Pete is, as always, being humble.
The Matching SUT for this phono stage is equally substantial
Still enough room for the kitchen basin
Heat sink???
So do I fire it up this weekend?
Not the best terminology, granted
Lol, I see what I did there now. Freud wound have a field day.
Letās get drunk tonight and you can set up your turntable
Thereās a seduction technique you donāt often see.
Whack it on with a broom just in case.
It looks fantastic, and Iām sure itāll sound the same. Good to see that craftsmanship is not dead !
VB
Thank you! Not sure I could be called a craftsman, but I aspire to it and am learning all the time. (Mainly about how much I donāt know)
You and me alike ! I fear I may have to learn how to desolder a 14-pin TSSOP without frying the hair-thin pcb tracks underneath it later today :-(.
VB
Oh boy.
The SMD stuff is a nightmare.
Hot air rework station is your friend.
Thought they were platinum
Hot air rework station is your friend.
True, although they can risk loosening a lot of other stuff. I have a mate who has a fitting for his Metcal iron and I might arrange to go over to him.
The annoying thing is that there are five chips all wired to the same 5V Vcc line and one (I think) is duff (trying to pull way too much current). I can only find out which one it is by disconnecting them. I canāt even slit the individual Vcc tracks (not that Iād do that with a customerās pcb in any case) because at least some of the chips are supplied by a track which runs from the Vcc pin back under the chip body and is then viaed down into the 5V rail on the pcbās underside.
My last trick will be to see if I can detect one of the chips running hotter than all of the others.
VB
You and me alike ! I fear I may have to learn how to desolder a 14-pin TSSOP without frying the hair-thin pcb tracks underneath it later today :-(.
VB
good luckā¦
If you donāt need the chip snip itās legs off first. Or make an attachment that will heat all the legs up.
If you donāt need the chip snip itās legs off first.
I could (with care) but theyāre not pennies each http://uk.farnell.com/maxim-integrated-products/max5437eud/digital-pot-50k-single-tssop-14/dp/2516224. Furthermore the manufacturer (allegedly) characterises each one and programs their individual properties into the microcontroller which manages the volume and balance settings. So it would be best not to trash any that I donāt have to.
VB