Meccano Power Control Unit A3. Untested.

Vintage Meccano Power Control Unit A2 Untested Needs A Plug Ref KK34

Vintage H&M Safety Minor Power Control Unit for Triang Railways

VINTAGE MECCANO A3 POWER CONTROL UNIT HORNBY DUBLO MODEL TRAINS UNTESTED

MECCANO POWER CONTROL UNIT A3 BOXED UNTESTED

Vintage Hornby Dublo Power Control Unit Type A3 Untested + box and instructions

MECCANO LTD POWER CONTROL UNIT TYPE A3 FOR MODEL RAILWAY # UNTESTED #

H.M. RELCO controller. Boxed.