Mk1 octavka speedo and rev dash lights not working.

[Nagasaki77]

The lights on the dashboard used to flicker on and off every now and again but a few weeks ago they have fully died. I still have both needles illuminated though. What bulbs do I need to replace or is there a series of fuses I can check? Thanks 

[Akshayraj]

Sorry if this is a really late reply because of I’m new to the group.. I had similar issues as well turns out it was just fungus on the interior dimmer switch’s nodes.. either clean it or replace it and you’ll be all set up until the next fungal infestation 😅