12 May
2020
12 May
'20
6:40 p.m.
On Sun, 10 May 2020, Peter Coghlan via cctalk wrote:
If the holder is the same as with the H7826 PSU, then it's a generic part
still manufactured. I bought whatever was the minimum quantity sold by
Farnell when I broke one along with the LED a few years ago. I still have
a few available and I could post one set once I am back to my UK home
(which is given the current situation regrettably not going to happen
anytime soon). Otherwise you can order it yourself:
<https://uk.farnell.com/broadcom-limited/hlmp-0103/mounting-clip-ring-5mm-led/dp/8576378>.
I chose an LED matching the original colour, also of the case, as closely
as possible:
<https://uk.farnell.com/vishay/tlhg5205/led-5mm-green/dp/1045482>, but
still haven't installed it (well, ahem, I need to fix the PSU itself
first), so I can't comment on the result. I could post one of those along
with the holder if needed (subject to the condition noted above).
An LED will dim with use, so you may not be able to closely match a worn
one with a brand new part, but I suppose you don't actually need to be
*that* exact with your equipment, do you? Otherwise you can always put a
resistor in series to dim the light produced.
HTH,
Maciej
I seem to
remember people saying it is quite difficult to replace these,
mainly because you can't get them out without breaking the holder. Is that
right? Has anyone done this successfully and have any tips?
Is this the green LED in a H7821 PSU? I managed to get one out of the holder
with a bit of difficulty before I realised I could have left it in place and
the board can just about get past it when the plug at the far end of the leads
feeding it is plugged out from the board. Are there any
recommendations for a replacement? If I remember correctly the
LEDs used in those days were not as bright as modern ones and a modern one
would end up being much brighter because of the higher voltage maybe?
Maybe it would be possible to tack blobs of solder onto what's left of the
leads on the original and use them to attach fine leads, digging out a small
amount of the LED casing around the leads if necessary?