Amplifier Repair
Serving Minneapolis, St. Paul, Minnesota, and beyond.
ToneTron Amplifiers specializes in the repair, restoration, and modification of all brands of vacuum tube and solid state guitar amps, instrument amps, stereo receivers and amplifiers, jukebox amps, all types of audio gear, and oddball electronic equipment.
Replacing Filter Capacitors on most Fender and Ampeg models costs $150 which includes a complete diagnosis and general overhaul of amp (see following description of General Overhaul).
I offer capacitor replacement for all types, brands, and models of amplifiers. Call or email for prices.
A General Overhaul of an amplifier costs $95 and includes diagnosing circuitry and components, checking and adjusting voltages, reconditioning all potentiometers, jacks, switches, and socket pins, and re-soldering connections and pcb pads.
CALL 612-789-1438 or EMAIL info@tonetronamps.com
You can also drop off amps for repair at:
2523 27th Ave South
Minneapolis, MN 55406
OR
El Diablo Amps and Guitars
2521 27th Ave South
Minneapolis, MN 55406
612-293-7595
eldiabloamps.com
Serving Minneapolis, St. Paul, Minnesota, and beyond.
ToneTron Amplifiers specializes in the repair, restoration, and modification of all brands of vacuum tube and solid state guitar amps, instrument amps, stereo receivers and amplifiers, jukebox amps, all types of audio gear, and oddball electronic equipment.
- Over 30 years experience repairing vacuum tube and solid state amplifiers
- Quick turnaround time
- Flexible drop-off and pick-up times
- Very reasonable prices
- Repair of effects boxes and pedals, preamps, and studio gear
- If I can’t fix it, I won’t charge you. But I can fix it.
Replacing Filter Capacitors on most Fender and Ampeg models costs $150 which includes a complete diagnosis and general overhaul of amp (see following description of General Overhaul).
I offer capacitor replacement for all types, brands, and models of amplifiers. Call or email for prices.
A General Overhaul of an amplifier costs $95 and includes diagnosing circuitry and components, checking and adjusting voltages, reconditioning all potentiometers, jacks, switches, and socket pins, and re-soldering connections and pcb pads.
CALL 612-789-1438 or EMAIL info@tonetronamps.com
You can also drop off amps for repair at:
2523 27th Ave South
Minneapolis, MN 55406
OR
El Diablo Amps and Guitars
2521 27th Ave South
Minneapolis, MN 55406
612-293-7595
eldiabloamps.com
ToneTron Amps guitar amp repair and modification
Amplifier Restoration
Restoration of vintage amplifiers are guided by the customer’s request. Services include:
- Replacing worn components
- Re-tensioning tube socket pins or, if necessary, replacing tube sockets
- Cleaning all sockets, potentiometers, switches, and jacks
- Repairing and recovering cabinets (not currently offered)
Amplifier Modification
Modification of an amplifier depends on the type of amp.
A popular mod is the conversion Fender Reissue amps from printed circuit board (PCB) to point-to-point circuit connection. Depending on the model, prices start at $600 (includes new potentiometers, jacks, capacitors, and resistors). Turnaround time is three to four weeks. See info under Fender Blues Jr. mods if you live outside the Twin Cities Minnesota area and would like to ship an amp chassis to me for modification.
Currently I'm offering a package deal on Fender Blues Jr. modifications. $150 gets you the following mods:
If you live outside of the Twin Cities Minnesota area, you can ship the amp's chassis. A Blues Jr. chassis is very easy to remove and inexpensive to ship. Call or email for instructions and shipping info. Turnaround time is one week to ten days from the time I receive the chassis plus return shipping time.
VOX AC4-C1 Mods for $150. Improve overall tone of amp, especially overdrive tone. Gets rid of the shrill, lackluster tone and makes the amp sound more like the vintage AC4. Note that this mod package is for the C1 model of AC4.
Modifications of various kinds can be done to most tube amps with limitations for those using pc boards.
As a rule, I don’t modify solid-state amps; however, there are always exceptions to any rule.
Email me with your ideas and I’ll let you know if it’s feasible for me to modify the amp.
Examples of Some Recent Repairs and Modifications:
Modification of an amplifier depends on the type of amp.
A popular mod is the conversion Fender Reissue amps from printed circuit board (PCB) to point-to-point circuit connection. Depending on the model, prices start at $600 (includes new potentiometers, jacks, capacitors, and resistors). Turnaround time is three to four weeks. See info under Fender Blues Jr. mods if you live outside the Twin Cities Minnesota area and would like to ship an amp chassis to me for modification.
Currently I'm offering a package deal on Fender Blues Jr. modifications. $150 gets you the following mods:
- Add extra filtering to the power supply
- Modify tone stack for better control and range of bass, mid, and high frequencies
- Make treble control more usable by modifying the amp's excessive brightness
- Replace plastic input jack with metal jack
- Modify bias circuit for longer tube life
- Redress leads to decrease background noise
- Stabilize phase inverter circuit to prevent oscillation
- Reconfigure reverb circuit on early "green board" models
If you live outside of the Twin Cities Minnesota area, you can ship the amp's chassis. A Blues Jr. chassis is very easy to remove and inexpensive to ship. Call or email for instructions and shipping info. Turnaround time is one week to ten days from the time I receive the chassis plus return shipping time.
VOX AC4-C1 Mods for $150. Improve overall tone of amp, especially overdrive tone. Gets rid of the shrill, lackluster tone and makes the amp sound more like the vintage AC4. Note that this mod package is for the C1 model of AC4.
Modifications of various kinds can be done to most tube amps with limitations for those using pc boards.
As a rule, I don’t modify solid-state amps; however, there are always exceptions to any rule.
Email me with your ideas and I’ll let you know if it’s feasible for me to modify the amp.
Examples of Some Recent Repairs and Modifications:
See Payment & Contact Info tab for further details regarding repair, restoration, and modification of amplifiers.