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Western Electric Western Electric WE111C Legend
Product information
- Product category
- Transformer
- Manufacturer
- Western Electric
- Function
- flawless
- Age
- 30 years 5 months By estimate
- Usage state
- second-hand
- Appearance
- signs of usage
- Accessories
- complete without original box
- Price
- 3,000.00 €
- More information
- http://www.westernelectric.com/
Description
The Western Electric 111C is a legendary vintage "repeating coil" (audio transformer) originally engineered by AT&T/Western Electric to handle line isolation, balancing, and impedance matching across long-distance telephone and radio broadcast networks. Built like a tank with a permalloy toroidal ring core, it is widely celebrated for its pristine audio fidelity, massive headroom, and low distortion.
In modern audio circles, it has found a second life as a highly coveted "passive color box" in high-end recording studios and audiophile Hi-Fi systems.
Technical Specifications
• Core Type: High-permeability permalloy toroidal core.
• Impedance Configurations: Flexible 4-winding architecture allowing for 600:600 ohm (1:1 ratio for unity gain) or 150:600 / 600:150 ohm (step-up/step-down) routing.
• Frequency Response: Conservatively rated at 30 Hz to 15,000 Hz, though real-world testing routinely shows it flat out past 20 kHz to 30 kHz with remarkably flat tolerances (+0, -0.2 dB).
• Power Capacity: Handles up to +30 dBm (1.1 Watts) at 30 Hz, ensuring immense dynamic range and virtually zero core saturation at standard audio line levels.
• Shielding: Features a robust inter-winding electrostatic shield to eliminate noise and ground loops.
• Physical Profile: Encased in a rugged gray enamel potted iron housing, weighing roughly 4.5 lbs (approx. 2 kg) per co
In modern audio circles, it has found a second life as a highly coveted "passive color box" in high-end recording studios and audiophile Hi-Fi systems.
Technical Specifications
• Core Type: High-permeability permalloy toroidal core.
• Impedance Configurations: Flexible 4-winding architecture allowing for 600:600 ohm (1:1 ratio for unity gain) or 150:600 / 600:150 ohm (step-up/step-down) routing.
• Frequency Response: Conservatively rated at 30 Hz to 15,000 Hz, though real-world testing routinely shows it flat out past 20 kHz to 30 kHz with remarkably flat tolerances (+0, -0.2 dB).
• Power Capacity: Handles up to +30 dBm (1.1 Watts) at 30 Hz, ensuring immense dynamic range and virtually zero core saturation at standard audio line levels.
• Shielding: Features a robust inter-winding electrostatic shield to eliminate noise and ground loops.
• Physical Profile: Encased in a rugged gray enamel potted iron housing, weighing roughly 4.5 lbs (approx. 2 kg) per co
Seller:
- Shipping from Poland (05-200)
- Purchaser pays shipping costs
- Worldwide shipping
Payment methods
- Bank transfer
- PayPal
- Prepayment (bank transfer)
Advert ID
2987549163
Advert time period- Start:
- 30.10.2026 - 21:54
- End:
- 29.12.2026 - 21:54
13 times in 1 hour(s)
