My apologies! (Now modified to Open Discussion!)

[petercharlesfagg]

My friends,

My apologies for requesting the locking of my thread concerning LED's and PPI's.

I was in ignorance of the procedures for forum protocols regarding solved questions.

I therefore thought that locking was the correct method.

Regards, Peter.

[Geoff]

Peter it was your thread but by keeping a thread open it helps other further down the line to ask other questions about the subject.

[Bealman]

No probs, Peter. All cool. 

[scotsoft]

You did nothing wrong Peter and your request was made with the best of intentions and that is why I locked it at your request.

cheers John.

[MalcolmInN]

Peter it was your thread but by keeping a thread open it helps other further down the line to ask other questions about the subject.

Yes !
I dont think we got to the bottom of this reverse breakdown stuff and I was going to ask some more about it, but I dont think I dare now

[Geoff]

Peter it was your thread but by keeping a thread open it helps other further down the line to ask other questions about the subject.

Yes !
I dont think we got to the bottom of this reverse breakdown stuff and I was going to ask some more about it, but I dont think I dare now

Just go for it Malcolm nothing to do with I dare you, you see I might learn something new. 

[scotsoft]

I dont think we got to the bottom of this reverse breakdown stuff and I was going to ask some more about it, but I dont think I dare now

There is no reason whatsoever why you cannot ask for more information 

cheers John.

[austinbob]

Peter it was your thread but by keeping a thread open it helps other further down the line to ask other questions about the subject.

Yes !
I dont think we got to the bottom of this reverse breakdown stuff and I was going to ask some more about it, but I dont think I dare now

OK Malcolm - you asked for more info - get your teeth into this....
I found this link which talks about what actually causes reverse breakdown. The majority seem to think its the current/power dissipated by the diode when reverse biased that causes the breakdown, but no one seems to have established how much power is required. So, in your circuit (or was it Malcs?) with a resistor in series with each diode and the two sets connected in parallel in opposite polarity the resistor in series may limit the reverse current sufficiently to prevent damage.
The article also reports a huge variation in breakdown voltage, often much higher than the speced 4 to 5 volts. Here's the link - enjoy
http://electronics.stackexchange.com/questions/173283/what-destroys-a-led-in-the-reverse-direction

[GroupC]

Peter you're such a gentleman, I love reading your messages even if they have nothing to do with what I'm up to!

If life (in general I mean, it's all very friendly here in the NGF) had more petercharlesfagg's in it, it would be a much better place.

Cheers sir, keep posting!

[austinbob]

Peter you're such a gentleman, I love reading your messages even if they have nothing to do with what I'm up to!

If life (in general I mean, it's all very friendly here in the NGF) had more petercharlesfagg's in it, it would be a much better place.

Cheers sir, keep posting!

Seconded and Thirded

[MalcolmInN]

Peter it was your thread but by keeping a thread open it helps other further down the line to ask other questions about the subject.

Yes !
I dont think we got to the bottom of this reverse breakdown stuff and I was going to ask some more about it, but I dont think I dare now

OK Malcolm - you asked for more info

Thanks Bob, very intersting
but prob. best not in this thread

[Geoff]

Peter it was your thread but by keeping a thread open it helps other further down the line to ask other questions about the subject.

Yes !
I dont think we got to the bottom of this reverse breakdown stuff and I was going to ask some more about it, but I dont think I dare now

OK Malcolm - you asked for more info

Thanks Bob, very intersting
but prob. best not in this thread

Of course not you know where it goes 

[petercharlesfagg]

Peter it was your thread but by keeping a thread open it helps other further down the line to ask other questions about the subject.

Yes !
I dont think we got to the bottom of this reverse breakdown stuff and I was going to ask some more about it, but I dont think I dare now

OK Malcolm - you asked for more info - get your teeth into this....
I found this link which talks about what actually causes reverse breakdown. The majority seem to think its the current/power dissipated by the diode when reverse biased that causes the breakdown, but no one seems to have established how much power is required. So, in your circuit (or was it Malcs?) with a resistor in series with each diode and the two sets connected in parallel in opposite polarity the resistor in series may limit the reverse current sufficiently to prevent damage.
The article also reports a huge variation in breakdown voltage, often much higher than the speced 4 to 5 volts. Here's the link - enjoy
http://electronics.stackexchange.com/questions/173283/what-destroys-a-led-in-the-reverse-direction

Bob, I have no wish to belittle your efforts, they are praiseworthy, but may I suggest like our mutual friend that starting a new thread might be a better idea?

Warmest regards, Peter.

[MalcolmInN]

Peter it was your thread but by keeping a thread open it helps other further down the line to ask other questions about the subject.

Yes !
I dont think we got to the bottom of this reverse breakdown stuff and I was going to ask some more about it, but I dont think I dare now

OK Malcolm - you asked for more info

Thanks Bob, very intersting
but prob. best not in this thread

Of course not you know where it goes 

Yes, I know but if I did I would risk getting that one closed as well

Oh dear, now I've got Bob into trouble as well

[austinbob]

Peter it was your thread but by keeping a thread open it helps other further down the line to ask other questions about the subject.

Yes !
I dont think we got to the bottom of this reverse breakdown stuff and I was going to ask some more about it, but I dont think I dare now

OK Malcolm - you asked for more info

Thanks Bob, very intersting
but prob. best not in this thread

Of course not you know where it goes 

Yes, I know but if I did I would risk getting that one closed as well

Oh dear, now I've got Bob into trouble as well

No problem - perhaps one of our illustrious moderators could stick this bit of the thread where they like (figuratively speaking of course!!) and let us know where they've put it. Then we can carry on with our electronic musings for as long as we like or we find something good to watch  on the telly.