much nicer?

Use one. :-) ...but not with an ultra-low mass arm unless you hate bass
notes.

My SME is damped. Seems to track just fine. But it's a MKII so not ultra
low mass.

--
*El nino made me do it

Dave Plowman London SW
To e-mail, change noise into sound.

Odd tone arm ...
 

In article , Arny
Krueger
wrote:

"Bob Latham" wrote in message
...
In article , Jim Lesurf
wrote:
In article , Eiron
wrote:
On 19/09/2013 21:58, Trevor Wilson wrote:

MC carts should NEVER be used

Very true. :-)

AOL Me too. :-)

OK, so what if you happen to think MCs sound much nicer?

Get a parametric equalizer that gives you the same kind of frequency
response rise at the high end.

I've been intrigued to see some of the MC plots in recent reviews here as
they've taken to plotting the sum and difference rather than L and R. They
tend to show wildly different responses. Usually a big peak in the L+R and
often a *dip* in L-R at HF. Made me realise that the traditional mono or L
and R plots might be hiding some behaviour.

Slainte,

Jim

--
Please use the address on the audiomisc page if you wish to email me.
Electronics http://www.st-and.ac.uk/~www_pa/Scot...o/electron.htm
Armstrong Audio http://www.audiomisc.co.uk/Armstrong/armstrong.html
Audio Misc http://www.audiomisc.co.uk/index.html

Odd tone arm ...
 

In article , Dave Plowman (News)
wrote:
In article , Jim Lesurf
wrote:
OK, so what if you happen to think MCs sound much nicer?

Use one. :-) ...but not with an ultra-low mass arm unless you hate
bass notes.

My SME is damped. Seems to track just fine. But it's a MKII so not ultra
low mass.

Losing the low bass may well aid tracking as it lets the arm 'track' any
really LF excursions. Just that you might then not hear them. :-)

Despite which...

FWIW I've happily used the V15/III with the arm that came as part of my
Technics DD TT. The arm mass is nominally far too high. But never really
given a problem that I've noticed.

So I've never worried too much about matching arm mass with compliance.
Although with some of the ultra-low compliance MCs I think I'd be more
wary.

Slainte,

Jim

--
Please use the address on the audiomisc page if you wish to email me.
Electronics http://www.st-and.ac.uk/~www_pa/Scot...o/electron.htm
Armstrong Audio http://www.audiomisc.co.uk/Armstrong/armstrong.html
Audio Misc http://www.audiomisc.co.uk/index.html

Odd tone arm ...
 

"Jim Lesurf" wrote in message
...
In article , Dave Plowman (News)
wrote:
In article , Jim Lesurf
wrote:
OK, so what if you happen to think MCs sound much nicer?

Use one. :-) ...but not with an ultra-low mass arm unless you hate
bass notes.

My SME is damped. Seems to track just fine. But it's a MKII so not ultra
low mass.

Losing the low bass may well aid tracking as it lets the arm 'track' any
really LF excursions. Just that you might then not hear them. :-)

Despite which...

FWIW I've happily used the V15/III with the arm that came as part of my
Technics DD TT. The arm mass is nominally far too high. But never really
given a problem that I've noticed.

So I've never worried too much about matching arm mass with compliance.
Although with some of the ultra-low compliance MCs I think I'd be more
wary.

The V15 brush tends to mitigate problems with excess mass

Odd tone arm ...
 

In article , Arny
Krueger
wrote:

"Jim Lesurf" wrote in message
...


So I've never worried too much about matching arm mass with
compliance. Although with some of the ultra-low compliance MCs I think
I'd be more wary.

The V15 brush tends to mitigate problems with excess mass

Yes it would. But I've never really used it. Find it works OK without the
brush. Ditto for the somewhat poorer M97xE. (Which I'm currently using to
make a digital copy of a curio I just found in a fair. SQ 'sampler' on the
PYE lable!)

Slainte,

Jim

--
Please use the address on the audiomisc page if you wish to email me.
Electronics http://www.st-and.ac.uk/~www_pa/Scot...o/electron.htm
Armstrong Audio http://www.audiomisc.co.uk/Armstrong/armstrong.html
Audio Misc http://www.audiomisc.co.uk/index.html

Odd tone arm ...
 

On Fri, 20 Sep 2013 18:27:43 +0100, Jim Lesurf
wrote:

In article , Dave Plowman (News)
wrote:
In article , Jim Lesurf
wrote:
OK, so what if you happen to think MCs sound much nicer?

Use one. :-) ...but not with an ultra-low mass arm unless you hate
bass notes.

My SME is damped. Seems to track just fine. But it's a MKII so not ultra
low mass.

Losing the low bass may well aid tracking as it lets the arm 'track' any
really LF excursions. Just that you might then not hear them. :-)

Despite which...

FWIW I've happily used the V15/III with the arm that came as part of my
Technics DD TT. The arm mass is nominally far too high. But never really
given a problem that I've noticed.

So I've never worried too much about matching arm mass with compliance.
Although with some of the ultra-low compliance MCs I think I'd be more
wary.

I might be more worried about a high mass arm married to a high
compliance cartridge. You could find the corner frequency of that
particular highpass filter creeping down uncomfortably close to warp
speed (no, not a Star Trek reference!).

d

Odd tone arm ...
 

In article , Don Pearce
wrote:
On Fri, 20 Sep 2013 18:27:43 +0100, Jim Lesurf
wrote:

FWIW I've happily used the V15/III with the arm that came as part of my
Technics DD TT. The arm mass is nominally far too high. But never
really given a problem that I've noticed.

So I've never worried too much about matching arm mass with compliance.
Although with some of the ultra-low compliance MCs I think I'd be more
wary.

I might be more worried about a high mass arm married to a high
compliance cartridge. You could find the corner frequency of that
particular highpass filter creeping down uncomfortably close to warp
speed (no, not a Star Trek reference!).

Agreed. I was also wary at first with the arm I use. But it simply hasn't
been problem in practice. It probably means I get more 'ripple' LF
accompanying the audio, but I don't really notice it.

I did briefly try the brush method again when I started experimenting with
the (rather inferior) M97xE. But it seemed more of a faff than it was
worth. So simply clicked it 'up' and left it that way.

FWIW I use the M97 for older LPs of dubious condition to protect my aged
V15 stylii and keep the V15 for discs I know are in good condition.

Slainte,

Jim

--
Please use the address on the audiomisc page if you wish to email me.
Electronics http://www.st-and.ac.uk/~www_pa/Scot...o/electron.htm
Armstrong Audio http://www.audiomisc.co.uk/Armstrong/armstrong.html
Audio Misc http://www.audiomisc.co.uk/index.html

Odd tone arm ...
 

On Sun, 22 Sep 2013 09:37:27 +0100, Jim Lesurf
wrote:

In article , Don Pearce
wrote:
On Fri, 20 Sep 2013 18:27:43 +0100, Jim Lesurf
wrote:

FWIW I've happily used the V15/III with the arm that came as part of my
Technics DD TT. The arm mass is nominally far too high. But never
really given a problem that I've noticed.

So I've never worried too much about matching arm mass with compliance.
Although with some of the ultra-low compliance MCs I think I'd be more
wary.

I might be more worried about a high mass arm married to a high
compliance cartridge. You could find the corner frequency of that
particular highpass filter creeping down uncomfortably close to warp
speed (no, not a Star Trek reference!).

Agreed. I was also wary at first with the arm I use. But it simply hasn't
been problem in practice. It probably means I get more 'ripple' LF
accompanying the audio, but I don't really notice it.

I did briefly try the brush method again when I started experimenting with
the (rather inferior) M97xE. But it seemed more of a faff than it was
worth. So simply clicked it 'up' and left it that way.

FWIW I use the M97 for older LPs of dubious condition to protect my aged
V15 stylii and keep the V15 for discs I know are in good condition.


More of a problem with 45s, of course. But not an actual problem until
it is big enough to drive the pre-amp into limiting. No filtering it
away once that has happened.

d