Rear Panel Controls - Gibson “Goldtone” GA-15 Operating Instructions Manual

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Table of Contents

INTRODUCTION

The Gibson "Goldtone" GA-15, GA-15RV & GA-30RVS are no nonsense, compact, purist

valve guitar amplifiers. They have the minimum controls necessary to produce a good

range of sounds, from clean to overdriven.

However, with the addition of such features as a switchable gain boost, stereo effects

loop, pseudo-stereo reverb, and a stereo power stage, the "Goldtone" GA-30RVS model

takes the range as far as it could possibly go.

The circuit topology has been based on traditional guitar amplifier designs, with new

ideas incorporated where beneficial.

The preamp and power stage sections are 100% valve. The valves used are:

"Goldtone" GA-15

Two ECC83/12AX7's and two EL84/6BQ5's run in Class A.

"Goldtone" GA-15RV

Two ECC83/12AX7's and two EL84/6BQ5's run in Class A.

"Goldtone" GA-30RVS

Four ECC83/12AX7's and four EL84/6BQ5's run in Class A in stereo (two EL84's per side).