LACHAPELL AUDIO
Model 583s Vacuum Tube Preamplifier for Microphonesand Instruments
Preliminary
Operating
Manual
Страница 1: ...LACHAPELL AUDIO Model 583s Vacuum Tube Preamplifier for Microphones and Instruments Preliminary Operating Manual ...
Страница 2: ...s therefore recommended that tube replacement be performed only when necessary and by technically competent individuals Tube replacement Turn power supply off and remove 583s from chassis wait five minutes to allow the vacuum tube to cool before attempting to remove it Using your fingers apply a slight circular rotating motion as you pull it away from the socket It is important to replace the tube...
Страница 3: ...ds or moisture present inside the 583s DO NOT turn power on Contact LaChapell Audio for direction The 583s should only be used with power supply frames that have a 120ma rating per bay Controls INPUT GAIN Adjusts gain within the input stage of the preamplifier and has a typical range of 30db via a fully variable 100kohm potentiometer OUTPUT GAIN Throttles gain to the output stage of the preamplifi...
Страница 4: ...her than with authorization from LaChapell Audio and by its approved procedures not been subjected to misuse improper maintenance negligence or accident or otherwise had its serial number or any part thereof altered defaced or removed All shipping and insurance costs for the Products repaired or replaced under warranty are the responsibility of the party shipping the Products All defective items r...
