Hi WA6MOK, thanks for the info.
I was going to suggest in jest that they could be called a "Maxi-MELF"... seems like I was right. RS in this country don't have them as far as I can tell (they're our preferred distributor) - I'll need to have a good look at Farnell and then Digikey, Mouser etc.
Hi Nigel,
The original resistors have run very hot - the enamel is cracking and at least one of them has drifted out of spec. At the moment I don't know if this is due to a fault condition, but I have a suspicion that they might just be a little under-rated for the job. If that's the case then there's obviously a case for replacing them with something a little larger - on the other hand, I generally like to give the designer the benefit of the doubt that they knew what they where doing, and fit the original parts - if nothing else, it makes for a neater repair.
The irritation is that they're on a soldered-in daughterboard and I'd like to replace the overheated Rs before I solder the board back in and move on to diagnosing the reported faults - otherwise, not only do I not know if the fault is due to out-of-spec resistors, but I'll also have to remove the board again in order to replace them before the job is complete.
All in I think I may just find some larger through-hole parts if the maxi-melfs aren't readily available.
Thanks guys.