[Premium-Rx] WJ8888 wonder radio

[GandalfG8 at aol.com]

I have to agree with Richard on this one.
The 723 may be versatile, and convenient to use, but it is also notorious for 
being unreliable.
I've experienced more problems with PSUs based on the 723 than with any other 
integrated circuit regulator.
They don't have to be run outside their limits or in any way overstressed 
either for failures to occur.
The general failure mode seems to be catastrophic.
However, I've also seen them apparently continuing to function but with the 
output voltage drifting up over a period of time despite the peripheral 
components remaining in tolerance.
This can still have some pretty severe consequences in more basic PSUs 
without proper over voltage protection.
I would never recommend the 723 for new designs and, unless there's a very 
real desire to keep something original, would strongly suggest replacing any 723 
based circuits with one of the many, and more reliable, alternatives.
regards
Nigel
G8PZR



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