i am a industrial electrician, i am 27 years old and i have been in the electrical field for 8 years. i have had my maryland master electrcian's license for almost one year. i want to know more about electronics fopr troubleshooting PLC's i went to a four year apprienticeship school but not much was discussed on the lower voltage side. i am looking for a good electronics school in the maryland area or online. any advice will be a help thanks