This link was in RadCom
https://www.lelandwest.com/blog/listing.asp?2022/3/the-history-of-record-players-in-cars
This link was in RadCom
https://www.lelandwest.com/blog/listing.asp?2022/3/the-history-of-record-players-in-cars
Also some interesting stuff on early cars on the site.
You'll be telling us next in the mid 1960s there were radio stations on
ships in the North Sea playing records, even in rough weather ?
On 19/08/2022 14:14, MB wrote:
This link was in RadCom
https://www.lelandwest.com/blog/listing.asp?2022/3/the-history-of-record-players-in-cars
Also some interesting stuff on early cars on the site.
You'll be telling us next in the mid 1960s there were radio stations on
ships in the North Sea playing records, even in rough weather ?
On 19/08/2022 15:14, Mark Carver wrote:
You'll be telling us next in the mid 1960s there were radio stations on
ships in the North Sea playing records, even in rough weather ?
They didn't they tend to use tape or eight-track cartridges when the
weather got bad?
I was expecting a post from Bill saying he still has a wind-up
phonograph in his van. :-)
On 19/08/2022 15:14, Mark Carver wrote:
You'll be telling us next in the mid 1960s there were radio stations on
ships in the North Sea playing records, even in rough weather ?
They didn't they tend to use tape or eight-track cartridges when the
weather got bad?
How did you know about that? It isn't wind up though; it's powered by
engine vacuum. The only thing is, when I rev the engine the record
speeds up.
"MB" <MB@nospam.net> wrote in message news:tdo2bq$1gf7l$1@dont-email.me...
This link was in RadCom
[...]https://www.lelandwest.com/blog/listing.asp?2022/3/the-history-of-record- >players-in-cars
I didn't know that record players in cars was even possible. I thought that the slightest bump would make the record player skip.
Maybe a very heavy tracking weight to keep the needle in
the groove.
On 19/08/2022 15:53, MB wrote:
On 19/08/2022 15:14, Mark Carver wrote:
You'll be telling us next in the mid 1960s there were radio stations on
ships in the North Sea playing records, even in rough weather ?
They didn't they tend to use tape or eight-track cartridges when the
weather got bad?
I was expecting a post from Bill saying he still has a wind-up
phonograph in his van. :-)
How did you know about that? It isn't wind up though; it's powered by
engine vacuum. The only thing is, when I rev the engine the record
speeds up.
On 19/08/2022 15:53, MB wrote:
On 19/08/2022 15:14, Mark Carver wrote:I think they did yes, and I think the 1980s ship Laser 558 used carts
You'll be telling us next in the mid 1960s there were radio stations on
ships in the North Sea playing records, even in rough weather ?
They didn't they tend to use tape or eight-track cartridges when the
weather got bad?
all the time ? (As many landbased US radio stations did too)
On 19/08/2022 14:14, MB wrote:
This link was in RadCom
https://www.lelandwest.com/blog/listing.asp?2022/3/the-history-of-record-players-in-cars
Also some interesting stuff on early cars on the site.
You'll be telling us next in the mid 1960s there were radio stations on
ships in the North Sea playing records, even in rough weather ?
On 19/08/2022 15:56, Mark Carver wrote:
On 19/08/2022 15:53, MB wrote:
On 19/08/2022 15:14, Mark Carver wrote:I think they did yes, and I think the 1980s ship Laser 558 used carts
You'll be telling us next in the mid 1960s there were radio stations on >>>> ships in the North Sea playing records, even in rough weather ?
They didn't they tend to use tape or eight-track cartridges when the
weather got bad?
all the time ? (As many landbased US radio stations did too)
Laser 558 used records for music and carts for adverts, jingles and
inserts, just as all the others did, no matter what the weather.
You'll be telling us next in the mid 1960s there were radio stations on
ships in the North Sea playing records, even in rough weather ?
NY <me@privacy.invalid> wrote:
"MB" <MB@nospam.net> wrote in message[...]
news:tdo2bq$1gf7l$1@dont-email.me...
This link was in RadCom
https://www.lelandwest.com/blog/listing.asp?2022/3/the-history-of-record- >> >players-in-cars
I didn't know that record players in cars was even possible. I thought
that
the slightest bump would make the record player skip.
Maybe a very heavy tracking weight to keep the needle in
the groove.
The exact opposite. A heavy tracking weight would have high inertia and would need higher forces to make it follow movements of the car. The
arms were very light with low inertia and were held on the record by
gentle spring pressure.
I wonder if any car record players had decks which could pitch and roll to >compensate for movements of the car - as referred to in the sub-thread about >gyro-gimballed decks on Radio Caroline (etc) ships.
"Liz Tuddenham" <liz@poppyrecords.invalid.invalid> wrote in message news:1pwy45d.15lbymrduppcmN%liz@poppyrecords.invalid.invalid...
NY <me@privacy.invalid> wrote:
"MB" <MB@nospam.net> wrote in message[...]
news:tdo2bq$1gf7l$1@dont-email.me...
This link was in RadCom
https://www.lelandwest.com/blog/listing.asp?2022/3/the-history-of-record- >> >players-in-cars
I didn't know that record players in cars was even possible. I thought
that
the slightest bump would make the record player skip.
Maybe a very heavy tracking weight to keep the needle in
the groove.
The exact opposite. A heavy tracking weight would have high inertia and would need higher forces to make it follow movements of the car. The
arms were very light with low inertia and were held on the record by
gentle spring pressure.
I think we may be talking about the same thing. Whether it's a penny (or several) on the tone arm or a spring pulling the tone arm towards the
record, the aim is to generate a downward force to make the stylus stay in the groove and to prevent the stylus skipping grooves or the whole tone arm skating around.
NY <me@privacy.invalid> wrote:
"MB" <MB@nospam.net> wrote in message[...]
news:tdo2bq$1gf7l$1@dont-email.me...
This link was in RadCom
https://www.lelandwest.com/blog/listing.asp?2022/3/the-history-of-record- >> >players-in-cars
I didn't know that record players in cars was even possible. I thought
that
the slightest bump would make the record player skip.
Maybe a very heavy tracking weight to keep the needle in
the groove.
The exact opposite. A heavy tracking weight would have high inertia and would need higher forces to make it follow movements of the car. The
arms were very light with low inertia and were held on the record by
gentle spring pressure.
The inertia of a turntable would have made the machine prone to wow
during turning movements, so they used a very lightweight turntable
driven by a high-speed shaft with a flywheel. The angular motion of the player relative to this small shaft could cause wow, but it was geared
down when it reached the turntable and gave a much smaller effect.
(Similar to the drive system of a Uher.)
All the rotating components, including the pickup arm, were balanced so
their centres of mass coincided with the pivots. Because of this, any up-down or sideways movement didn't give rise to turning moments.
--
~ Liz Tuddenham ~
(Remove the ".invalid"s and add ".co.uk" to reply)
www.poppyrecords.co.uk
"Liz Tuddenham" <liz@poppyrecords.invalid.invalid> wrote in message news:1pwy45d.15lbymrduppcmN%liz@poppyrecords.invalid.invalid...
NY <me@privacy.invalid> wrote:
"MB" <MB@nospam.net> wrote in message[...]
news:tdo2bq$1gf7l$1@dont-email.me...
This link was in RadCom
https://www.lelandwest.com/blog/listing.asp?2022/3/the-history-of-record- >>> >players-in-cars
I didn't know that record players in cars was even possible. I thought
that
the slightest bump would make the record player skip.
Maybe a very heavy tracking weight to keep the needle in
the groove.
The exact opposite. A heavy tracking weight would have high inertia and
would need higher forces to make it follow movements of the car. The
arms were very light with low inertia and were held on the record by
gentle spring pressure.
I think we may be talking about the same thing. Whether it's a penny (or several) on the tone arm or a spring pulling the tone arm towards the
record, the aim is to generate a downward force to make the stylus stay in the groove and to prevent the stylus skipping grooves or the whole tone
arm skating around.
My parents' B&O turntable had a collar that you moved up and down the tone arm to vary downward spring pressure and therefore tracking weight. I
found that a perfectly flat record could tolerate a lower tracking weight that one which had warped, when greater tracking weight (downward force)
was needed to prevent skipping and skating on the high points of the warp,
at the expense of slight loss of high frequencies (and in extreme cases, clipping) as the stylus was moved towards one end of the movement range of the sensor, which I imagine was moving-iron-in-coil rather than crystal.
When I was digitising a lot of LPs for my father-in-law, I found that a
penny on the tone arm improved the quality of the sound (less distortion).
My record deck doesn't (AFAIK) have any *obvious* way of adjusting spring tension to alter tracking force.
I wonder if any car record players had decks which could pitch and roll to compensate for movements of the car - as referred to in the sub-thread
about gyro-gimballed decks on Radio Caroline (etc) ships.
This link was in RadCom
https://www.lelandwest.com/blog/listing.asp?2022/3/the-history-of-record-players-in-cars
Also some interesting stuff on early cars on the site.
MB
"Mark Carver" <mark.carver@invalid.invalid> wrote in message news:jm9k5kFq8h0U1@mid.individual.net...
You'll be telling us next in the mid 1960s there were radio stations on
ships in the North Sea playing records, even in rough weather ?
That is easier to engineer a solution to compensate for, because the turntables can be mounted on gyro-stabilised gimbals so they stay (almost) horizontal as the ship pitches and rolls. But still not immune to sudden lurches. I imagine they too had to use very heavy tracking weight on the stylus to help it not skip.
On 19/08/2022 15:14, Mark Carver wrote:
On 19/08/2022 14:14, MB wrote:
This link was in RadCom
https://www.lelandwest.com/blog/listing.asp?2022/3/the-history-of-record-players-in-cars
Also some interesting stuff on early cars on
the site.
You'll be telling us next in the mid 1960s there
were radio stations on
ships in the North Sea playing records, even in
rough weather ?
One of them even had gimbals for the turntables. ;-)
The rest used the time honoured dodge of a penny
on top of the cartridge, often held in place by
sellotape.
If you fancy diving for it, according to an inside
source, Radio Caroline's original record library
is still on board the Mi Amigo, which sank in 1980.
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