Hi - went on the same quest about a month ago re bayonet dark red 'proper' darkroom bulbs - finally found some at Fotoriesel, Kent St. Sydney. phone 0292998833. Hope you're in Sydney and can go to their shop and pick them up - they're not listed on their product list on their website and so far I've had no luck getting them to post me a couple to Tassie..even though they confirmed they had heaps of them...good luck!
Trish in Tassie