Explore the reliability and precision of Motorola with this Part No. 48C830082 Vibrator Interrupter, a stellar addition for enthusiasts and professionals alike. Designed and manufactured in the United States, this item reflects the quality and craftsmanship expected from a trusted brand like Motorola. This NOS (New Old Stock) seven-prong vibrator interrupter is an authentic Motorola component, ready to deliver uninterrupted performance for your vintage radio or communication equipment. Ensure your device operates with the integrity it deserves with this genuine replacement part.  

This type of vibrator was introduced in the mid 1950's in the U.S. and was intended for heavy duty applications primarily related to communications, such as radio transceivers.  It is a split reed, dual-interrupter type. That is, there are two sets of contacts, each with an individual isolated reed. Current rating is somewhat higher than typical radio vibrators such as those found in car and domestic broadcast receivers

Motorola 48C830082 crosses to a Mallory 1701 and it was also manufactured by General Dynamics under the same part number.  It is designed for heavy duty use in communications equipment.

This vibrator is the one used on the Twin-V police radios of 1955 as well as in the military.  It's a 95 Hz interrupter type and works on either 6 or12 volts by a jumper arrangement involving the transformer primaries and so forth.  The contacts are rather more robust than those in a car radio power supply.  They have very heavy contacts.  

                        Criteria                                                                         Characteristic

            Overall height                                                 2.876 inches min. and3.000 inches max.

            Overall diameter                                             1.469 inches min. and1.531 inches max.

            End item identification                                    Type an/vrc-27

            Input voltage rating                                         5.8 dc pounds per hour wet

            Output frequency rating                                  95.0hertz min. and 105.0 hertz max.

            Input current rating                                         24.0 amperes nominal

            Drive voltage relationship to input voltage     Unequal

            Drive voltage rating                                        6.0dc pounds per hour wet

            Reed type                                                       Dual

            Base connection wiring style                          7pin standard tube