Precisely, I couldn't find the ICI LM308, so I changed it with CA3130. Equally, I'd to switch the transistor 2N5458 with NTE312. I assume my problem lies in my inadequate choice of alternate options for both of those transistor and ICI. Could any person recommend some alternatives? 衣服；（尤指某種用途的）服裝 You are https://wardz998htm6.blog-a-story.com/profile