Problems with TDA1541A S1 markings

[sparkle]

Hi guys!

A month or so I have bought a few TDA1541A S1 chips. They have arrived yesterday... All the chips look good accept one off them has different markings then the others. It has no crown on it only S1 marking.
Text on the chips with the crown is:

TDA1541A S1 11260 HBH9613 2 (crown)

Text on the chip that has no crown is:

TDA1541A S1 11260 HBH9623 2


if someone knows what this means I would appreciate......
thanks in advance
daniel

[Audiofanatic]

Hi Daniel,

I just checked my TDA's and found out that the S1 has a crown printed half on the chip and the other half is not printed on the two shining spots on the chip.

So I think that you probably have a S1 with one crown but was not printed on the chip. Or someone send you the chip and by mistake he/she send you a standard TDA1541 instead of the real S1.


Best regards,


Audiofanatic

[sparkle]

Hi!
Oh, I belive it is the chip with the S1 and crown but for some reason the crown is missing. Maybe it is mistake as You said.
thanks for reply
daniel

[nicoch58]

HI this a real S1

I grab 6/7year ago at local elettronic store