My candidates for the replacement of C1 were - ( @ 5:08 I misspoke the brand, it is NOT a Cornell Dublier Capacitor) United ( Nippon) Chemi-Con GPD series ( Marked GPD on top) EGPD350ELL472MM30H - 4700uF - 35VDC Würth Elektronik - WCAP-ATUL series - Man# 860040581021 - 4700uF - 35VDC - 10K hours @ 105C As you see, I used the United Chemi-Con - Diameter & lead pitch was the same as the original. (all 18.0 x7.5mm) I chose these caps due to the high hour rating at temperature, and to the higher ripple current ratings, making them more suited to install on a unfiltered side of a DC rectifier bridge. 3K hours @ 135C@ 4:20 - I most likely did not have the best lead zero on the MESR meter, and possibly not the best attempt at a good connection with the original cap, but further testing with 2 other devices later on verifies the ESR of the original cap is very close to the 2 brand new ones I measured against.
THAT....is a good spot, BUT, that is also the OUTPUT of the PA251 going to the LC102. If you go to part 1 @ 15 mins and 40 Seconds, you can see that the line cord's green lead is connected to the other end of that screw and to the transformers core laminations, so, all is well. Why they chose the output color configuration they did is a mystery, but in order to correct it I would need to rewire the socket on the LC102, and then it would not conform to other units that have been made in case they ever get separated and connected to different units. Thanks for the note though, it made me investigate it better.
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My candidates for the replacement of C1 were - ( @ 5:08 I misspoke the brand, it is NOT a Cornell Dublier Capacitor)
United ( Nippon) Chemi-Con GPD series ( Marked GPD on top) EGPD350ELL472MM30H - 4700uF - 35VDC
Würth Elektronik - WCAP-ATUL series - Man# 860040581021 - 4700uF - 35VDC - 10K hours @ 105C
As you see, I used the United Chemi-Con - Diameter & lead pitch was the same as the original. (all 18.0 x7.5mm)
I chose these caps due to the high hour rating at temperature, and to the higher ripple current ratings,
making them more suited to install on a unfiltered side of a DC rectifier bridge.
3K hours @ 135C@ 4:20 - I most likely did not have the best lead zero on the MESR meter, and possibly not the best attempt at a good connection with the original cap, but further testing with 2 other devices later on verifies the ESR of the original cap is very close to the 2 brand new ones I measured against.
At about 1:00 into the video, it shows the BLACK lead going to the transformer case, WRONG, that power supply is wired wrong, very unsafe.
THAT....is a good spot, BUT, that is also the OUTPUT of the PA251 going to the LC102. If you go to part 1 @ 15 mins and 40 Seconds, you can see that the line cord's green lead is connected to the other end of that screw and to the transformers core laminations, so, all is well. Why they chose the output color configuration they did is a mystery, but in order to correct it I would need to rewire the socket on the LC102, and then it would not conform to other units that have been made in case they ever get separated and connected to different units. Thanks for the note though, it made me investigate it better.
@@poormanselectronicsbench2021 True I did not see PART 1, glad all is good, I had thought that was the line cord HOT side....LOL
@@old64goat If in fact that were the case, that would be QUITE troubling, I agree!