Altec/Peerless 4722 Mic Input Transformer, 150Ω to 50KΩ.

These transformers are in good condition, all windings have been tested for continuitly.  These are Octal plug in types, and are designed be used as Microphone input transformers.  The tops of the cases are in good condition.

These are popular for use as Step Up Transformers for moving coil cartridges 

Please note, price is per unit.  

• Octal Tube Base
• Primary Impedances: 38Ω, 150Ω.
• Secondary Impedance is 50KΩ.
• 1-5/16" x 1-13/16"

Impedance Matching: The 4722 was designed as a Microphone input transformer for use in Altec Lansing microphone mixers.  

Lately they've become popular as Step Up Transformers for Moving Coil cartridges.  

Manufactured by Peerless (an Altec subsidiary) which achieved a reputation for high quality transformers that were used in a variety of mid century electronics, Peerless build quality is (or was) at least comparable if not better than UTC, Stancor and CTS.