Still digging through those photos from 1974. Actually found that we did break the rule of not bothering to photograph sparks. Here is a couple from West Footscray - a Tait and a Harris set. Modest, unadorned affairs.
A here is one for GlennofFootscray - I have long admired your blog. As a token of appreciation, here's a modest contribution to night tram photography from a bitterly cold week night in May 1974. The telltale lines show that the tram moved mid time lapse.
Certainly not much was happening that night!