GA-5 LES PAUL JUNIOR AMPLIFIEROWNER’S MANUALGA-5 LES PAUL JUNIOR AMPLIFIEROWNER’S MANUAL

IMPORTANT SAFETY INSTRUCTIONS

WARNING:TO REDUCE THE RISK OF FIRE OR ELECTRIC SHOCK,DO NOT EXPOSE THIS APPARATUS TO RAIN OR MOISTURE AND OBJECTS FILLED WITH LIQUIDS, SUCH AS VASES, SHOULD NOT

BE PLACED ON THIS APPARATUS.

The lightning bolt warns of the risk of shock from high voltage. Do not tamper with or attempt to open any areas where this warning is present.

The exclamation point alerts the user to an important operating or maintenance instruction.

Conforms to EU directives.

Conforms to North American standards

1. Read these instructions.2. Keep these instructions.3. Heed all warnings.4. Follow all instructions.5. Do not use this apparatus near water.6. Clean only with dry cloth.7. Do not block any ventilation openings. Install in accordance with the manufacturer's

instructions.8. Do not install near any heat sources such as radiators, heat registers, stoves, or other

apparatus (including amplifiers) that produces heat.9. Do not defeat the safety purpose of the polarized or grounding-type plug. A polarized

plug has two blades with one wider than the other. A grounding type plug has two blades and a third grounding prong. The wide blade or the third prong are provided for your safety. If the provided plug does not fit into your outlet, consult an electrician for replacement of the obsolete outlet.

10. Protect the power cord from being walked on or pinched particularly at plugs,convenience receptacles, and the point where thy exit from the apparatus.

11. Unplug this apparatus during lightning storms or when unused for long periods of time.

12. Refer all servicing to qualified service personnel. Servicing is required when the apparatus has been damaged in any way, such as power-supply cord or plug is damaged, liquid has been spilled or objects have fallen into the apparatus, the apparatus has been exposed to rain or moisture, does not operate normally, or has been dropped.

Importanti istruzioni di sicurezza

Tenere l’apparecchio lontano da gocciolamenti o schizzi. Evitare di appoggiare recipienti pienidi liquido sull’apparecchio.

Collegare l’apparecchio solo a prese di corrente dotate di messa a terra di protezione.

La spina all’estremità del cavo elettrico è il dispositivo che consente di scollegarsi dalla rete.“Rete” è il termine ufficiale per designare la fonte di alimentazione elettrica. Inserire la spinanella presa in modo da consentirne sempre un facile accesso.

CONGRATULATIONS ON YOUR NEW

GIBSON GA-5 LES PAUL JUNIOR AMPLIFIER

As the new owner of the Les Paul Junior amplifier, you have joined a great Gibson legacy.When the electric guitar emerged in the 1930s as an instrument with its own voice, Gibsonamplifiers powered that voice. In the 1940s and 1950s, Gibson’s continuing advances in amplifier design matched the company’s celebrated guitar innovations. In 1956, four years afterGibson’s historic partnership with legendary guitarist Les Paul, Gibson introduced the GA-5Les Paul Junior guitar amplifier.

This compact powerhouse became Gibson’s most popular guitar amp of the 1950s.Thousandsof aspiring young electric guitarists got their first taste of pure guitar tone from the Les PaulJunior’s classic all-tube design with point-to-point wiring.

Almost 50 years later, Gibson and Les Paul once again teamed up to create a new Les PaulJunior, inspired by the original all-tube design but with the advantages of modern technology.Today’s Les Paul Junior is handbuilt, featuring original style, single-ended Class A tube circuitry

with point-to-point wiring and only a single Volume control. Its performance is enhanced witha solid-state rectifier for better low-frequency response, a custom-designed Gibson Goldtonespeaker for cleaner tone, and top-quality cabinet components that make it more powerfulthan any other comparable amp.

With a purity of tone that hasn’t been heard in generations, the new Gibson Les Paul Juniorinvites you to plug in, turn up, express yourself and become a part of a great Gibson tradition.

If you ever have a question or concern about anything, any day, any time, please call GibsonCustomer Service at 1-800-4GIBSON (444-2766) or email service@gibson.com

From the Gibson Tone Team atGibson Labs Technology GroupSuite 330159 South Jackson Street Seattle,WA 98104www.gibsonamps.com

Input Jacks

Volume Control On/Off Switch

Power Light

OPERATING INSTRUCTIONS

PLUG YOUR AMP IN

CAUTION: The power cord plug is the designated mains disconnect device. “Mains” is the official term for the electrical power source. Visually inspect the power cord plug for damage before each use. Do not use it if it appears damaged. Keep the powercord plug accessible at all times.Always use a grounded/earthed AC socket. Never use asocket adapter that will not ground the amplifier.To reduce the risk of fire or electricalshock, do not expose your amplifier to rain or moisture.

NOTE: Your Les Paul Jr. amp was wired for the country in which you bought it – 120VAC forU.S., 100VAC for Japan, 230-240VAC for United Kingdom or 220VAC for continental Europe.The voltage specification is on a manufacturer’s tag on the amplifier. If you are in a differentcountry, if the plug on your amplifier’s power cord does not fit the receptacle, or if you haveany doubt about power compatibility, do NOT plug in. See Universal Power Transformerbelow.

TURN IT ON

The Power Switch turns your amplifier ON and OFF.The indicator light glows when the ampli-fier is turned on.

CAUTION: Your amplifier is not disconnected from the mains when the Power Switchis in the OFF position.

PLUG YOUR GUITAR IN

First, turn the Volume knob down – counterclockwise – as far as it will go.Then plug your 1/4-inch plug (standard guitar cord) into one of the two inputs. Input #1 goes direct to the amplification circuitry and produces a bright, loud tone. Input #2 has a “pad” (of 3 db)which produces a softer, darker tone.

TURN IT UP

The GA-5 Les Paul Junior has a single Volume control and no Tone control.With no extrane-ous circuitry to add unwanted tone coloration, the tone is pure and clean.You can change thetone considerably, however, by changing the volume settings on the amp and on your guitar.The Single-ended Class A circuit allows incredible sensitivity to the strong touch response, sofor the cleanest tone, start with the volume control down on your guitar.The amp will reach“break up” at various points depending on the guitar’s volume setting and the type of pickpup.

MORE TECHNICAL INFORMATION

CIRCUIT TOPOLOGY

The preamp and power stage signal paths are both 100% tube.The combination of a singleECC83/12AX7A based preamp and a single 6BQ5/EL84 based power amp yields 5 wattsRMS output.The top quality cabinet materials and the custom-designed efficient Gibson

Goldtone speaker produce a sound far louder than one would expect from a 5 watt amp.Additionally, the GA-5 Les Paul Junior amp is enhanced with a solid state rectifier to improvelow frequency response.

INPUTS

Impedance is at least 47k with a 3 db pad on input #2.

TUBES/VALVES

The Les Paul Junior has two tubes/valves.Viewed from the back of the amp, theECC83/12AX7A is on the left.The 6BQ5/EL84 is on the right.When replacing tubes/valves,be sure to use the same part number as indicated on the amplifier or in the owner’s manual.Always consult your authorized Gibson Amplifier Service Center.

FUSE

The line fuse, located on the underside of the chassis, protects your amplifier against irregulari-ties in the A.C. source, tube failure, component failure, severe overload to the output amplifierand other conditions that can be unsafe or damaging to the amplifier. If your amplifier continu-ally blows the line fuse, there is a problem that must be corrected before the amplifier is putback into service. Contact an authorized Gibson Amplifier Service Center.

For 100V~/120V~ (Japan/U.S.A) use a 5 x 20mm T500mAL250V (Slo Blo) fuse.For 220V~/230-240V~ (Europe/U.K.) use a 5 x 20mm T250mAL250V (Slo Blo) fuse.

To replace the fuse, first remove the power cord. Then use a thin blade prying tool to popout the fuser holder. Remove the old fuse and put the new fuse in the holder. Push the hold-er in until it snaps into place.

NOTE: Never replace the line fuse with a higher amperage rating. It is not only unsafe, but itleaves your amplifier unprotected in the event of a tube or component failure and invalidatesyour warranty.

UNIVERSAL TRANSFORMER

The Mains AC voltage for your GA-5 Les Paul Junior Amplifier was wired for the countrywhere it was originally sold, but each amplifier is equipped with a universal power transformerso that it can be rewired to work in any country that uses V A.C. 50/60Hz.We recommendthat you do not attempt to do this yourself. Please contact your authorized Gibson AmplifierService Center. A list of Gibson Amplifier Service Centers can be found onwww.gibsonamps.com.

SPEAKER

The GA-5 Les Paul Junior amplifier is equipped with an 8" custom-designed Gibson Goldtoneloudspeaker with 15 watts RMS rated power and output impedance of 4 ohms.

IEC SOCKET

An IEC socket allows for connection with various power cables used in different parts of theworld.

AMPLIFIER MAINTENANCE

Besides the normal replacement of the indicator light and vacuum tubes/valves, your Les PaulJunior amplifier should require very little maintenance. However, if you notice a change in theperformance or the sound of the amp, or if have any questions regarding your amp’s perform-ance, please contact your authorized Gibson Amplifier Service Center.

Amplifier Dimensions: 14" H (without handle or feet) x 8 1/2" D x 13 5/8" WAmplifier Shipping Dimensions: 16" x 16" x 10"Amplifier Weight: 17.4 lbsAmplifier Shipping Weight: 20 lbs.

Suite 330 | 159 South Jackson Street | Seattle,Washington USA 98104

1.800.4.GIBSON | service@gibson.com | http://www.gibsonamps.com

Gibson Labs is a Division of the Gibson Guitar Corporation