• OT: diamond making machine for 200,000 dollars on alibaba

    From Jan Panteltje@21:1/5 to All on Wed Sep 11 05:36:05 2024
    Diamond making machine for 200,000 dollars on alibaba:
    https://arstechnica.com/science/2024/09/you-can-buy-a-diamond-making-machine-for-200000-on-alibaba/

    Now there is a profit opportunity:-)

    --- SoupGate-Win32 v1.05
    * Origin: fsxNet Usenet Gateway (21:1/5)
  • From Cursitor Doom@21:1/5 to Jan Panteltje on Wed Sep 11 10:21:09 2024
    On Wed, 11 Sep 2024 05:36:05 GMT, Jan Panteltje wrote:

    Diamond making machine for 200,000 dollars on alibaba:
    https://arstechnica.com/science/2024/09/you-can-buy-a-diamond-making-
    machine-for-200000-on-alibaba/

    Now there is a profit opportunity:-)

    It's amazing there's still a market for diamonds at all now this is
    possible.

    --- SoupGate-Win32 v1.05
    * Origin: fsxNet Usenet Gateway (21:1/5)
  • From Jan Panteltje@21:1/5 to Doom on Wed Sep 11 11:48:57 2024
    On a sunny day (Wed, 11 Sep 2024 10:21:09 -0000 (UTC)) it happened Cursitor Doom <cd999666@notformail.com> wrote in <vbrquk$3huor$2@dont-email.me>:

    On Wed, 11 Sep 2024 05:36:05 GMT, Jan Panteltje wrote:

    Diamond making machine for 200,000 dollars on alibaba:
    https://arstechnica.com/science/2024/09/you-can-buy-a-diamond-making- >machine-for-200000-on-alibaba/

    Now there is a profit opportunity:-)

    It's amazing there's still a market for diamonds at all now this is
    possible.

    Old record players used diamond needles, I have read vinyl is 'in' again these days
    Audiophiles will pay big money for superior sound.

    --- SoupGate-Win32 v1.05
    * Origin: fsxNet Usenet Gateway (21:1/5)
  • From Liz Tuddenham@21:1/5 to Jan Panteltje on Wed Sep 11 14:11:07 2024
    Jan Panteltje <alien@comet.invalid> wrote:

    On a sunny day (Wed, 11 Sep 2024 10:21:09 -0000 (UTC)) it happened Cursitor Doom <cd999666@notformail.com> wrote in <vbrquk$3huor$2@dont-email.me>:

    On Wed, 11 Sep 2024 05:36:05 GMT, Jan Panteltje wrote:

    Diamond making machine for 200,000 dollars on alibaba:
    https://arstechnica.com/science/2024/09/you-can-buy-a-diamond-making- >machine-for-200000-on-alibaba/

    Now there is a profit opportunity:-)

    It's amazing there's still a market for diamonds at all now this is >possible.

    Old record players used diamond needles, I have read vinyl is 'in' again these days Audiophiles will pay big money for superior sound.

    The cost of a replacement stylus is in the manufacturing, not the
    materials. There are brand-new mass-produced styli for microgroove
    records available at around 30 UKP - but I've just paid over 90 UKP for
    a specialised one for 78s. For an even more specialised L.P. profile I
    was quoted 120 UKP.


    --
    ~ Liz Tuddenham ~
    (Remove the ".invalid"s and add ".co.uk" to reply)
    www.poppyrecords.co.uk

    --- SoupGate-Win32 v1.05
    * Origin: fsxNet Usenet Gateway (21:1/5)
  • From Cursitor Doom@21:1/5 to Jan Panteltje on Wed Sep 11 16:59:15 2024
    On Wed, 11 Sep 2024 11:48:57 GMT, Jan Panteltje wrote:

    On a sunny day (Wed, 11 Sep 2024 10:21:09 -0000 (UTC)) it happened
    Cursitor Doom <cd999666@notformail.com> wrote in <vbrquk$3huor$2@dont-email.me>:

    On Wed, 11 Sep 2024 05:36:05 GMT, Jan Panteltje wrote:

    Diamond making machine for 200,000 dollars on alibaba:
    https://arstechnica.com/science/2024/09/you-can-buy-a-diamond-making- >>machine-for-200000-on-alibaba/

    Now there is a profit opportunity:-)

    It's amazing there's still a market for diamonds at all now this is >>possible.

    Old record players used diamond needles, I have read vinyl is 'in' again these days Audiophiles will pay big money for superior sound.

    They had no choice. That was back in the days when natural diamonds were
    the only game in town, De Beers controlled the price of these gems and
    only Superman could make them artificially (from lumps of coal IIRC).

    --- SoupGate-Win32 v1.05
    * Origin: fsxNet Usenet Gateway (21:1/5)
  • From Cursitor Doom@21:1/5 to Liz Tuddenham on Wed Sep 11 17:02:23 2024
    On Wed, 11 Sep 2024 14:11:07 +0100, Liz Tuddenham wrote:

    Jan Panteltje <alien@comet.invalid> wrote:

    On a sunny day (Wed, 11 Sep 2024 10:21:09 -0000 (UTC)) it happened
    Cursitor Doom <cd999666@notformail.com> wrote in
    <vbrquk$3huor$2@dont-email.me>:

    On Wed, 11 Sep 2024 05:36:05 GMT, Jan Panteltje wrote:

    Diamond making machine for 200,000 dollars on alibaba:
    https://arstechnica.com/science/2024/09/you-can-buy-a-diamond-
    making-
    machine-for-200000-on-alibaba/

    Now there is a profit opportunity:-)

    It's amazing there's still a market for diamonds at all now this is
    possible.

    Old record players used diamond needles, I have read vinyl is 'in'
    again these days Audiophiles will pay big money for superior sound.

    The cost of a replacement stylus is in the manufacturing, not the
    materials. There are brand-new mass-produced styli for microgroove
    records available at around 30 UKP - but I've just paid over 90 UKP for
    a specialised one for 78s. For an even more specialised L.P. profile I
    was quoted 120 UKP.

    Liz, can you recommend any genuinely good, high quality stylus/cartridge manufacturers in Yurp currently? Preferably English or Scandinavian?

    --- SoupGate-Win32 v1.05
    * Origin: fsxNet Usenet Gateway (21:1/5)
  • From Liz Tuddenham@21:1/5 to Cursitor Doom on Wed Sep 11 20:07:54 2024
    Cursitor Doom <cd999666@notformail.com> wrote:

    On Wed, 11 Sep 2024 14:11:07 +0100, Liz Tuddenham wrote:

    Jan Panteltje <alien@comet.invalid> wrote:

    On a sunny day (Wed, 11 Sep 2024 10:21:09 -0000 (UTC)) it happened
    Cursitor Doom <cd999666@notformail.com> wrote in
    <vbrquk$3huor$2@dont-email.me>:

    On Wed, 11 Sep 2024 05:36:05 GMT, Jan Panteltje wrote:

    Diamond making machine for 200,000 dollars on alibaba:
    https://arstechnica.com/science/2024/09/you-can-buy-a-diamond-
    making-
    machine-for-200000-on-alibaba/

    Now there is a profit opportunity:-)

    It's amazing there's still a market for diamonds at all now this is
    possible.

    Old record players used diamond needles, I have read vinyl is 'in'
    again these days Audiophiles will pay big money for superior sound.

    The cost of a replacement stylus is in the manufacturing, not the materials. There are brand-new mass-produced styli for microgroove
    records available at around 30 UKP - but I've just paid over 90 UKP for
    a specialised one for 78s. For an even more specialised L.P. profile I
    was quoted 120 UKP.

    Liz, can you recommend any genuinely good, high quality stylus/cartridge manufacturers in Yurp currently? Preferably English or Scandinavian?

    I don't really know much about the esoteric end of the L.P. market, but
    a good general-purpose workhorse would be something from the Shure 75 or
    44 range (but they are American). The person to ask is Paul Hodgson of
    Expert Stylys Co. but his prices are not cheap as the styli are made individually on the premises.

    You need to consider the sort of record you intend to play, presumably
    you are thinking of microgroove, not coarse-grooved 78s, or similar?
    For older records and those with damage, a conical stylus might pick up
    less noise than a top-of-the-range elliptical or similar. Some high-end
    styli are very fragile, so they might be damaged more easily.

    A friend who works at the very top of the transcription business uses a
    moving coil cartridge by Wilson Benesch, which is hand-made in the UK
    and claims to give the ultimate in performance. It needs a special
    pre-pre amplifier as the impedance is less than 30 ohms and the output
    voltage would be down in the noise level of a moving-magnet
    pre-amplifier. He keeps it for only the highest quality work and uses
    a Shure 44 for the 'ordinary' jobs.

    Elliptical styli will only give the best performance if they are angled correctly to the .line of the groove; despite all the hype, there is no
    radial pickup arm that achieves this, so a parallel-tracker is an
    absolute 'must' (especially if you are using some types of analogue de-clickers).


    --
    ~ Liz Tuddenham ~
    (Remove the ".invalid"s and add ".co.uk" to reply)
    www.poppyrecords.co.uk

    --- SoupGate-Win32 v1.05
    * Origin: fsxNet Usenet Gateway (21:1/5)
  • From Ralph Mowery@21:1/5 to All on Wed Sep 11 16:52:12 2024
    In article <vbsi92$3n5bv$2@dont-email.me>, cd999666@notformail.com
    says...

    Old record players used diamond needles, I have read vinyl is 'in' again these days Audiophiles will pay big money for superior sound.

    They had no choice. That was back in the days when natural diamonds were
    the only game in town, De Beers controlled the price of these gems and
    only Superman could make them artificially (from lumps of coal IIRC).




    Audiophiles will pay big money for stupid things. Best example I have
    seen is they will pay around $ 100 for about 6 feet of some special wire
    to go from the eqipment to the AC receptical. Little good that does
    when there is 20 to 50 feet of cheap copper or even aluminum cable from
    there to the breaker box and other junk cable back to the power pole.

    Not sure about the diamonds usen in the record players but industrial
    diamonds aver vey cheap. It is just the stuff they can sell to women
    that they get a large amount of money for. Had it not been for them to convience women they needed them they would still be very cheap cmpaired
    to what they are now.

    --- SoupGate-Win32 v1.05
    * Origin: fsxNet Usenet Gateway (21:1/5)
  • From Cursitor Doom@21:1/5 to Ralph Mowery on Wed Sep 11 22:04:38 2024
    On Wed, 11 Sep 2024 16:52:12 -0400, Ralph Mowery wrote:

    In article <vbsi92$3n5bv$2@dont-email.me>, cd999666@notformail.com
    says...

    Old record players used diamond needles, I have read vinyl is 'in'
    again these days Audiophiles will pay big money for superior sound.

    They had no choice. That was back in the days when natural diamonds
    were the only game in town, De Beers controlled the price of these gems
    and only Superman could make them artificially (from lumps of coal
    IIRC).




    Audiophiles will pay big money for stupid things. Best example I have
    seen is they will pay around $ 100 for about 6 feet of some special wire
    to go from the eqipment to the AC receptical. Little good that does
    when there is 20 to 50 feet of cheap copper or even aluminum cable from
    there to the breaker box and other junk cable back to the power pole.

    Very true. Likewise speaker cable. I managed to get *very* many yards of excellent low-loss 50 ohm millimetre wave coax cable at a very reasonable
    price from some audiophool who'd been using it as speaker cable. He must
    have had incredible hearing, that guy. ;->

    Not sure about the diamonds usen in the record players but industrial diamonds aver vey cheap. It is just the stuff they can sell to women
    that they get a large amount of money for. Had it not been for them to convience women they needed them they would still be very cheap cmpaired
    to what they are now.

    Also very true!

    --- SoupGate-Win32 v1.05
    * Origin: fsxNet Usenet Gateway (21:1/5)
  • From Cursitor Doom@21:1/5 to Liz Tuddenham on Wed Sep 11 22:18:07 2024
    On Wed, 11 Sep 2024 20:07:54 +0100, Liz Tuddenham wrote:

    Cursitor Doom <cd999666@notformail.com> wrote:

    On Wed, 11 Sep 2024 14:11:07 +0100, Liz Tuddenham wrote:

    Jan Panteltje <alien@comet.invalid> wrote:

    On a sunny day (Wed, 11 Sep 2024 10:21:09 -0000 (UTC)) it happened
    Cursitor Doom <cd999666@notformail.com> wrote in
    <vbrquk$3huor$2@dont-email.me>:

    On Wed, 11 Sep 2024 05:36:05 GMT, Jan Panteltje wrote:

    Diamond making machine for 200,000 dollars on alibaba:
    https://arstechnica.com/science/2024/09/you-can-buy-a-diamond-
    making-
    machine-for-200000-on-alibaba/

    Now there is a profit opportunity:-)

    It's amazing there's still a market for diamonds at all now this is
    possible.

    Old record players used diamond needles, I have read vinyl is 'in'
    again these days Audiophiles will pay big money for superior sound.

    The cost of a replacement stylus is in the manufacturing, not the
    materials. There are brand-new mass-produced styli for microgroove
    records available at around 30 UKP - but I've just paid over 90 UKP
    for a specialised one for 78s. For an even more specialised L.P.
    profile I was quoted 120 UKP.

    Liz, can you recommend any genuinely good, high quality
    stylus/cartridge manufacturers in Yurp currently? Preferably English or
    Scandinavian?

    I don't really know much about the esoteric end of the L.P. market, but
    a good general-purpose workhorse would be something from the Shure 75 or
    44 range (but they are American). The person to ask is Paul Hodgson of Expert Stylys Co. but his prices are not cheap as the styli are made individually on the premises.

    Excellent; many thanks.

    --- SoupGate-Win32 v1.05
    * Origin: fsxNet Usenet Gateway (21:1/5)
  • From Liz Tuddenham@21:1/5 to Cursitor Doom on Thu Sep 12 13:21:01 2024
    Cursitor Doom <cd999666@notformail.com> wrote:

    On Wed, 11 Sep 2024 16:52:12 -0400, Ralph Mowery wrote:
    [...]
    Audiophiles will pay big money for stupid things. Best example I have
    seen is they will pay around $ 100 for about 6 feet of some special wire
    to go from the eqipment to the AC receptical. Little good that does
    when there is 20 to 50 feet of cheap copper or even aluminum cable from there to the breaker box and other junk cable back to the power pole.

    Very true. Likewise speaker cable. I managed to get *very* many yards of excellent low-loss 50 ohm millimetre wave coax cable at a very reasonable price from some audiophool who'd been using it as speaker cable. He must
    have had incredible hearing, that guy. ;->

    The business of speaker cables sounding different may have had some
    passing acquaintance with the truth. Apparently the crossover networks
    in loudspeaker assemblies can present the amplifier with zero impedance
    under certain circumstances and may even try to feed stored energy back
    into it.

    Under those conditions it wouldn't be surprising if the impedance of the
    cables and the current-limiting behaviour of the amplifier output stage produced audible differences, even thouigh tests under 'normal'
    conditions, with resistive dummy loads, failed to find any difference.

    The cheapest answer is to have a separate amplifier for each loudspeaker
    drive unit and do the crossover with active filters ahead of the power
    stages. With amplifier chips being fairly cheap,it is easy to build
    them into the speaker enclosures. For even better results, tailor the frequency response of each amplifier to suit the particular drive unit
    and cabinet.

    The only disadvantages of this method are the need to distribute the
    signal at low level and to have a power supply to each loudspeaker box.


    --
    ~ Liz Tuddenham ~
    (Remove the ".invalid"s and add ".co.uk" to reply)
    www.poppyrecords.co.uk

    --- SoupGate-Win32 v1.05
    * Origin: fsxNet Usenet Gateway (21:1/5)