200 Times Gain LM386 Audio Amplifier Amplitude Module Board with Adjustable Resistance Control Potentiometer for Arduino Raspberry Pi or Musical Projects(Pack of 5)

these are LM 36 audio amplifier modules available on ebay for around $1 each including postage how good are they I'll hook them up to a crystal set and we'll have a listen here's another demonstration this time speaking into a rocking armature earpiece you'll notice the audio is very sharp and communications quality probably more a reflection of the microphone than the amplifier I'll just put my ring finger on the I see it's moderately warm now I'll speak louder and longer oh well within three seconds it's too hot to touch each Anand Bruce Lee and all those crazy martial artists so we absolutely body I grew up with your six brothers even getting nothing can learn - other kids never mind bashing other kids let's try and bash this amplifier with some increased audio and we'll apply it for longer we'll get the camera close up on the chip so if there's some fireworks you'll see them shut up