GraLab 171 Universal 60 Minute Darkroom Timer 125V 750W 2 Outlets For Parts

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SKU:
35933
MPN:
171
Condition:
Used
Availability:
Usually ships within 1–2 business days.
Weight:
6.00 LBS
Shipping:
Calculated at Checkout
  • GraLab 171 Universal Timer front panel view showing large analog clock face with red and black minute/second hands and GraLab Universal Timer branding
  • GraLab 171 Universal Timer rear view showing black metal enclosure with carry handle and power cord exiting lower left
  • GraLab 171 rating plate showing Dimco-Gray Co. Dayton Ohio, Model 171, 125V AC, 60 Cycle, 750W max external load, U.S. Pat. No. 2,562,546, Made in USA
  • GraLab 171 front panel close-up showing clock dial, SET arrow, ON-OFF toggle switch upper right, Outlet Plug Open/Closed toggle upper left
  • GraLab 171 side panel showing two switched AC outlets — one white (upper) and one black duplex (lower) — with heavy surface corrosion and wear on the metal housing
$45.00
Was: $90.00
Current Stock: 1

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Description

GraLab 171 Universal 60 Minute Darkroom Timer 125V 750W 2 Outlets For Parts

The GraLab 171 is an electromechanical analog switching timer made by Dimco-Gray Co. of Dayton, Ohio. It features a large 60-minute analog clock dial with a sweep hand, two switched AC outlet positions, an ON/OFF toggle, and a separate outlet open/closed selector — designed to control connected equipment such as photographic enlargers automatically by elapsed time. This unit is being sold as-is for parts or repair and has not been tested.

Specifications & What's Included

  • Brand: GraLab / Dimco-Gray Co., Dayton, Ohio
  • Model: 171
  • U.S. Patent No.: 2,562,546
  • Timer type: Electromechanical analog, 60-minute range
  • Input voltage: 125V AC, 60 Hz
  • Max external load: 750 Watts
  • Switched outlets: 2 (one white single outlet, one black duplex outlet on side panel)
  • Controls: ON/OFF toggle switch, Outlet Plug Open/Closed selector, SET pointer
  • No buzzer version (buzzer-equipped variant exists separately)
  • Form factor: Portable benchtop/tabletop with carry handle
  • Construction: Black painted steel enclosure
  • Made in USA
  • Power cord attached

Applications

The GraLab 171 was a standard darkroom interval timer used throughout the mid-20th century in photographic darkrooms — primarily to control enlarger exposure times and process timing for film development. Introduced in the 1950s, GraLab timers by Dimco-Gray Co. became one of the most widely recognized and trusted darkroom timing tools in the industry, used in both professional photo labs and school darkrooms. The large, easy-to-read analog dial allowed photographers to set precise exposure intervals in low-light darkroom conditions without needing to look directly at the timer. The switched outlet system allowed the enlarger lamp to be automatically cut off when the set time elapsed. GraLab continued manufacturing variants of this design for decades, and the 171 and its siblings (including the buzzer-equipped model) remain sought after by film photography enthusiasts, vintage collectors, and darkroom restoration hobbyists. Today these timers are collected as functional vintage darkroom equipment and as representative artifacts of the analog photography era.

Condition: For Parts or Not Working
This GraLab 171 Universal 60-Minute Switching Timer by Dimco-Gray Co. is being sold as-is for parts or repair. Its current working status has not been confirmed and it is not guaranteed functional. The unit shows significant age and wear throughout — the metal housing has heavy surface corrosion and paint loss, particularly visible on the side panel around the outlets. The front dial face shows soiling and wear. The two switched AC outlets are present (one white, one black duplex), and a power cord is attached. The analog clock mechanism, ON/OFF toggle, and outlet selector toggle are all physically present. This unit is not tested and is offered strictly for parts, restoration, or display. Please view our photo set and contact us if you have any questions.
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Warranty Information

We stand behind every item we sell with a 30-day money-back guarantee. If your item arrives not as described, you may return it within 30 days for a full refund. Please inspect your purchase upon arrival and contact us with any questions.
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Additional Information

Brand:
GraLab (Dimco-Gray Co.)
Model:
171
MPN:
171
Type:
Universal Switching Interval Timer
SKU:
35933
Condition:
As-Is / For Parts or Not Working
Seller Notes:
Sold as-is for parts. No buzzer. Includes power cord.
Country/Region of Manufacture:
United States
Power Requirements:
125V AC, 60 Hz
Max External Load:
750 Watts
Number of Outlets:
2
Timer Range:
0–60 Minutes
Timer Type:
Electromechanical Analog
Application:
Darkroom / Photographic Enlarger Timing
U.S. Patent No.:
2,562,546
Manufacturer Location:
Dayton, Ohio
Form Factor:
Portable Benchtop / Tabletop with Handle
Condition Notes:
GraLab 171 Universal Darkroom Timer sold as-is for parts or repair. Not tested, not guaranteed functional. Heavy corrosion and wear on housing. Two switched outlets and power cord present. For parts only.
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
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