So I bought this one for purely sentimental reasons. I could have paid double for something in a perfect state but I opted for something that calls for some love and attention... at the end I'll know what's inside.
It works, sounds a bit flat on lower volumes, and throws two "thumps" after about 3 sec when powered off, only to the right channel. Inside is a spiderweb of hot glue threads and a pair of undistiguishable blue cans of 6.800mF, much smaller than originals. Even some hot glue mess on poles of those capacitors (whyyyy?!). I see hot glue around smaller capacitors on the board as well and like tiny brownish burn marks on the two 6-pin transistors/semi-conductors on the board, could be just burned dust. (pictures coming soon)
But what disturbs me is the layout of transistors and I need advice there from you guys (see the image)
Previous owner(s) probably used what was salvageable from the original PL909's and moved them all to the right, then replacing left two grids with 2SC1116 and BUX48A at the bottom.
I already exchanged some emails with Don from Watts Abundant and protection relay/board is on its way. I'm gonna get a pair of those 15k cans from WO but when I dive into the guts I'm not closing it before these transistors are sorted out. I need some guidance with them and resistors which I should use next to them. Electronics are not my field though I know my way around with soldering... but anything more complex that this, someone else has to do it. It is going to stay quasi for now, until time and budget opens up for the board and backplates.
Thoughts?
It works, sounds a bit flat on lower volumes, and throws two "thumps" after about 3 sec when powered off, only to the right channel. Inside is a spiderweb of hot glue threads and a pair of undistiguishable blue cans of 6.800mF, much smaller than originals. Even some hot glue mess on poles of those capacitors (whyyyy?!). I see hot glue around smaller capacitors on the board as well and like tiny brownish burn marks on the two 6-pin transistors/semi-conductors on the board, could be just burned dust. (pictures coming soon)
But what disturbs me is the layout of transistors and I need advice there from you guys (see the image)
Previous owner(s) probably used what was salvageable from the original PL909's and moved them all to the right, then replacing left two grids with 2SC1116 and BUX48A at the bottom.
I already exchanged some emails with Don from Watts Abundant and protection relay/board is on its way. I'm gonna get a pair of those 15k cans from WO but when I dive into the guts I'm not closing it before these transistors are sorted out. I need some guidance with them and resistors which I should use next to them. Electronics are not my field though I know my way around with soldering... but anything more complex that this, someone else has to do it. It is going to stay quasi for now, until time and budget opens up for the board and backplates.
Thoughts?
