Bottlehead Forum

Bottlehead Kits => Mainline => Topic started by: Tabaia on March 24, 2025, 06:35:35 PM

Title: Mainline Questions
Post by: Tabaia 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?

Title: Re: Mainline Questions
Post by: Paul Birkeland on March 24, 2025, 07:01:30 PM

Resistors are not directional.

Title: Re: Mainline Questions
Post by: Tabaia on March 24, 2025, 07:18:39 PM

great , thank you.

Title: Re: Mainline Questions
Post by: Tabaia on March 24, 2025, 07:19:31 PM

hence no info added about the direction in the manual :)

Title: Re: Mainline Questions
Post by: Tabaia on March 24, 2025, 08:26:07 PM

Could i please get confirmation that this capacitor is in the correct position.

Title: Re: Mainline Questions
Post by: Tabaia on March 24, 2025, 09:17:44 PM

I think i figured it out - Could someone confirm the position of the film Capacitor

Title: Re: Mainline Questions
Post by: Paul Birkeland on March 25, 2025, 04:44:06 AM

The second way is more correct than the first, but both would work.

Title: Re: Mainline Questions
Post by: Tabaia 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?

Title: Re: Mainline Questions
Post by: Paul Birkeland 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.

Title: Re: Mainline Questions
Post by: Tabaia on March 25, 2025, 04:38:53 PM

Hi Paul,

Here are the pictures.
Thanks for your support

Title: Re: Mainline Questions
Post by: Paul Birkeland on March 25, 2025, 05:54:20 PM

Definitely more heat is needed, and a tiny bit of extra solder.

Title: Re: Mainline Questions
Post by: Tabaia 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.

Title: Re: Mainline Questions
Post by: Paul Birkeland on March 25, 2025, 06:22:44 PM

Yes, when you get the solder hot enough, it will suck into the board a bit.

https://www.youtube.com/watch?v=EN16Pi7pcfk (https://www.youtube.com/watch?v=EN16Pi7pcfk)