NORELCO TPA240 70-VOLT 240 WATT TELEPHONE AMPLIFIER. NEW Screw chain and talkback applications

and talkback applications

Rigid Conduit Type

Head design also reduces chance of pin slipping from the hand when aligning holes

The durable NEC PKUII-U Unit (Stock # 750110)  NEC ELECTRA ELITE IPK PORT KEY UPGRADE  with Port Upgrade chip is installed on the 750048 CPUII (100)-U10 ETU

Hardened steel for long life

NORELCO TPA240 70-VOLT 240 WATT TELEPHONE AMPLIFIER. NEW Screw chain and talkback applicationsProduct features DESCRIPTION: The TPA 240 family of Public Address Power Amplifiers represents a new level of high performance amplification at a very competitive price. Each unit incorporates power supply, rugged output stage and very good heat dissipation. The TPA 240 delivers 240 watts of continuous output power to 70 volt constant voltage systems. The input circuit allows interfacing with most types of PBX or key telephone systems. The TPA 240