Re: U1 fried

Jerry Gaffke
 

Now that we have a bunch of sources for the part,
I might be more inclined to experiment.

Resistance of a small incandescent bulb can go up a factor of 10 when it gets hot:  https://groups.io/g/BITX20/message/21901 
That or a fuse would be easier to replace than an 8 pin dip.


On Wed, Feb 28, 2018 at 07:10 pm, Michael Hagen wrote:

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.

Mike, WA6ISP

 

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