FM SCA subcarrier audio receiver

Subsidiary Communications Authorization (SCA), or subcarrier, is a method used by FM radio stations to provide additional services and audio broadcasts, such as reading services for the blind or programming for specific ethnic groups. SCA receivers are typically built to receive only one frequency and cannot be easily tuned to a different station.
This radio is built to receive "ICN", the Italian language 67 kHz subcarrier of 88.3 "Jazz 88" WBGO in Newark, NJ. My reception is not that great, so the audio has a lot of static, but nonetheless it is a simple way to receive special programming without needing to use an Internet stream or pay for a subscription.