On 26/09/2012 16:51, Tom Fine wrote:
> Are you guys saying that the Philips-Miller system that etched 
> optically-read soundtracks onto coated film stock was used to make 
> stereophonic recordings? History, please! Was it two machines locked 
> together or did they use two inscribing heads for the same piece of film?
>
> -- Tom Fine
>
> ----- Original Message ----- From: "Ted Kendall" 
> <[log in to unmask]>
> To: <[log in to unmask]>
> Sent: Wednesday, September 26, 2012 11:41 AM
> Subject: Re: [ARSCLIST] early stereophony
>
>
>> On 26/09/2012 16:06, Gray, Mike wrote:
>>> Further on Columbia stereo ...
>>>
>>>
>>> The IS Agon was recorded at Goldwyn Stage 7 in Hollywood, June 17, 
>>> 1957.
>>>
>>>
>>> >From 1957 - 1959, Columbia often had both two- and three-track 
>>> running at orchestral sessions.
>>>
>>>
>>> If we really want to be complete ref. stereo, we ought to credit the 
>>> Dutch / Philips-Miller experiments recorded onto film in 1939 - 
>>> 1940. To my knowledge, these recordings have never been published.
>>>
>>>
>>> On RRG - From the summary of Heinz H.K. Thiele's presentation on RRG 
>>> stereo at AES in Berlin in 1993:
>>>
>>>
>>> 'Approximately 200 recordings, mainly of classical music, were made 
>>> at the RRG. Only five of these recordings remain in existence today 
>>> -- the others could not be found after World War II.'
>>>
>>>
>>> The missing reels undoubtedly went to Moscow where they were 
>>> degaussed and reused by the Russians on captured Magnetophone machines.
>>>
>>>
>>> Mike Gray
>>>
>> A brief clip of some stereo street sounds from a 194something stereo 
>> Philips- Miller was included in "The Hearing Aid" - a BBC programme 
>> on the history of stereophony, made in 1964. Philips may still have 
>> them?
>>
>
Two heads, one film, from what I can gather - the BBC mono machines were 
adjusted cut a second track onto used film during wartime shortages, so 
the medium had space enough for two tracks. I think the narration of the 
programme confirms this.