Spares or repairs, plug removed and part of as house clearance so unable to test.
Hornby Zero 1 Master Control Unit Digital Controller for OO Gauge Zero 1
Hornby Zero 1 Master Controller R950 and 1 Slave Controller R951
Hornby Zero 1 Master Control Unit – Vintage Model Railway Controller – Working
HORNBY ZERO 1 MASTER CONTROLLER R950 AND 3 SLAVE CONTROL UNITS R951
Hornby Zero 1 Master Controller R950 and 2 Slave Controller R951
Hornby Railways Vintage Zero 1 Master Control Unit R950
