[DynamicDave]

Looking for ready-to-etch file for cmoy amp PCB.
Looked at PCB ARTIST but looks like a steep learning curve.

Resistor divider virtual ground circuit and also using the TLE2426 if I can get both.

Any format but PDF file would be ideal for proper scaling.

I built a couple using the Tangent site. Came out well.
Easy build.

Would like to do with PCB's

Appreciate it if anyone can provide the files.

 

[DynamicDave]

Anybody have these??

 

[Tjj226 Angel]

Well if you google "Cmoy eagle file", you get a few options.

There are several versions and modifications of a cmoy amp though, so IDK what you are specifically looking for.

 

[DynamicDave]

I looked at several sites, nothing inspired me,
Some strange layouts, boards are a lot bigger than
the size of Tangents.
I built 3 following Tangent's layout.

Would like to get PCB's following layout and size from Tangent's build guide.

Used DipTrace to make schematic, but when I try
converting to PCB, it comes out strange.
Can't figure it out for converting to PCB.

This took all day to render, most of the time
was figuring out where everything was.
Wish I was more "versed" at using DipTrace.

The board's I made using Tangent's site measure
about 50mmX35mm.
Perfect size.
Rendered on a PCB following Tangents layout I imagine
it could be made a little smaller without crowding components.

This was done in Dip Trace.

 

[DynamicDave]

Well, after trying for hours trying to convert the schematic to PCB in DipTrace and
not having any luck, I decided to do a "pad and trace" design.
This is what I came up with::::


Board 38mmX35mm (about 1 1/2 inch by 1 3/8 inch)
Extra pad for C1 is for larger caps if so inclined.
Same for C2. Up to 25mm lead spacing. (orange drops maybe??)
Like Tangent's build guide, wiring up jacks, pots, and led is the same.
Same for power to opamp. have to jumper it to pin 4 and 8

Based it on this I found somewhere after looking at different designs all day.

 

[Darkblade48]

Do you mean something like the above? Or were you looking for something that is more hand etchable friendly?

My design mounts the input/output jacks as well as the RK097 Alps pot. It measures around 50x30 mm, if I remember correctly.

 

[DynamicDave]

That looks nice.

Looking for something I can self-etch.
Never tried to etch a double sided design yet.

Working (trying to) on a couple simple single sided designs.

Have you priced having those boards made?

 

[Darkblade48]

That looks nice.

Looking for something I can self-etch.
Never tried to etch a double sided design yet.

Working (trying to) on a couple simple single sided designs.

Have you priced having those boards made?

I haven't even checked to make sure the PCB traces are correct , much less considering getting them fabbed. I'd assume JLCPCB would be the cheapest ($2 or so), but the online quotation is charging me $12 for shipping (5 boards total).

Might be worth having 'em made if I can verify the board is good

 

[DynamicDave]

This is what I came up with so far:

Mock up:

Etched
E

 

[DynamicDave]

Completed boards.
Still need to do pot/jacks hookup to test operation.

 

[Darkblade48]

Lovely! What's the size of that board?

 

[DynamicDave]

The wide board is 50 X 30mm (2 X 1-1/4 inch)
Smaller board is 37 X 35mm (1-1/2 X 1-7/16inch)

 

[DynamicDave]

Working on a CMOY with 1 or 2 TLE2426 rail splitters.

Have to get the size down some and do a mock-up

 

[Darkblade48]

Working on a CMOY with 1 or 2 TLE2426 rail splitters.




Have to get the size down some and do a mock-up

What would be the advantage of having two TLE2426? I thought one should be sufficient.

You might as well consider using a buffer at this rate

 

[DynamicDave]

Low impedance iem's will be pushing it with some opamps.
Ensure enough power with high impedance

Will only be running 1-9v batt
Just to ensure enough power on the rails.