11-25-2013, 08:15 PM
It turned out that the ultrasonic cleaner my son had was defective due to vinegar getting on the internal circuit board and corroding it very bad. Parts came loose and it went phffffft when I plugged it into the AC socket. I went ahead and used some hot distilled water and some detergent and soft brush to clean. I am not too happy with the results, but it does look better. I may get a replacement ultrasonic cleaner, as we often have a need for such an item.
I have a question about the rubber grommets on the mounting studs of the ganged tuning capacitor. They cushion the mounting of the condenser, probably to prevent microphonic feedback. The ones on this unit are cracking. I think the GPH-RFTR grommets shown on Renovate Radios website are the correct ones. Can someone confirm?
Joe
I have a question about the rubber grommets on the mounting studs of the ganged tuning capacitor. They cushion the mounting of the condenser, probably to prevent microphonic feedback. The ones on this unit are cracking. I think the GPH-RFTR grommets shown on Renovate Radios website are the correct ones. Can someone confirm?
Joe