Hi, I have a small ultrasonic cleaner. It's frequency is 40kHz, and I want to increase it to about 50%. I expect about 15W output. Which parts I should change? I suspect the two blue capacitors, but I'm not sure. My knowledge in electronics is low.
Some details: The ic is the 555, for on/off and timer purposes, including the relay and the small trnasistor. The above left part (in reference to Photo 017.jpg) is the AC input, and the upper part the AC-->DC. The transformer drives the transducer. The low part is the oscillator (two transistors, some resistors 1 and 1/2W, a few capacitors and two diodes). The torroidal transformer I don't know what it does.
Does anyone know which parts to change? I don't know to change the transformer if it needed. I will try with the same transformer. Output wattage is not significant.
Thank you