Hammond 903 Mic/Line Bridging Transformer – Vintage 900 Series, NOS in Box

Vintage Hammond 903 bridging transformer — New old stock (NOS), still in its original box.

This is part of Hammond’s top-of-the-line 900 Series, made to compete with the likes of UTC.

They were made with:

• High-grade nickel alloy cores for smooth, extended frequency response
• Balanced coil construction to ensure matched voltage, resistance, and capacitance
• Hum-bucking core design to minimize inductive pickup and stray fields

Key Specs:

• Primary: Multi-tap — 50Ω, 125Ω, 200Ω, 250Ω, 333Ω, 500Ω
• Secondary: Multi-tap — 50Ω, 125Ω, 200Ω, 250Ω, 333Ω, 500Ω
• Maximum input level: +20dBm
• Type: Mic or Line to Line bridging transformer
• NOS (New Old Stock), stored safely in smoke-free, climate-controlled environment
• Includes original factory box

Notes:

Perfect for mic preamps, line amps, transformer color boxes—you name it!

Shipping:

Will ship or available for local pickup in Asheville, NC.