Re: U1 fried
I wonder if a small light bulb. like the old standby #47 could protect a speaker short.
Maybe some type fast
lo-mass fast Thermistor? Something that has small
resistance, but goes up quickly with a short.
Just thinking crazy.
On 2/28/2018 4:06 PM, Clark Martin wrote:
The chip is rated to work with a 4Ω load so a 4Ω resistor should do. I doubt the chip would blow so fast that FB fuse wouldn’t protect it. Clark Martin KK6ISPOn Feb 28, 2018, at 4:00 PM, Jerry Gaffke via Groups.Io <jgaffke@...> wrote: Better be a pretty darn fast fuse. I'll go with an 8 ohm 1/2 watt series resistor to limit current. At least till I find a good source for TDA2822M chips. I'm fairly certain that resistor will offer sufficient protection.
-- Mike Hagen, WA6ISP 10917 Bryant Street Yucaipa, Ca. 92399 (909) 918-0058 PayPal ID "MotDog@..." Mike@...