Welcome to Solid State Guitar Amp Forum | DIY Guitar Amplifiers. Please login or sign up.

March 28, 2024, 07:40:13 PM

Login with username, password and session length

Recent Posts

 

Reverse polarity protection

Started by flester, February 07, 2019, 05:08:25 AM

Previous topic - Next topic

flester

I neglected to add reverse protection to my LM386 amp and broke. It is basically the Little Gem/Smokey amp.
https://goo.gl/images/3dqb9b
It powers on but no output. I am checking all the caps and the IC.
Anything else I should check?
What type of diode should I (have) use(ed) for reverse polarity?

Sent from my SM-G930F using Tapatalk


66cccfff

Quoting from Youtuber ElectroBoom, you need a FULL BRIDGE RECTIFIER!......no, a single puny diode (1n4007) would be ok.