This gentleman's name is Mike and repairs tube and transistorized cb/ham radios and amps mudduck_1@netzero.net he's in pa and his turnaround time is a day or two depending on what you need done. Finally a trusted tec who's lightning fast with the knowlage and expertise exspected. You can contact him at the above address and let him know what you need. Good luck. P.s. he is a true tec and not the golden screwdriver type. He replaced the capacitors three tubes and as aligned my sonar in hours. The 2340 works as it did when it was new.