multiple layout files for the same amplifier in altium

Thread Starter

yef smith

Joined Aug 2, 2020
Hello ,i want to import a layout of the amplifier shown in the link below.i opened the ZIP folder and i have there about 10 files.
i know DRR is drill report.
When i googled rest of the files i see that they are the same by definition.
i know that there is no netlist.
How do i know what files i need to recreate the layout in altium?



Joined Jul 24, 2018
After taking a look at a few files in a text editor, I suspect you need all of them. They appear to each be different layers of the board - one Gerber file per layer. Here are what they correspond to:
DRR: Drill File
GD1: Drill drawing for Metal 1 to Metal 3 vias
GD2: Drill drawing for Metal 1 to Metal 2 vias
LDP: Looks to be some layer definition pairs (setting names and whatnot). Don't think it's needed for your layout, but I don't know
REP: Report (from whenever these files were generated). Useful info, but not really needed for the layout. It actually tells you some of the layer names and what they are.
TX1: Seems to specify which holes are plated
GTL: Top Copper
GTS: Top Soldermask
GTO: Top Silkscreen (overlay)
GTP: Top Silkscreen
GBL: Bottom Copper
G1: Inner Copper
TXT: Drill (Gerber)
GM2: Mechanical Outline

If you use an online gerber viewer, you get the following image:
(I used PCBWay's Gerber viewer tool)

Basically, you need all of them except the REP file, and possibly the LDP file (not sure on that one).


Joined Jun 5, 2013
Those ate gerber files. Can Allium import Gerber files? And if it can, all you will have is a board layout, not a schematic.