Mainline Questions

Tabaia · 579

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Offline Tabaia

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on: March 24, 2025, 06:35:35 PM
Hello , I am just staring on the Bias / Regulator board, first stumble is the 499 ohm resistor - which way up/down?
Yellow on the top or red on the top?



Offline Paul Birkeland

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Reply #1 on: March 24, 2025, 07:01:30 PM
Resistors are not directional.

Paul "PB" Birkeland

Bottlehead Grunt & The Repro Man


Offline Tabaia

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Reply #2 on: March 24, 2025, 07:18:39 PM
great , thank you.



Offline Tabaia

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Reply #3 on: March 24, 2025, 07:19:31 PM
hence no info added about the direction in the manual :)



Offline Tabaia

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Reply #4 on: March 24, 2025, 08:26:07 PM
Could i please get confirmation that this capacitor is in the correct position.



Offline Tabaia

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Reply #5 on: March 24, 2025, 09:17:44 PM
I think i figured it out - Could someone confirm the position of the film Capacitor



Offline Paul Birkeland

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Reply #6 on: March 25, 2025, 04:44:06 AM
The second way is more correct than the first, but both would work.

Paul "PB" Birkeland

Bottlehead Grunt & The Repro Man


Offline Tabaia

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Reply #7 on: March 25, 2025, 04:05:18 PM
Hi Paul,

Thank you for your feedback.
Would it be ok to send you pictures of the boards with components and soldering for some feedback?



Offline Paul Birkeland

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Reply #8 on: March 25, 2025, 04:13:26 PM
You can post them here.  So far, I'd suggest either turning the iron temp up all the way or holding on the joints a little longer so they flow out a bit more.

Paul "PB" Birkeland

Bottlehead Grunt & The Repro Man


Offline Tabaia

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Reply #9 on: March 25, 2025, 04:38:53 PM
Hi Paul,

Here are the pictures.
Thanks for your support



Offline Paul Birkeland

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Reply #10 on: March 25, 2025, 05:54:20 PM
Definitely more heat is needed, and a tiny bit of extra solder.

Paul "PB" Birkeland

Bottlehead Grunt & The Repro Man


Offline Tabaia

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Reply #11 on: March 25, 2025, 06:01:40 PM
so, my understanding is that I should go over all the solder joints, reheat and add a little solder as well.



Offline Paul Birkeland

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Reply #12 on: March 25, 2025, 06:22:44 PM
Yes, when you get the solder hot enough, it will suck into the board a bit.


Paul "PB" Birkeland

Bottlehead Grunt & The Repro Man