First generation devices with rework and frequency adaptation

[roughshawd]

I have bought a few of these after market devices that are very useful but have been discarded because they are reworks and some have quirks, jerks or shocks that they ended up with, in the reworking. Most failed because of bad or wrongful manufacture of a piece of the device that connects to it. Sometimes the rework could have been avoided entirely if a wire would have been put in the proper place instead of where it was. There is a big difference between a fatal error in programming, and completely corrupt system, but with todays devices, it's all about what works and what doesn't. Got any ideas or thoughts on this?

 

[kellys_eye]

If it works, use it. If it doesn't then either fix it or dump it.

 

[Martaine2005]

What are these devices?
You talk in riddles and leave us hanging!.

Martin

 

[ramussons]

What do these these do? What are they used for?