two tone siren sound with ic 4093

**broken link removed**

This circuit, you can create a siren has two characteristics, the automatic is a siren. Sirens and custom. The circuit uses CMOS nand gate digital IC number IC 4093 features Quad 2-Input NAND Schmitt Trigger makes it easy to use and very diverse. This circuit can be used with speakers or amplifiers to additional offline..........

The problem with this and other images you have posted is they are too small to read. Your first image in your other thread required some digging with the link to view an actually understandable image. This image as posted is useless. I can't read it, can you?

Ron

This might help:
https://www.redcircuits.com/Page5.htm