23-04-2015, 06:21 PM
Someone said if you contact the base of a transistor with a screwdriver when the set is on, you should get a loud audio sound. I tried it on a much older Bush 1959 radio and, yes, this is correct. Now, I tried this too0 when testing my other faulty Bush and recall no sound at all. I was also getting low voltage readings around the transistor so removed it temporarily.
I was a bit confused about positive earth in this case. I do have some positive earth radios but these have an actual chassis. Where would the earth be on a PCB?
I was a bit confused about positive earth in this case. I do have some positive earth radios but these have an actual chassis. Where would the earth be on a PCB?
