The light does not work. Briefly tested and works in both directions - There is a flat spot in one position in reverse which I would put down to lack of use.
MECCANO HORNBY DUBLO Marshall II Power Control Unit / Transformer - Boxed
MECCANO HORNBY DUBLO A2 Power Control Unit / Transformer 12 Volt - Boxed
Hornby Dublo Marshall II Power Control Unit
Boxed Meccano Hornby Dublo A3 Power Control Unit / Transformer
Vintage Meccano Hornby Dublo A3 Power Control Unit / Transformer, Untested
MECCANO HORNBY DUBLO A3 Power Control Unit / Transformer 12 & 15 Volt - Boxed
