Twb2,
What ultrasonic cleaner are you using? I have seen the loong DIY ultrasonic cleaner thread at diyaudio.com, and that looks mighty promising, though even still, the ultrasonic cleaners, especially those using 60kHz are pretty pricey still.
What ultrasonic cleaner are you using? I have seen the loong DIY ultrasonic cleaner thread at diyaudio.com, and that looks mighty promising, though even still, the ultrasonic cleaners, especially those using 60kHz are pretty pricey still.