Federal Telephone & Radio R19FDR-2052274 Audio Frequency Transformer NSN:5950-00-646-3467
Audio Frequency TransformerNSN:5950-00-646-3467 Model:R19FDR-2052274 P/N:AR/ARN-21
A transformer which is designed so that part or all of its range of operating frequencies is 20 kilohertz (kilocycles) and below. The value may extend into the radio frequency range. It is generally used in the input, output, amplifier, or oscillator stages of audio and sonar devices.