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Wayne's BA 2018 linestage
Wayne's BA 2018 linestage
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Old 27th September 2020, 08:45 PM   #1771
flamethrower1 is offline flamethrower1  United States
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Wayne's BA 2018 linestage
Cant seem to find the right lighting/microscope combination to read the value on these caps and my meter does not have a way to measure these.
Can someone tell me which one is 5pF
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Old 27th September 2020, 09:07 PM   #1772
Zen Mod is offline Zen Mod  Serbia
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Wayne's BA 2018 linestage
nope from that pic

use camera of your phone, turn on the torch ( cam function) and zoom

it works as lens
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Old 27th September 2020, 09:16 PM   #1773
amandarae is offline amandarae  Philippines
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Quote:
Originally Posted by booja30 View Post
I still have to do all my signal wiring, but I did my layout so I could possibly add some partitions if needed:



This is a 2U Slimline chassis. Since I had extra headroom inside I added the optional bottom plate (installed upside down). The wires from the IEC to the front switch go underneath. After the switch it goes to a terminal block with a noise suppression cap. Then the power splits to the two 15VA transformers, each with its own fuse. I am hoping that putting the transformers into the corners helps with any noise.

If there is a noise issue I can see 2 options. Buy some angle iron and install between the PSUs and the preamp. I also have a large piece of mu-metal (I think) that came with my F5 transformer. Assuming I don't need it in the F5 I may cut it and wrap it around the smaller transformers. I won't be bending it, just making a smaller circle, so hopefully that doesn't ruin the mu-metal.

Fun stuff! Haven't tested anything with speakers yet though, just multimeters, so it will definitely be interesting using the BA2018 and F5 for the first time!
Nice!!!
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Old 27th September 2020, 09:27 PM   #1774
6L6 is offline 6L6  United States
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Wayne's BA 2018 linestage
Quote:
Originally Posted by flamethrower1 View Post
Can someone tell me which one is 5pF
The ones NOT on the tape.
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Old 27th September 2020, 09:29 PM   #1775
flamethrower1 is offline flamethrower1  United States
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Wayne's BA 2018 linestage
Thanks, I forgot I had a hand held microscope, that worked
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Old 28th September 2020, 12:11 AM   #1776
flamethrower1 is offline flamethrower1  United States
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Wayne's BA 2018 linestage
What I accomplished during my solder huffing this weekend.
Just about done with the main board, eyes were wigging out on me and the Packer game is going to be on soon, time to hang it up.
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Old 28th September 2020, 12:28 AM   #1777
Monk55 is offline Monk55  United States
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Wayne's BA 2018 linestage
Nice smd welds!
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Old 28th September 2020, 12:48 AM   #1778
flamethrower1 is offline flamethrower1  United States
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Wayne's BA 2018 linestage
I can not take any credit for that, another member from the forum generously did that for me.
My eyes are not as good as they used to be.
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Old 28th September 2020, 12:57 AM   #1779
Monk55 is offline Monk55  United States
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Wayne's BA 2018 linestage
I had to buy a second board
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Old 28th September 2020, 01:05 AM   #1780
flamethrower1 is offline flamethrower1  United States
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Wayne's BA 2018 linestage
Ha so did I.
Had the PSU, the Salas, and the main board with the 209s soldered, on my kitchen counter top.
My dog actually grabbed and destroyed the main board, noticed in the pics you can actually see his slobber marks that I didnt clean up.
Glad he stopped at one board.
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