The Murphy A186 is a British AC mains table radio, introduced in 1951. Murphy described it as a deluxe “baffle” receiver: its cabinet design was intended to give good sound. It receives medium wave, long wave and short wave broadcasts.
The UK version has six valves: 6C9, 6F15 or 6F16, 6LD20, 6P25, 6M1 tuning indicator, and UU9 or EZ40 rectifier. It runs on 200–250 V AC.
There was also an A186 built in Dublin, with some differences in its valves and circuitry. Have any example checked before powering it up.
SERVICE MANUAL PREVIEW
The Trader service sheet for the Murphy A186, covering the Welwyn and Dublin versions and the A186R radiogram, is available to members. Here's a taste of what's inside.
These pictures are faded on purpose, just for this preview. Members get the complete service sheet, unfaded, to view and download.
The service sheet includes:
- The full circuit diagram
- Component values, with where to find each one on the chassis
- Valve analysis, with the voltages and currents
- Diagrams of the waveband switch units, with a table of switch positions
- Step by step circuit alignment
- Notes on the drive cord and the changes made during production
- Photos of the top and underneath of the chassis
