In message , Moonraker
writes
Model number NN-V659 has gone kaput. The instructions say it must only
be replaced by a qualified engineer. Surely it cannot be that
difficult, is it just a safety matter? Any tips, also source of spare
lamp and type/rating.

NN-V659 bulb brings up a number of hits on google

e.g.
Http://www.espares.co.uk/part/microw...p/1095/308/0/4
03765/510048/universal-e17-15-watt-mic.html

I expect it is trivial to do if you can tie your own shoelaces

UNplug and leave for at least 24 hours and then still watch out for a
lethal voltage on the big capacitor if the bleed resistor has gone open
circuit



I don't want to take it apart to find the details then re-assemble only
to take apart a little later to replace it.

--
geoff