Whereas an electric guitar with 60W PMPO (Peak Music Power Output) costs around $8, here is a cost effective solution to convert a Hawain guitar to an electric guitar. The circuit can also be used as an ampli-speaker with a tape recorder or a radio receiver.
The unit can easily be assembled on a standard TBA810 ampli-speaker PCB available in the market. It is also be housed in an ampli-speaker box.
Do not try altering the single- transistor preamplifier and power supply stages, or you may end up with severe distortion and unwanted noises.
The circuit has been extensively tested and retested to the satisfaction of our musically-gifted friends. It has been tried successfully even with standard electric guitars.
Pick-up coil, the heart of the unit, is available in musical instrument shops as a ‘magnetic touch pick-up for Hawain guitars’. Its price varies from $1 to as much as $2. Only a good quality, high-gain pick-up should be used.
After assembling the circuit, for testing, switch it on and hit the pick-up gently with a screwdriver. The should produce some amplified sound.