For anyone who likes to assemble the DIY gadget, help me find a circuit diagram?

[gembelmantanjutawan]

I assemble TENS device, the circuit based from google search but the result is bad, where at the output I using isolation transformer however generate little shock sensation and like needle piercing, Can you help me find the proper diagram to assemble a good therapeutic tool ?

 

[classicsat]

No. For liability reasons, that is something you need to get from a qualified manufacturer, and is approved as a medical device.