Owner`s manual

J-20 Jet All-Tube Guitar Amplifier with Tremolo

Introduction

Congratulations!

You are now the proud owner of an Ampeg J-20 Jet all-tube guitar amplifier.

This no-compromise combo amplifier packs 20 watts of vintage tube sound with a classic

tremolo effect into its retro-style cabinet, providing you with an amp that is portable and easy

to operate, yet still produces incredible sounds!

Part of the Diamond Blue Lead Series, the J-20’s preamp section boasts not one, but three

12AX7 tubes that drive a pair of 6V6 power tubes into a 12-inch alnico speaker, with point-to-

point wiring throughout to insure solid and reliable connections.

The J-20 Jet features a Volume and Tone control, a Speed and Intensity control for the tremolo

section, and a footswitch for turning the tremolo on and off.

Like all Ampeg products, your J-20 Jet amplifier is designed by musicians and built using only

the best components. Each amplifier is tested to confirm that it meets our specifications, and

we believe that this amplifier is the absolute best that it can be.

In order to get the most out of your new amplifier, please read this manual before you begin

playing.

And thank you for choosing Ampeg.

Here are some of the features packed into your new J-20 Jet Combo Amplifier:

• Two 6V6 power vacuum tubes for smooth overdrive sound

• 20 watts rms power output

• 1 x 12" alnico speaker

• Extension speaker output for adding additional speakers (8 ohm minimum)

• Two inputs, Bright and Normal

• Volume control

• Tone control

• Tremolo Speed and Intensity controls

• Footswitch option for turning tremolo effect on and off