Originally Posted by firemansailorjim
I have a Bearcat 101 that my wife gave me for a wedding present 35 years ago. I think it was the first synthasyzed scanner on the market. Does anyone know someone who might be able to repair it?
I've seen a lot of those over the past year or three that have bad memory chips in them. I saw a post at one time where a guy found a different memory chip that worked but it was quite a hack as it used an entirely different type of refresh signal to retain the memory contents from what I recall. I tried a few years back to find the memory chips that guy had used and those were no longer available just like the originals that Electra used in the 101's.
I know some still have working 101's but I think that many have failed. Especially the ones that were powered up 24x7 for years on end.
Every single one I worked on had the failed memory chips.
Maybe someone else has found a substitute chip that will work but I have not searched for it in a long time. I seriously doubt a pin for pin replacement will ever be found.
The old RadioShack Pro-2001 scanners also suffered from the same failure but they used a different chip. I was able to find a few spares at one time from a guy overseas that working in the 2001.