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in70mm News |
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"in70mm.com" |
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Modernizing the DP70 |
Read more
at dp70.com and at
in70mm.com |
| Written by: Thomas Hauerslev, editor | Date: 11 June 2005 |
| From the beginning more than 50
years ago, the DP70 has been considered one of the best projectors ever
made. Despite that, Philips continued to improve the machine until
production ended around 1966. Since then, and especially in the 1990s,
the DP70 is still being upgraded, by Kinoton and other private enterprises.
This page will show some examples. |
Additional dp70 reading here: Go to Todd-AO Internet link: |
Most DP70 spares still produced |
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From: kinoton - Renate Zoller Sent: 28 August 2001 11:57 Dear Mr. Hauerslev Many thanks for your information about your interesting web site and special thanks for establishing a link to our web site www.kinoton.com. Regarding spare parts for the DP70 fortunately we cannot confirm your statement. It is true that not all service parts for the DP70 can be supplied, but most of them are still produced and supplied. Best regards, Renate Zoller |
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Internal DTS reader |
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 DP70
with internal DTS reader. Image by Mark Gulbrandsen14 November 2003 This is but one of the batch of 27 machines we have begun rebuilding. This one features an internal DTS reader in place of the mag penthouse and utilizes the original mag penthouse tensioning arm. This results in a closed loop DTS reader and is far more stable than the standard "top Mount" that most are using. The new BACP analog reader retrofit is shown on the analog reproducer. Other than a solid state drive motor system this is probably about as far as one can go to modernize these workhorses. Any of these retrofits can be supplied by CLACO off the shelf. Kindest regards, Mark Gulbrandsen CLACO Equipment And Service 1212 South State St, Salt LAke City UT 84110 USA +1 801-355-1250 |
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Reverse Scan |
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| See the official Kinoton reverse
scan head with additional pictures from Boston Light
and Sound (Resource page). A reverse scan modification is soon available from Claco Equipment and Services (USA). A reverse scan modification is also available from General Theatrical Supply (USA). It is based on the original soundhead/stabilizer and is the only reverse scan modification that allows use of the no-contact sound drum as designed by Phillips. It also allows the use of DP70 machines with the Cyan Dye soundtracks. The GST LED reverse scan/Jax Light combination allows another full octave of high frequency through to the processor extending hf response to 16kHz with little or no slit loss compensation at all. This upgrade, as well as Kinoton's Dolby Digital upgrade makes it very difficult to tell if you are listening to analog SR or digital in many cases. |
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870 Special Venue |
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 Projector
no. 1754 converted to the 870 format by Ciné Matériél
in Paris, France. Note missing magnetic cluster and enlarged
sprocket. Picture by Francois CARRIN.There are at least two examples of DP70's which have been converted to the 870 format. One 870 DP70 projector was offered at a price of USD 9995.00 dollars from Vistascope Corporation in Atlanta, Georgia, USA and another (SN: 1754) from Ciné Matériél in Paris. |
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Lens Turrent |
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| Coming soon | |
The Align-O-Tron |
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| How to align your lamp house with the Align-O-Tron. See Resource page | |
DP70 special reader bracket |
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 DP70
special reader bracket for mounting digital sound heads. Seen here are the
DTS and Dolby readers. |
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Cinefocus (no longer available) |
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 Obsolete
technology. See more |
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Photo mask by Todd-AO (no longer available) |
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| Photo mask by Todd-AO to boost the high end output to 0dB at 12.5K and -1dB
at 16K. Newly developed photographic slit masks for the DP70 optical sound head enable the DP70 to faithfully reproduce audio up to 12.5 kHz at 0dB with little slit loss compensation added in the pre-amplifier stage. This is equivalent to a half-mil slit or less in a forward scan sound head.  The original brass
slits were expensive to manufacture; it was difficult to obtain clean and
straight edges on the sides of the slit, so they were limited in their
high-frequency output. Not only do the new photo slits capture the high-end
frequencies of modern stereo optical sound tracks, they are inexpensive and
easy to install.The new mask should give you a curve that is flat to 12K and down 2dB at 16K. Designed by Dan Leimeter, Bob Weitz, and Rick Barrett, the new slit masks were available from. Todd-AO Studios 900 North Seward St. Hollywood CA USA The photographic mattes were provided free to anyone who asked for them in return for a short written evaluation - good or bad - of their performance. |
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- top - news index Updated 12-05-08 |
