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Thank you for selecting the Ampeg Classic Jet guitar amplifier. Revived from the sixties and ready for the nineties, this easy-to-use amplifier represents Ampeg’s quest to provide you the finest instrument amplification systems available. In order to get the most out of your new amplifier, please read these instructions before its use.
Table of Contents:
The Front Panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4,5
The Rear Panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6
Important Information About Tubes and Tube Products
A Brief History Of The Tube . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7 Tube Types And Usage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7,8 The Nature Of Tubes: Why (And When) To Replace Them . . . . .8,9 The Importance Of Proper Biasing . . . . . . . . . . . . . . . . . . . . . . . .9 Survival Tips For Tube Amplifiers . . . . . . . . . . . . . . . . . . . . . . . .10
System Block Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11
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Declaration Of Conformity |
|
#35, Effective 01-01-2001 |
Manufacturer’s Name: |
SLM Electronics |
Production Facility: |
11880 Borman Drive, St. Louis, MO 63146, USA |
Production Facility: |
700 Hwy 202 W, Yellville, AR 72687, USA |
Shipping Facility: |
1400 Ferguson Ave., St. Louis, MO 63133, USA |
Office Facility: |
1400 Ferguson Ave., St. Louis, MO 63133, USA |
Product Type: |
Audio Amplifier |
Complies with the following Standards: |
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Safety: |
EN60065, E60065, C22.2, UL6500 and/or UL813 |
EMC: |
Directive 89/336/EEC, EN55103, EN55013, EN61000, |
|
and/or FCC 47CFR 15B clA |
Supplementary information provided by: SLM Electronics - R & D Engineering
1901 Congressional Drive, St Louis, MO 63146, USA
Tel.: 314-569-0141, Fax: 314-569-0175
CAUTION
RISK OF ELECTRIC SHOCK
DO NOT OPEN
WARNING: TO REDUCE THE RISK OF FIRE OR ELECTRIC SHOCK, DO NOT EXPOSE THIS APPARATUS TO RAIN OR MOISTURE. TO REDUCE THE RISK OF ELECTRIC SHOCK, DO NOT REMOVE COVER. NO USER-SERVICEABLE PARTS INSIDE. REFER SERVICING TO QUALIFIED SERVICE PERSONNEL.
PRECAUCION
RIESGO DE CORRIENTAZO
NO ABRA
PRECAUCION: PARA REDUCIR EL RIESGO DE INCENDIOS O DESCARGAS ELECTRICAS, NO PERMITA QUE ESTE APARATO QUEDE EXPUESTO A LA LLUVIA O LA HUMEDAD. PARA DISMINUOIR EL RIESGO DE CORRIENTAZO. NO ABRA LA CUBIERTA. NO HAY PIEZAS ADENTRO QUE EL USARIO PUEDO REPARAR DEJE TODO MANTENIMIENTO A LOS TECHNICOS CALIFICADOS.
ATTENTION
RISQUE D'ELECTROCUTION
NE PAS OUVRIR
ATTENTION: PROTÉGEZ CET APPAREIL DE LA PLUIE ET DE L'HUMIDITÉ AFIN D'ÉVITER TOUT RISQUE D'INCENDIE OU D'ÉLECTROCUTION. POUR REDUIRE D'ELECTROCUTION NE PAS ENLEVER LE COUVERCLE. AUCUNE PIECE INTERNE N'EST REPRABLE PAR L'UTILISATEUR. POUR TOUTE REPARATION, S'ADRESSER A UN TECHNICIEN QUALIFIE.
IMPORTANT SAFETY INSTRUCTIONS
•READ, FOLLOW, HEED, AND KEEP ALL INSTRUCTIONS AND WARNINGS.
•DO NOT OPERATE NEAR ANY HEAT SOURCE AND DO NOT BLOCK ANY VENTILATION OPENINGS ON THIS APPARATUS. FOR PROPER OPERATION, THIS UNIT REQUIRES 3” (75mm) OF WELL VENTILATED SPACE AROUND HEATSINKS AND OTHER AIR FLOW PROVISIONS IN THE CABINET.
•DO NOT USE THIS APPARATUS NEAR SPLASHING, FALLING, SPRAYING, OR STANDING LIQUIDS.
•CLEAN ONLY WITH LINT-FREE DAMP CLOTH AND DO NOT USE CLEANING AGENTS.
•ONLY CONNECT POWER CORD TO A POLARIZED, SAFETY GROUNDED OUTLET WIRED TO CURRENT ELECTRICAL CODES AND COMPATIBLE WITH VOLTAGE, POWER, AND FREQUENCY REQUIREMENTS STATED ON THE REAR PANEL OF THE APPARATUS.
•PROTECT THE POWER CORD FROM DAMAGE DUE TO BEING WALKED ON, PINCHED, OR STRAINED.
•UNPLUG THE APPARATUS DURING LIGHTNING STORMS OR WHEN UNUSED FOR LONG PERIODS OF TIME.
•ONLY USE ATTACHMENTS, ACCESSORIES, STANDS, OR BRACKETS SPECIFIED BY THE MANUFACTURER FOR SAFE OPERATION AND TO AVOID INJURY.
•WARNING: TO REDUCE THE RISK OF ELECTRIC SHOCK OR FIRE, DO NOT EXPOSE THIS UNIT TO RAIN OR MOISTURE.
•SERVICE MUST BE PERFORMED BY QUALIFIED PERSONNEL.
•OUR AMPLIFIERS ARE CAPABLE OF PRODUCING HIGH SOUND PRESSURE LEVELS. CONTINUED EXPOSURE TO HIGH SOUND PRESSURE LEVELS CAN CAUSE PERMANENT HEARING IMPAIRMENT OR LOSS. USER CAUTION IS ADVISED AND EAR PROTECTION IS RECOMMENDED IF UNIT IS OPERATED AT HIGH VOLUME.
EXPLANATION OF GRAPHICAL SYMBOLS: |
"DANGEROUS VOLTAGE" |
EXPLICACION DE SIMBOLOS GRAFICOS: |
= “VOLTAJE PELIGROSO” |
EXPLICATION DES SYMBÔLES GRAPHIQUES: |
"DANGER HAUTE TENSION" |
"IT IS NECESSARY FOR THE USER TO REFER TO THE INSTRUCTION MANUAL"
=“ES NECESARIO QUE EL USUARIO SE REFIERA AL MANUAL DE INSTRUCCIONES.” "REFERREZ-VOUS AU MANUAL D'UTILISATION"
3
MODEL J-12T |
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5 |
JET |
II |
5 |
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5 |
TRE |
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4 |
6 |
4 |
6 |
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4 |
6 |
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3 |
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7 |
3 |
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7 |
3 |
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7 |
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2 |
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8 |
2 |
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8 |
2 |
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8 |
1 |
2 |
3 |
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4 |
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5 |
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GUITAR |
ACCORDION |
0 |
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10 |
0 |
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10 |
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0 |
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10 |
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VOLUME |
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B TONE |
T |
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SPEED |
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The Front Panel:
1.Guitar Input accepts the output from your instrument by means of a shielded signal cable. This input signal to this jack is not attenuated and accommodates instruments with standard output signals. If your instrument has a strong output signal, use the Accordion Input (#2).
2.Accordion Input accepts the output from your instrument by means of a shielded signal cable. The signal to this jack is attenuated 6dB to accommodate instruments with stronger output signals.
3.Volume controls the overall output level of the amplifier. At lower volume settings the sound will be clean. As you push the volume higher and crank your guitar the sound becomes distorted.
4.Tone controls the overall tonal character of the amplifier. Rotating the knob toward the “T” (“Treble”) increases the higher frequencies, giving a brighter, more “crisp” sound. Rotating the control towards the “B” (“Bass”) reduces the high frequencies, giving a darker, more
“muffled” sound. The Tone control offers a cut or boost of 30dB at 4kHz.
5.Tremolo-Speed sets the rate at which the tremolo effect “vibrates.” The
Tremolo-Intensity control (#6) must be turned up to hear the effects of this knob’s setting.
4
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