Electrohome-VA100_MKI-pre-维修说明书手册含电器原理图

INSTRUCTION LEAFLET SERVICE INFORMATION-FOR THE-CectiohomeCustom Built "VA-100 MKI"Hi-Fi4-TUBE PREAMPLIFIER-EQUALIZER一FEATURING一.Seven-position Input and Roll-over Separate Level and ContourSelector SwitchControlsSix-position Roll-off SelectorAudio High Pass Filter SwitchSwitchAudio Low Pass Filter Switch.Amplifier and Tape Record,Out-put Jacks.Switched AC ReceptaclesFour Separate Input Jacks●Hum Balance Control●Separate Bass and Treble Tone.Magnetic Input Resistance ControlControls。Jewel Type IndicatorSpecifications as follows:Frequency Response20 cps to 20,000 cps.Hum and Noise Level80 db below two volts rated outputIntermodulation DistortionLess than .5%at five volts outputHarmonic Distortion0.5%at five volts outputVoltage GainFiveContour ControlDesigned to provide 20 db lift at 20 epsBass Tone ControlDesigned to provide 15 db cut or lift at 50 cpsDesigned to provide 15 db cut or lift at 10,000cps.Audio High Pass Filter Switch-Bass cut position-20 db at 30 epsAudio Low Pass Filter Switch-Treble cut position-14 db at 5,000 cps25 db at 10,000 cpsEqualizationTwenty-four different equalization curves areavailable using roll-over and roll-off switches.PowerSupply -110-120 Volts.25/60 cycle 20 wattsMANUFACTURED BYDominion Electrohome IndustriesLIMITEDKITCHENER ONTARIO -CANADAManufacturers ofCustom Built Cabinets and Hi-Fi Custom Equipment,Radio and Television Receivers,Car,Radios,Air Conditioners,Fans,Deilcraft Fine Furniture.J37322300-D.P.105