Hello people, I need some help with this issue.
(The chip that was supposed to be in the socket is SAB0600, from Siemens.)
I assembled the circuit "textbook style", EXACTLY replicating the circuit shown in the datasheet.
Circuit both assembled as-is on both breadboard and perfboard.
But it doesn't produce any sound when the switch is engaged (it should produce three chimes)
On breadboard, the circuit did make DC clicking noise when 100 microfarad capacitor was inserted backwards.
I do not have a multimeter yet that could reliably check the voltage, but using a trusted 5V power source and tuned analog multimeter, I verified that the power supply is outputting 9V, which is in-spec.
All chips bought from eBay, none of them came in static-safe packaging, not even the pink foam.
I had one sound chip that was not working and UM3482A Melody IC that didn't emit literally ANY noise even with all the components in the right place.
Am I crazy and killed all the chips, or am I stupid and I did something wrong, or was the chip faulty?
Any help is greatly appreciated, please tell me your opinions.
(Image mirrored to provide visual aid)
Sorry for the drunken soldering job, I still have problems with my hands.
