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tech / sci.electronics.design / Re: Looking for IC

SubjectAuthor
* Looking for ICJohn S
+* Re: Looking for IClegg
|`- Re: Looking for ICJohn S
+* Re: Looking for ICRicky
|`* Re: Looking for ICJohn S
| `- Re: Looking for ICRicky
`* Re: Looking for ICthree_jeeps
 +- Re: Looking for ICJohn Doe
 `* Re: Looking for ICRicky
  `* Re: Looking for ICLasse Langwadt Christensen
   +* Re: Looking for ICRicky
   |`- Re: Looking for ICThree Jeeps
   `- Re: Looking for ICThree Jeeps

1
Looking for IC

<t5vblq$b7m$3@dont-email.me>

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From: Soph...@invalid.org (John S)
Newsgroups: sci.electronics.design
Subject: Looking for IC
Date: Tue, 17 May 2022 00:26:16 -0500
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 by: John S - Tue, 17 May 2022 05:26 UTC

SOIC-8 3-line Part marking:

83433
IBZ (or 1BZ)
W839EUE

I used Dave's method of the transparent tape to read it. Worked great!

Many thanks for any help you can provide.

Re: Looking for IC

<9bf78ht67fr4ijrplmcl6m020p540cj69r@4ax.com>

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From: leg...@nospam.magma.ca (legg)
Newsgroups: sci.electronics.design
Subject: Re: Looking for IC
Date: Tue, 17 May 2022 11:32:09 -0400
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 by: legg - Tue, 17 May 2022 15:32 UTC

On Tue, 17 May 2022 00:26:16 -0500, John S <Sophi.2@invalid.org>
wrote:

>SOIC-8 3-line Part marking:
>
>83433
>IBZ (or 1BZ)
>W839EUE
>
>I used Dave's method of the transparent tape to read it. Worked great!
>
>Many thanks for any help you can provide.

Try ABLIC - Seiko (SII) ~ S-8540xxx.
That's a family of buck regulators in that ~ package.

RL

Re: Looking for IC

<067c5635-235c-4633-b77d-4cbf988c4620n@googlegroups.com>

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Subject: Re: Looking for IC
From: gnuarm.d...@gmail.com (Ricky)
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 by: Ricky - Wed, 18 May 2022 00:51 UTC

On Tuesday, May 17, 2022 at 1:26:25 AM UTC-4, John S wrote:
> SOIC-8 3-line Part marking:
>
> 83433
> IBZ (or 1BZ)
> W839EUE
>
> I used Dave's method of the transparent tape to read it. Worked great!
>
> Many thanks for any help you can provide.

Can't help you with this one. What is that method? Is it just to put tape over the part and make the laser etching stand out better?

--

Rick C.

- Get 1,000 miles of free Supercharging
- Tesla referral code - https://ts.la/richard11209

Re: Looking for IC

<t65m7a$h5t$1@dont-email.me>

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From: Soph...@invalid.org (John S)
Newsgroups: sci.electronics.design
Subject: Re: Looking for IC
Date: Thu, 19 May 2022 10:03:01 -0500
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 by: John S - Thu, 19 May 2022 15:03 UTC

On 5/17/2022 7:51 PM, Ricky wrote:
> On Tuesday, May 17, 2022 at 1:26:25 AM UTC-4, John S wrote:
>> SOIC-8 3-line Part marking:
>>
>> 83433
>> IBZ (or 1BZ)
>> W839EUE
>>
>> I used Dave's method of the transparent tape to read it. Worked great!
>>
>> Many thanks for any help you can provide.
>
> Can't help you with this one. What is that method? Is it just to put tape over the part and make the laser etching stand out better?
>

Yes. It is explained in short on EEVblog site.

Re: Looking for IC

<t65mi5$h5t$2@dont-email.me>

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From: Soph...@invalid.org (John S)
Newsgroups: sci.electronics.design
Subject: Re: Looking for IC
Date: Thu, 19 May 2022 10:08:48 -0500
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 by: John S - Thu, 19 May 2022 15:08 UTC

On 5/17/2022 10:32 AM, legg wrote:
> On Tue, 17 May 2022 00:26:16 -0500, John S <Sophi.2@invalid.org>
> wrote:
>
>> SOIC-8 3-line Part marking:
>>
>> 83433
>> IBZ (or 1BZ)
>> W839EUE
>>
>> I used Dave's method of the transparent tape to read it. Worked great!
>>
>> Many thanks for any help you can provide.
>
> Try ABLIC - Seiko (SII) ~ S-8540xxx.
> That's a family of buck regulators in that ~ package.
>
> RL

Thank you, Robert, I shall.

Re: Looking for IC

<df293c7f-b2d4-40f0-9014-b36559212ac9n@googlegroups.com>

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Subject: Re: Looking for IC
From: gnuarm.d...@gmail.com (Ricky)
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 by: Ricky - Thu, 19 May 2022 15:21 UTC

On Thursday, May 19, 2022 at 11:03:15 AM UTC-4, John S wrote:
> On 5/17/2022 7:51 PM, Ricky wrote:
> > On Tuesday, May 17, 2022 at 1:26:25 AM UTC-4, John S wrote:
> >> SOIC-8 3-line Part marking:
> >>
> >> 83433
> >> IBZ (or 1BZ)
> >> W839EUE
> >>
> >> I used Dave's method of the transparent tape to read it. Worked great!
> >>
> >> Many thanks for any help you can provide.
> >
> > Can't help you with this one. What is that method? Is it just to put tape over the part and make the laser etching stand out better?
> >
> Yes. It is explained in short on EEVblog site.

Oh, THAT Dave. Got it.

--

Rick C.

+ Get 1,000 miles of free Supercharging
+ Tesla referral code - https://ts.la/richard11209

Re: Looking for IC

<48fd02f3-3e1e-4b52-b52c-ef0781b1a052n@googlegroups.com>

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Subject: Re: Looking for IC
From: jjhu...@gmail.com (three_jeeps)
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 by: three_jeeps - Thu, 19 May 2022 19:30 UTC

On Tuesday, May 17, 2022 at 1:26:25 AM UTC-4, John S wrote:
> SOIC-8 3-line Part marking:
>
> 83433
> IBZ (or 1BZ)
> W839EUE
>
> I used Dave's method of the transparent tape to read it. Worked great!
>
> Many thanks for any help you can provide.
"Daves Method' ? - place Scotch tape over IC to make the text readable???

Re: Looking for IC

<t6662a$cph$1@dont-email.me>

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From: always.l...@message.header (John Doe)
Newsgroups: sci.electronics.design
Subject: Re: Looking for IC
Date: Thu, 19 May 2022 19:33:31 -0000 (UTC)
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 by: John Doe - Thu, 19 May 2022 19:33 UTC

three_jeeps <jjhudak@gmail.com> wrote:

> John S wrote:

>> SOIC-8 3-line Part marking:
>>
>> 83433
>> IBZ (or 1BZ)
>> W839EUE
>>
>> I used Dave's method of the transparent tape to read it. Worked great!
>>
>> Many thanks for any help you can provide.

> "Daves Method' ? - place Scotch tape over IC to make the text readable???

???

Re: Looking for IC

<6bee581c-2d40-4879-86a1-99726197d40bn@googlegroups.com>

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Subject: Re: Looking for IC
From: gnuarm.d...@gmail.com (Ricky)
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 by: Ricky - Thu, 19 May 2022 20:03 UTC

On Thursday, May 19, 2022 at 3:30:33 PM UTC-4, three_jeeps wrote:
> On Tuesday, May 17, 2022 at 1:26:25 AM UTC-4, John S wrote:
> > SOIC-8 3-line Part marking:
> >
> > 83433
> > IBZ (or 1BZ)
> > W839EUE
> >
> > I used Dave's method of the transparent tape to read it. Worked great!
> >
> > Many thanks for any help you can provide.
> "Daves Method' ? - place Scotch tape over IC to make the text readable???

He appears to be talking about something Dave of EEVblog must have talked about. I assume it takes advantage of the near transparency of the tape when in good contact with an object, hence the name "transparent" tape. Where the laser etching has left tiny, otherwise difficult to see voids, the tape does not adhere and the frostiness makes the etching more clear to see.

--

Rick C.

-- Get 1,000 miles of free Supercharging
-- Tesla referral code - https://ts.la/richard11209

Re: Looking for IC

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Subject: Re: Looking for IC
From: langw...@fonz.dk (Lasse Langwadt Christensen)
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 by: Lasse Langwadt Chris - Thu, 19 May 2022 20:09 UTC

torsdag den 19. maj 2022 kl. 22.03.27 UTC+2 skrev Ricky:
> On Thursday, May 19, 2022 at 3:30:33 PM UTC-4, three_jeeps wrote:
> > On Tuesday, May 17, 2022 at 1:26:25 AM UTC-4, John S wrote:
> > > SOIC-8 3-line Part marking:
> > >
> > > 83433
> > > IBZ (or 1BZ)
> > > W839EUE
> > >
> > > I used Dave's method of the transparent tape to read it. Worked great!
> > >
> > > Many thanks for any help you can provide.
> > "Daves Method' ? - place Scotch tape over IC to make the text readable???
> He appears to be talking about something Dave of EEVblog must have talked about. I assume it takes advantage of the near transparency of the tape when in good contact with an object, hence the name "transparent" tape. Where the laser etching has left tiny, otherwise difficult to see voids, the tape does not adhere and the frostiness makes the etching more clear to see.
>

this isn't Dave but shows pictures with and without tape : https://twitter.com/joegrand/status/985962672683343872

Re: Looking for IC

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Subject: Re: Looking for IC
From: gnuarm.d...@gmail.com (Ricky)
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 by: Ricky - Thu, 19 May 2022 20:17 UTC

On Thursday, May 19, 2022 at 4:09:31 PM UTC-4, lang...@fonz.dk wrote:
> torsdag den 19. maj 2022 kl. 22.03.27 UTC+2 skrev Ricky:
> > On Thursday, May 19, 2022 at 3:30:33 PM UTC-4, three_jeeps wrote:
> > > On Tuesday, May 17, 2022 at 1:26:25 AM UTC-4, John S wrote:
> > > > SOIC-8 3-line Part marking:
> > > >
> > > > 83433
> > > > IBZ (or 1BZ)
> > > > W839EUE
> > > >
> > > > I used Dave's method of the transparent tape to read it. Worked great!
> > > >
> > > > Many thanks for any help you can provide.
> > > "Daves Method' ? - place Scotch tape over IC to make the text readable???
> > He appears to be talking about something Dave of EEVblog must have talked about. I assume it takes advantage of the near transparency of the tape when in good contact with an object, hence the name "transparent" tape. Where the laser etching has left tiny, otherwise difficult to see voids, the tape does not adhere and the frostiness makes the etching more clear to see.
> >
> this isn't Dave but shows pictures with and without tape : https://twitter.com/joegrand/status/985962672683343872

Marginal improvement with the good camera they are using. I bet a bit of chalk dust or talcum powder would work better, but who has chalk anymore? lol! Then you have to keep it out of the electronics...

I wonder if a tiny bit of moisture on your finger to pick up some talc, wiping it over the etchings would work? That would keep it from making a mess..

--

Rick C.

-+ Get 1,000 miles of free Supercharging
-+ Tesla referral code - https://ts.la/richard11209

Re: Looking for IC

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Subject: Re: Looking for IC
From: jjhud...@gmail.com (Three Jeeps)
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 by: Three Jeeps - Sat, 21 May 2022 14:41 UTC

On Thursday, May 19, 2022 at 4:09:31 PM UTC-4, lang...@fonz.dk wrote:
> torsdag den 19. maj 2022 kl. 22.03.27 UTC+2 skrev Ricky:
> > On Thursday, May 19, 2022 at 3:30:33 PM UTC-4, three_jeeps wrote:
> > > On Tuesday, May 17, 2022 at 1:26:25 AM UTC-4, John S wrote:
> > > > SOIC-8 3-line Part marking:
> > > >
> > > > 83433
> > > > IBZ (or 1BZ)
> > > > W839EUE
> > > >
> > > > I used Dave's method of the transparent tape to read it. Worked great!
> > > >
> > > > Many thanks for any help you can provide.
> > > "Daves Method' ? - place Scotch tape over IC to make the text readable???
> > He appears to be talking about something Dave of EEVblog must have talked about. I assume it takes advantage of the near transparency of the tape when in good contact with an object, hence the name "transparent" tape. Where the laser etching has left tiny, otherwise difficult to see voids, the tape does not adhere and the frostiness makes the etching more clear to see.
> >
> this isn't Dave but shows pictures with and without tape : https://twitter.com/joegrand/status/985962672683343872
Thank you!

Re: Looking for IC

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Subject: Re: Looking for IC
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 by: Three Jeeps - Sat, 21 May 2022 14:50 UTC

On Thursday, May 19, 2022 at 4:17:39 PM UTC-4, Ricky wrote:
> On Thursday, May 19, 2022 at 4:09:31 PM UTC-4, lang...@fonz.dk wrote:
> > torsdag den 19. maj 2022 kl. 22.03.27 UTC+2 skrev Ricky:
> > > On Thursday, May 19, 2022 at 3:30:33 PM UTC-4, three_jeeps wrote:
> > > > On Tuesday, May 17, 2022 at 1:26:25 AM UTC-4, John S wrote:
> > > > > SOIC-8 3-line Part marking:
> > > > >
> > > > > 83433
> > > > > IBZ (or 1BZ)
> > > > > W839EUE
> > > > >
> > > > > I used Dave's method of the transparent tape to read it. Worked great!
> > > > >
> > > > > Many thanks for any help you can provide.
> > > > "Daves Method' ? - place Scotch tape over IC to make the text readable???
> > > He appears to be talking about something Dave of EEVblog must have talked about. I assume it takes advantage of the near transparency of the tape when in good contact with an object, hence the name "transparent" tape. Where the laser etching has left tiny, otherwise difficult to see voids, the tape does not adhere and the frostiness makes the etching more clear to see.
> > >
> > this isn't Dave but shows pictures with and without tape : https://twitter.com/joegrand/status/985962672683343872
> Marginal improvement with the good camera they are using. I bet a bit of chalk dust or talcum powder would work better, but who has chalk anymore? lol! Then you have to keep it out of the electronics...
>
> I wonder if a tiny bit of moisture on your finger to pick up some talc, wiping it over the etchings would work? That would keep it from making a mess.
>
> --
>
> Rick C.
>
> -+ Get 1,000 miles of free Supercharging
> -+ Tesla referral code - https://ts.la/richard11209

FWIW, per your wondering, I've put a bit of saliva on my fingertip and rubbed it across the IC. Works in some cases. Haven't tried talc, chalk dust. A colleague requested that the white board in his office get replaced with a black board and they did it. Even got him colored chalk as well. Yes, still around.

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