Ampeg J-20 JET Owner's Manual

J-20 JETAll-Tube Guitar Amplifier with Tremolo EffectOwner’s Manual

J-20 Jet All-Tube Guitar Amplifier with Tremolo10System Block DiagramNORMALINPUTBRIGHTINPUTVOLUME TONE12AX7AV1A12AX7AV2A12AX7ATREMOLOOSCILLATORV2BINTE

J-20 Jet All-Tube Guitar Amplifier with Tremolo11Declaration Of ConformityManufacturer: LOUD Technologies Inc. 16220 Wood-Red Rd. NE Woodinvill

J-20 Jet All-Tube Guitar Amplifier with Tremolo12J-20 JET TECHNICAL SPECIFICATIONSOutput Power Rating 20 W rms @ 5% THD, 8 ohm load, 120 VACNoise

J-20 Jet All-Tube Guitar Amplifier with Tremolo2IMPORTANT SAFETY INSTRUCTIONS• READ, FOLLOW, HEED, AND KEEP ALL INSTRUCTIONS AND WARNINGS.• DO NOT O

J-20 Jet All-Tube Guitar Amplifier with Tremolo3IntroductionCongratulations! You are now the proud owner of an Ampeg J-20 Jet all-tube guitar amplifie

J-20 Jet All-Tube Guitar Amplifier with Tremolo4The Front Panel1. NORMAL: Use this jack to connect your guitar to the amplifier using a shielded instr

J-20 Jet All-Tube Guitar Amplifier with Tremolo5The Rear Panel10. AC LINE CORD: The grounded power cord should only be plugged into a grounded power o

J-20 Jet All-Tube Guitar Amplifier with Tremolo6A Brief History Of The Tube:In 1883, Edison discovered that electrons would flow from a suspended fila

J-20 Jet All-Tube Guitar Amplifier with Tremolo7The power tubes are the largest tubes used in an amplifier. These tubes convert the low-level, conditi

J-20 Jet All-Tube Guitar Amplifier with Tremolo8Whenever you replace the power tube(s):• Always have the amplifier’s bias voltage checked by a qualif

J-20 Jet All-Tube Guitar Amplifier with Tremolo9Important Information About Tubes and Tube Products (continued):Survival Tips For Tube Amplifiers:To p