Pair Vintage 10" CTS Alnico Speakers Matched Set 8.5 Ohm 1966 985-003563 Tested 

Pulled from retired musicians rolling cabinets.

Speaker Identification & Specifications

Manufacturer : CTS (Chicago Telephone Supply)

EIA Code: 137 (The first three digits stamped on the square back). 

CTS was a massive supplier of audio drivers for classic guitar amplifiers (like vintage Fender and Ampeg amps) and high-fidelity systems from the 1950s through the 1970s.

Production Date: Mid-June 1976 (or potentially 1966)

Date Code: 616. The digit 6 indicates the year ending in 6 (most likely 1976 given the frame and ceramic build style), and 16 indicates it was produced during the 16th week of the year (around mid-April).

Part Number: 985-003563

This is the specific OEM (Original Equipment Manufacturer) customer tracking number or internal part number used to fulfill orders for a specific brand's cabinet or amplifier.

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Listed5 days ago
ConditionVery Good (Used)
Very Good items may show a few slight marks or scratches but are fully functional and in overall great shape.Learn more
Brand
Model
  • 985-003563
Finish
  • Silver metal
Categories
Year
  • 1976
Made In
  • United States

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