You can see the discolouration quite clearly.
Attachment 31702
Printable View
You can see the discolouration quite clearly.
Attachment 31702
Yup, compared to my board that is quite a difference.
https://i.postimg.cc/nzt6ySV6/Screen...4-21-52-47.png
Do you think that's because you had it wired up to be powered all the time and have you fixed that now?Quote:
Originally Posted by CageyH
Yes, I think so.
The power switch on the TT has been wired into the power circuit now, so it is fixed.
And on your board, I would not change the resistors.Quote:
Originally Posted by Tim
:thumbsup:Quote:
Originally Posted by CageyH
It seems in reasonably good shape, I have yet to test the capacitors with a multimeter, only done a visual check.
https://i.postimg.cc/j2C2fjVH/mainboard.jpg
That's the current board, the one from Japan is similar, if not a little cleaner.
I don't think a multimeter will give you an accurate reading with the capacitors still fitted to the board.
The next job on the list is to change the output capacitors on the BB3. I have some JLX aluminium foil capacitors arriving next week. These were recommended by Oli.
While I am in there with my soldering iron, I am tempted to change the diodes in the power supply. Standard parts are UF4007, so I was think SF4007 may bring a minor upgrade, potentially lowering the noise floor, very slightly.
I've no idea if that'll work as I've never done it before, just something I was reading recently - I'm learning on the hoof at the moment :oQuote:
Originally Posted by CageyH
I did wonder if that would work, so I'll give it a miss.
If you Techie is from the 80s, the capacitors are 40 years old, so due a change.