Dynamic Handset Unit for Block Instruments

Rugged defense field telephone handset molding. Replaces old handset unit of block instruments without modifications.

Durable dynamic transducers for receiver and transmitter.

Trumpet grommets prevent rupture of cord.

Narrow gripping area of handset permits placement on existing handset hook of block instrument.

High fidelity circuitry ensures voice clarity.

Voice bandpass circuitry reduces noise and interference.

Efficient electronics consumes very little current.

Works on 3 V batteries or power supply of 6 to 24 V.

Product and specification developed under guidance from S&T Workshop, Southern Railway, Podanur.