音響線材製作班 X 隔離牛製作班 : 一個價錢, 兩個課程

Hi Modi Sir,

I made cheque payment , pls confirm my enrollment.
Thanks

9n銅

Are my 隔離牛 work properly..???? it show 236V ..?? so the a/c supply in my building is 230V..?? right. Modi ???? pls chk chk.

Thanks Panson,
I got same answer from HK Electric Co, voltage always show 233~237.
I am going to buy a more accurate multitester  to chk.
This 隔離牛 is fine to me
- not generate heat
- sound stable
- improve 弱音
Thanks