Description
Photo-Sonics Take-Up Clutch 70mm-10B 35mm-4B High Speed Camera 22-7320
This is a genuine Photo-Sonics Inc. take-up clutch assembly designed for use with the Photo-Sonics 70mm-10B and 35mm-4B/4C high speed film cameras. The clutch maintains proper film tension on the take-up reel during high-speed film transport, and its torque is factory-set to the precise in-lb specifications required by each camera format. Both the clutch torque setting plate and the motor rating plate are present and legible on the unit.
Specifications & What's Included
- Manufacturer: Photo-Sonics Inc., Burbank, California
- Compatible cameras: Photo-Sonics 70mm-10B, 35mm-4B, 35mm-4C
- Clutch torque setting — 70mm-10B: 26–28 in.lb
- Clutch torque setting — 35mm-4B/4C: 32–34 in.lb
- Motor voltage: 180V
- Horsepower: 1/70 HP
- Phase: Single phase
- Frequency: 60 Hz
- Motor speed: 3700 RPM
- Assembly number: 22-7320
- Wiring diagram: 722-157
- Cable with yellow multi-pin military-style circular connector
- Mounted on angled base/bracket with rubber drive wheel
- Take-up clutch assembly — no additional accessories
Applications
Photo-Sonics was a leading American manufacturer of high-speed motion picture cameras used in aerospace, defense, scientific research, and industrial testing — primarily from the 1950s through the 1990s. Their cameras, including the 70mm-10B and 35mm-4B/4C models, were designed to capture events at extremely high frame rates (hundreds to thousands of frames per second) for slow-motion analysis of ballistics, rocket engine tests, crash tests, aircraft flutter, and similar high-speed phenomena. The take-up clutch is a precision mechanical component that controls the torque applied to the film take-up reel, preventing film breakage or slack during the high-speed transport cycle. Replacement and spare clutch assemblies like this one are sought by operators maintaining and restoring Photo-Sonics cameras still in service, as well as by collectors and cinematography historians. Genuine Photo-Sonics spare parts are increasingly scarce.
This Photo-Sonics Take-Up Clutch for the 70mm-10B and 35mm-4B/4C high speed cameras has been inspected and appears to be in good used condition. The white painted housing shows scattered paint chips and surface scuffs consistent with age and prior use in a production or test environment — typical for equipment of this era. The torque setting label and rating plate are both present and fully legible. The yellow multi-pin circular connector on the cable end shows wear to its outer housing. No cracks, breaks, or signs of damage to the mechanical or electrical components were observed. This is a rare and hard-to-find accessory; please review all photos carefully and contact us with any questions before purchasing.
Warranty Information
Additional Information
Brand: |
Photo-Sonics |
Model: |
70mm-10B / 35mm-4B |
MPN: |
22-7320 |
Secondary Model: |
35mm-4C |
Type: |
Take-Up Clutch |
SKU: |
35587 |
Compatible With 1: |
Photo-Sonics 70mm-10B High Speed Camera |
Compatible With 2: |
Photo-Sonics 35mm-4B High Speed Camera |
Compatible With 3: |
Photo-Sonics 35mm-4C High Speed Camera |
Clutch Torque Setting (70mm-10B): |
26–28 in.lb |
Clutch Torque Setting (35mm-4B/4C): |
32–34 in.lb |
Voltage: |
180V |
Horsepower: |
1/70 HP |
Phase: |
Single Phase |
Frequency: |
60 Hz |
RPM: |
3700 |
Assembly Number: |
22-7320 |
Wiring Diagram: |
722-157 |
Country/Region of Manufacture: |
United States |
Seller Notes: |
Take-up clutch assembly only — no additional accessories included. |
Condition Notes: |
This Photo-Sonics Take-Up Clutch (70mm-10B / 35mm-4B) has been inspected and appears to be in good used condition. Housing shows paint chips and surface scuffs typical of age. Torque and rating plates present and legible. Cable connector shows wear. |
California Prop 65 Warning: |
WARNING: This product can expose you to chemicals including lead and lead compounds, and DEHP (a phthalate), which are known to the State of California to cause cancer and birth defects or other reproductive harm. Go to P65Warnings.ca.gov |
