Making guitar amplifier no2 New years holiday started from 26th December. I can have free time to make guitar amplifier. I finished making a lot of holes to install electric parts. Unfortunately Two blade of drill was broken to make the holes because the blade is slender. I solder between wire and resistor, capacitor, tube, trans to make power supply. I have to care wiring resistor and magnetic field because guitar amplifier has high voltage and high current. I'm looking forward that the amp sounds. I expect the sounds is warmly and clearly sounds.

Fix Marshall guitar amplifier I and my wife go to Okinawa's pub close to our flat. The meal in Okinawa is delicious and Health. We have been to the pub a lot of times. Therefore we got close to the owner in the pub. One day, He requested to fix his guitar amplifier to me. I agreed his request and connected my guitar to the amp in our flat. The amp sounds loud suddenly. If the knob turns, the amp sounds rasping sound. I tried to clean the contacts of the switch, the potentiometers by using special spray. But the rasping sound didn't leave unfortunately. I ordered new the switch and the potentiometers and replaced their. The rasping sound and suddenly loud sound left. I brought the amp to give him to his pub. I gave him the amp. He smiled and appreciate to me. I was very glad that I have electric circuit skill. My job is not related electric engineer. But I felt that I can contribute to help electric some problems.

Making guitar amplifier no1 I bought electric parts in Akihabara and internet to make guitar amplifier. I designed the position of the holes by using jw cad tool. In last weekend, I made several holes to install valuable resistor and switches and Input-output jack and Indiator like that. In this week, I'm going to make other holes to install tube and output trans...etc.