Amplifier Services

• Repair and electronic restoration
• Re-tube and bias work
• Amplifier blueprinting, modifications, de-modifications
• 21 point tube amp service
• Test tubes for emissions, mutual conductance, shorts and leakage
• Check voltages, bias currents and operating conditions
• Clean tube sockets, potentiometers, input and output jacks and chassis
• Check components for drifted out of tolerance values, leakage or damage
• Check for loose connections, cold solder joints, defective wiring, etc.
• Replace defective components such as power supply and bypass electrolytic capacitors
• Check chassis hardware for loose nuts, bolts, screws, etc.
• Output power, gain and distortion measurements
• Bench testing and play tests using an actual instrument

Only the highest quality parts are used

• Sprague Atom and F&T electrolytic capacitors
• Switchcraft jacks, CTS and Alpha pots
• Components are selected for vintage correct restorations

General repairs and troubleshooting

Mathes Amplification also repairs solid-state instrument and power amplifiers, musical electronics, effects pedals, sound reinforcement equipment and tube Hi-Fi gear

Specialized electronic and electrical work

Custom wiring, custom cables, sound system installation

Custom built hand wired amplifiers