Found a piece of PCB, see if I am luck to meet a master know some thing about it, what it is?
Thanks
Adam

 

hello.
Cannot read the chips write down what they are and I'll tell you what it is.

 

hello.
Cannot read the chips write down what they are and I'll tell you what it is.

Thanks.
Attached.

 

Found a piece of PCB, see if I am luck to meet a master know some thing about it, what it is?
Thanks
Adam

I don't know anything about circuits or electronics, as a layperson my guess would be it belonged to a speaker or signal processor. I searched for two chips you wrote in the second pic, and they voltage regulator and operational amplifier.

 

I would say it's an Audio Preamp of some type, the LM324 are Quad op amps, ..

 

Thanks.

 

The MC14541B programmable timer consists of a 16−stage binarycounter, an integrated oscillator for use with an external capacitor andtwo resistors, an automatic power−on reset circuit, and output control logic.

https:
https://www.onsemi.com/pub/Collateral/MC1455-D.PDF
//www.onsemi.com/pub/Collateral/MC14541B-D.PDF
timers and opamps, and big coil, and pots..IDK
the 9L05 is a -5V regulator. With a bit of effort, and the backside picture, a lot of that circuit could be drawn out.