Guitar amplifiers boost the quality of the sound produced by musical instruments during performances. They make it possible for audience to hear clearly the tones being produced by the instrument. Considering that they are strained by external factors such as dust and unfavorable weather conditions, they should be maintained regularly by an expert. This person should have an in depth knowledge and experience with the musical instruments. Highlighted below are some advices on
guitar amplifier repair tasks that will help sustain the lifespan of this crucial instrument.
Examine the filter caps frequently to ensure that they are in the correct state. When you notice any abnormality with them, immediately seek technical advice from a technician and let him/her replace the caps with new ones. The amplifier might fail to work as required if the caps are not maintained well. On the same, pay key attention to the big caps for they get faulty easily than the others.
On the same, you should ensure that tube sockets are tightened occasionally since they loosen up after using the guitor amp for some time. This task must be carried out by a technician because there is high voltage on the tube sockets. However, if you must do it yourself, use a good screwdriver and tighten it carefully. When carrying out this task, check for any corrosion and apply cleaner on it to avoid more damage.
The scratchy pot should be kept in clean at all time. When it is cloaked with dirt, it can make your amplifier to go silent abruptly. Some dust, cobwebs, dodgy wires and insect carcasses get stuck in the pot and it is imperative to wash it with a squirt cleaner on frequent basis.
Moreover, you should tighten all the bolts and screws holding the power transformer, back panel on the cabinet, the feet or glides, as well as the mounts of the chassis. If these bolts and screws become loose, the back panel will be vibrating sympathetically as the music goes on hence compromising the quality of the tone. You can get a toolkit to aide you in tightening of the bolts and screws.
Furthermore, hire a technician who is qualified and experienced to come and examine resistors in the amplifier. The technician is able to determine the suitability of the resistors and if necessary he/she will advise you to get new ones and replace the faulty ones.
At the power stage, you have very large and resilient resistors. You need to check them regularly and replace them if it is necessary. This is because at this stage, there is very high voltage and power present which normally messes up with the resistors. The task of replacing the faulty resistors must be carried out by experienced technician to ensure that they are done correctly with the appropriate ratings to avoid short circuiting the whole amplifier.
More importantly, determine the state of the tone circuit and coupling capacitors. To avoid short circuiting the entire equipment, please inquire from an expert about capacitors. It may be necessary to replace the faulty capacitors with the new ones. Make sure these match the ratings of the circuit.