lm386 quick/easy test circuit?

[spitso]

hi all

I have built the circuit shown below (audio amplifier using lm386). Replaced the chip today after i had destroyed the last one due to stupidly supplying wrong voltage polarities. I also added a diode to protect it, but as i connected it the chip gets hot aswell theres was smoke that came from the diode. 12v.

Is there an easy test circuit i can use to determin if me ic has blown again?
Anyone might think of the problem?

thanks

 

[duffy]

If you got the power backwards (happens to everyone) you usually blow the chip, sorry. Get a new one.

 

[Sceadwian]

The lm386 probably went right after the diode.

 

[MikeMl]

The simple gain of 20 audio amp shown on the spec sheet is about as simple test circuit as you could make.**broken link removed**

 

[audioguru]

Spitso,
The schematic that you attached didn't appear. Please attach it again so we can see what it is missing.

 

[Hero999]

Build the square wave oscillator on page 5 of the datasheet.
https://www.electro-tech-online.com/custompdfs/2009/04/LM386.pdf