Summary of Contents for Altec M11
- Page 1 INSTALLATION AND OPERATING INSTRUCTIONS for the ALTEC M11 MICROPHONE SYSTEMS featuring the ALTEC 21B MINIATURE CONDENSER MICROPHONE...
- Page 2 THE M11 MICROPHONE SYSTEMS M11A with 152A Cable Set M11A with 153A Cable Set 21B Microphone 21B Microphone 150A Base 150A Base P518A Power Supply P518A Power Supply 152A Cable Set 153A Cable Set M11B with 152A Cable Set M11B with 153A Cable Set...
- Page 3 INTERCONNECTION OF COMPONENTS OUTPUT CONNECTIONS The 21B Microphone is shipped in position on the The output of the M11 System appears at the end 150A Base. Attachment is by threads on the outside of 2-conductor shielded cable. As shipped the M11 the shell of the Microphone.
- Page 4 F I G U R E A DISCUSSION OF M11 MICROPHONE SYSTEM COMPONENTS AND THEIR FUNCTIONS ALTEC 21 B MICROPHONE THE 150A MICROPHONE BASE A cross-section diagram showing essential electrical The 150A Microphone Base encloses a vacuum tube and mechanical portions of the 21B Microphone is whose function is to translate the voltage generated at shown in Figure C.
- Page 5 The above cable sets are normally supplied in 25 foot lengths but may be had in any lengths on special order. The cable (Type RR6839) is also available separately. Cable construction is shown in Figure E and connection of the cable to the Cannon Plugs is shown in Figure F. Signal transmission through this cable is equivalent to the use of coaxial cable.
- Page 6 This is most If the M11 Microphone System is to be followed by a pre-amplifier in a permanent installation intervening readily accomplished by laying the case on its back.
- Page 7 Cannon connecter. our suggestions for use of these systems. ALTEC LANSING CORPORATION 161 Sixth Ave., New York 13, N.Y. 1161 North Vine St., Hollywood 38, Calif.
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