NT wrote:
On Sep 25, 11:19 am, robgraham wrote:

I got two of these (why didn't I get a spare ?) out of a skip some
years back (~2000).

One of them works fine but the other is an unwilling starter - switch
on/flash/switch off/ wait for a count of 8/repeat about 6 times for
light to start.

I tried changing the tubes around - no change. I put the bad one up
in the new workshop when it was initially wind and water tight, and
decided yesterday that it was time to change them over. I came to the
conclusion it was easier to change the modules rather than the whole
light, and the fault follows the modules.

I've got a basic concept of how these things work ( I am an
electronics engineer), but does anyone know what the starting
circuitry is likely to be like so that I can try and trace down the
faulty component? The electronics is all discrete components

Thanks
Rob


There are several types of electronic ballset. Show us photos of the
pcb and there's a small chance we can help.

What tube size/power is it running?


NT
Also if it one designed for running two tubes, they quite often don't
like starting with only one fitted.

They do fail after many 1000's of hours running possibly due to
capacitor failure more than anything else - rarely worth repairing as
new ones are not that dear.

Bob