Imagine sitting on the front row of Gerald Weber's Tube Guitar Amplifier Forum! You will learn more in 4 hours than you could have otherwise in 5 years! Learn about: wirewound and carbon composition resistors • output transformer design • phase inverters • electrolytic capacitors • signal tracing and troubleshooting • isolating hum • DC and AC circuits • parasitic circuits and their cures • tube amb and speaker design • and much more! In addition Weber answers real questions in plain talk. Recommended for all experience levels.