“Sound Advice from Gerald Weber”

Everything you wanted to ask about Vacuum Tube Guitar Amplifiers. Foreword by Aspen Pittman.

As an advice columnist for over 20 years in three major guitar magazines, Gerald Weber has probably answered more tube amp questions than anyone. In Gerald’s 5th book about Vacuum Tube Amplifiers, he answers over 300 useful questions including:

• Page 13 - Understanding Electronic Concepts
• Page 109 - Getting Blues Harp tone from any guitar amp
• Page 125 - Converting a Bassman to cathode bias
• Page 139 - How to re-lacquer a tweed amp
• Page 143 - Making a Line out mod for any tube amp
• Page 149 - Getting the "Layla" tone from your Tweed Champ
• Page 167 - Converting 6L6s to 6V6s on Twin, Showman, Pro or Bandmaster
• Page 169 - Output transformer / Speaker deliberate mismatch
• Page 178 - Filter Chokes de-mystified
• Page 198 - Rewiring a 6SC7 to 12AX7
• Page 221 - Negative Feedback Explained
• Page 239 - Troubleshooting any reverb circuit
• Page 249 - Amp mods for 12-string Electric use
• Page 258 - Wiring a switchable tube / solid-state recitifier
• Page 260 - Adding a 3-knob reverb on any blackface amp for under $10
• Page 272 - Troubleshooting noise, hum and hiss
• Page 356 - Diode clipping
• Page 394 - Converting 7591A to 6L6
• Page 400 - Speaker Codes
• Page 416 - Testing a potentiometer for Audio or Linear taper
• Page 465 - Reading resistor codes
• Page 471 - Calculating resistor wattages