Re: For those who believe in electricity

On 4/8/2025 6:20 PM, Jeff Liebermann wrote:

On Tue, 8 Apr 2025 16:00:01 -0400, Zen Cycle <funkmaster@hotmail.com>
wrote:
 

On 4/8/2025 3:04 PM, Frank Krygowski wrote:

On 4/8/2025 1:40 PM, Zen Cycle wrote:

On 4/8/2025 12:44 PM, Frank Krygowski wrote:

On 4/7/2025 2:58 PM, Zen Cycle wrote:

>

Just as a matter of personal interest, can you read the numbers off
the 16 pin IC?

It has no numbers or other codes at all! It's solid black with a sort
of fine stippled finish.
>

>
Take another look. I can see 4 rows of text but the resolution on the
picture isn't good enough to make it out. FWIW, it's the square device
in your second picture with 4 solder joints on each side, next to the
octagonal device with "220" written on it (that's a 220uH inductor,
likely part of a PWM or PS switcher circuit).

>
Sorry, Zen, it absolutely has no writing on it. I don't know if I can
manage a micro photograph to convince you, but I'm using a high powered
loupe in sunlight. It's just a stippled black finish.
>
>

>
Try again, using this as a reference:
>
https://1drv.ms/i/c/5c034a6b86a172e9/EX6snfFdTeJMl1tfB4xqOUwBXw_4YXVPsbTNjw04Bpgcdw?e=lFRSWg
>
4 lines of text. I think I can make out 4x35x on the first line, but
that's it.

 I tried feeding the original photo to an online AI photo enhancer:
<https://yce.perfectcorp.com/photo-enhance>
The photo is too far out of focus to produce more than a few
characters.

I can still see some blurred text in the first of the newer photos, but no real improvement. The other newer photo and the larger version of that he sent subsequently is a bad angle, looks more like the "solid black with a sort of fine stippled finish." he's describing

 Frank.  If you photograph something at an angle as in the photo of the
PCB, the depth of field will limit the surface area that will be in
focus.  I suggest you take the photo again and position the camera
more perpendicular to the PCB.

The light will need to be angled to enhance the etching on the part. An omnidirectional light source can obscure the etching (I know this from personal experience).
  Don't position the camera perfectly

perpendicular or you might see a reflection.  If your camera has an
autofocus area mode feature, that allows you focus on a specific area
of interest, it will autofocus on this area of interest and blur
everything outside this area.  The area of interest is usually the
center of the screen, but on some cameras, can be resized and moved
anywhere on the image.
 Also, brighter light will improve the depth of field.  (Smaller
apertures have a greater depth of field).  However, don't use a point
source of light or your photos will have shadows.
 "What are Autofocus Area Modes? | Camera Focusing Basics Pt.3"
<https://www.youtube.com/watch?v=nlzlKZWUI38>