Murphy Radio, Welwyn Garden City, Hertfordsh., England
618 Admiralty Pattern 100335
überarbeitet am 21.10.2010
The British maritime receiver was a successor of the legendary B40 in the end of the fifties:
the typical "lighthause dial" has been replaced by a circular dial, a mechanical
shutter is used to display only that part of the dial with the activated waveband.
Murphy did stay with the typical cabinet layout of the B40, but the complete
receiver is slightly smaller, it is 13 inches (33,3 cm) wide and 14 inches (36,5 cm) high.
With "only" a little bit less then 30 kg, the radio is much lighter then it's predecessor.
On the front panel, You find the tuning unit with the dials, a round knob just below acts as bandswitch,
a logging scale and the main tuning knob; a "heavy duty" lever is used to LOCK the tuning
mechanism. Similar to the B40, the set can be used on a fixed frequency, a crystal
can be fittet behind a screwed small metal cover. Just below You find the R.F. gain control.
The controls are still arranged in a bit a peculiar way, but operation seems
to me a bit more straightforward then as with the predecessor:
The Murphy A.P. 100335 / 618 receiver is a collectors item representing the development of British marine receivers, but it is still a useful radio to listen to the signals of the major international shortwave broadcasters. It is capable of receiving some amateur radio CW and single sideband transmissions. For Your first steps into shortwave listening, I would rather recommend a portable PLL synthesized shortwave receiver like a Sony SW-7600.
© Martin Bösch 10.7.2010