How to double check your amp wiring and find things you missed

[EL34]

I created this animation that shows how well the tracing technique works for double checking your work
Please do this first before posting questions in the forum
Hoffman's law states the the amp would be working if everything was correct

(1) Print your layout in grayscale on your printer
(2) Use a colored sharpie or highlighter pen
(3) Start at the left end of the paper diagram and put your finger or a wooden chopstick on the part or wire you are checking
(4) Check all jumper wires, parts values and wires leading to and from the board
(5) If the part or connection is correct, then highlight that on your diagram

When you are done, if something is not highlighted, then you missed checking that item or you connected something wrong

The animated diagram below will cycle through 6 different images
This just gives you a good idea how the process works

[archaos]

Cool, thanks !

[MakerDP]

That is a great method.

I actually take it a step further and highlight both my layout diagram and the schematic. That serves as a double-check against my layout and a triple-check against my wiring. I do it as I build too.

It's also a great way to document a build that you've tweaked and forgot/was-too- lazy-to document what you changed as you did it.

[EL34]

That is a great method.
I actually take it a step further and highlight both my layout diagram and the schematic. That serves as a double-check against my layout and a triple-check against my wiring. I do it as I build too.
It's also a great way to document a build that you've tweaked and forgot/was-too- lazy-to document what you changed as you did it.

excellent method
I wish all were that thorough with their builds

[DummyLoad]

i use a pencil instead of a highlighter. when i check the layout against the schematic, is when i mark up the schematic.


--pete

[Fresh_Start]

That is a great method.

I actually take it a step further and highlight both my layout diagram and the schematic. That serves as a double-check against my layout and a triple-check against my wiring. I do it as I build too.

It's also a great way to document a build that you've tweaked and forgot/was-too- lazy-to document what you changed as you did it.

Highlighting the schematic and the layout drawing simultaneously also helps find any inconsistencies between the two.

Cheers,

Chip

[MakerDP]

That is a great method.
I actually take it a step further and highlight both my layout diagram and the schematic. That serves as a double-check against my layout and a triple-check against my wiring. I do it as I build too.
It's also a great way to document a build that you've tweaked and forgot/was-too- lazy-to document what you changed as you did it.

excellent method
I wish all were that thorough with their builds

I actually found an error on someone else's layout doing this! Fortunately it was before I soldered anything but it was after I installed the turrets.

(Don't worry, it was on another amp-building site  )

[EL34]

I actually take it a step further and highlight both my layout diagram and the schematic.
That serves as a double-check against my layout and a triple-check against my wiring.

I only do that when first designing my Turret Boards
By build time the layout should be 100% correct and good to go

[sluckey]

I like to use a highlighter on busy schematics when drawing a board layout. I also use a highlighter when installing jumpers on a complicated turret board such as this. So far I haven't missed or misplaced any jumpers. It would not be funny to discover a missing or misplaced jumper during troubleshooting, especially if it was under the board!

[EL34]

Yeah, that would suck to find out later you missed a jumper
You could do a top jump, but it would not be as pretty