This is a TRW Model A-21, in Good condition with moderate wear to the case finish. This model is listed as a Mixing, Matching transformer and has many applications for high quality, balanced audio circuits.
All of the UTC 'A' style cases offer true hum balancing coil structure. These die cast cases are well shielded, and offer top and bottom mounting threads.
This unit was removed from a recording studio interface panel. The transformer measures 1.5" x 1.5" x 2" (H).
The specifications are as follows:
- Primary: 50, 200, 500 Ω Impedance
- Secondary: 50, 200, 500 Ω Impedance
- Frequency Response: 30 Hz to 30KHz
- Max Level +15 dbm
- Hi Pot 500 volts