Phillips technical review

[Fela Borbone]

Hi,
I came across some docs that may be of interest.

First, the Phillips Miller recorder recorded mechanically on film to be read optically. The cutter head was moving iron, of course.

[Fela Borbone]

...ans specific about how the head worked...

[Fela Borbone]

The book(wich I dont own) "The design of a cutter head for the amateur" was based in the following papers...

[Fela Borbone]

...and a wacky early stereo version..

stereo.pdf

.
...more to come....

[markrob]

Hi,

Thanks so much for posting this! Very useful information here.

Mark

[dubcutter89]

Hey Fela!

THX for sharing - great stuff!
I also don't own that book but always was corious about the Philips design which seems kind of similair to bbc/grampian.
Also interresting to see the "stereo" version which reminds me very much of an Emory Cook approach but some years earlier.
Also I've read some of that stuff in another book in an old library in my town, maybe I have to go there for another research...

Cheers
Lukas

[Fela Borbone]

You're wellcome!

... about ligth pattern test on stereo records...

[Fela Borbone]

...How did they fabricated playback stylii...

[Fela Borbone]

...Microgrooves are comming!

[Fela Borbone]

Motional feedback for loudspeakers...

[Fela Borbone]

Video lp...

[Fela Borbone]

Thats all folks!
Have you ever wonder how records are made?
...have a look!

[Stevie342000]

Did they all come from here?

http://www.extra.research.philips.com/hera/people/aarts/_Philips%20Bound%20Archive/PTechReview/

I had been working my way through these some months back, if you go back to the parent directory there may be others under some of the tabs. It took me a bit of searching to find it and to truncate the link to get to the parent directory. I had looked through some of them and had been downloading them for later reference and review.

Enjoy there's a lot of reading in there.

[Fela Borbone]

Yes, a lot of info about tubes too...
I selected the most relevant about disc recording. (And sneaked one CD like, sorry), but may be I missed something....like this note...

[Stevie342000]

There is bound to be other stuff in there of interest as well about discs and cutting, as well as associated subjects. Now others can go seek and find.......

[Fela Borbone]

http://www.extra.research.philips.com/hera/people/aarts/_Philips%20Bound%20Archive/Binders/
The directoty I found is not the same but seems to lead to tbe same contents

[Stevie342000]

It is the same, just need to flip back to the parent directory, I got the link in an email months back on another group I think. I thought it might be useful so I started to download some of them for future reference and review of contents at a later date.

[subkontrabob]

You're wellcome!

... about ligth pattern test on stereo records...

Thank You! This one is VERY useful! Nice to see further treatment of the topic, except for the original Buchmann- Meyer article (from which this one seems to be borrowing illustrations).

Bastiaans also appears as an author in the AES disk recording anthology.

[Fela Borbone]

...And embossed records have two ligth patterns, one from the groove and other from the horns,... not identical!

[untitledthe]

Very interesting! Thank you for sharing!