TELEPHONE TRAINER is basically designed to help students to understand the basic concept and working of a Telephone. This is a totally working model and can be used as an actual Telephone. The trainer comes with all the accessories to perform various experiments. All the components are mounted on single PCB in a block wise fashion and have various tests points and LED’s provided onboard to indicate various signals on telephone. Exhaustive manuals are provided along with the kit, which provides detailed experimental procedure and complete circuit diagram explanation of the kit.

FEATURES:
• The Telephone Trainer on single PCB with circuit MIMIC inscribed on it.
• Mute, Redial and On/Off Hook switches.
• Dialer and Ringer section.
• Pulse dialing as well as Tone dialing facility.
• Power is taken from the external telephone line, no power supply required to work with this kit.
• Various test points and LED’s provided.
• Switch Faults.

LIST OF EXPERIMENTS:
• Understanding Telephone.
• Study of Pulse Dialing.
• Study of Tone Dialing.
• Study of Speech circuit.
• Study of switching mechanism between subscribers.
• Incoming call
• Outgoing call
• Study of Ringer.
• Study of Telephone Features.
• Effect of Switch faults.