The Murphy SGD618 was manufactured for Fisher & Paykel Ltd by Allied Industries Ltd (Fisher & Paykel) in 1961.

Other radios based on the same chassis:

6-valve dual-wave stereogram

Broadcast band version of this model is the SG610

Garrard Type A automatic record changer, released c.1959 - Murphy seems to have used this player for a few years from 1959 through until around 1961/62

Technical Information

Valves (6): ECH81, EBF89, ECC83, EL84, EL84, EZ80

Intermediate Frequency: 455kc/s

Frequency Bands: 2

Chassis Notes(most schematics can be clicked to download a full size version)

1961 Murphy SG619

1961 Murphy SG619

General Construction Notes for Allied Industries Ltd (Fisher & Paykel):

Murphy stereogram model prefix indicates radio bands - ie: SGA is Stereogram All-Wave, SGD is Stereogram Dual-Wave. SG means Stereo broadcast band radio only (stereo referring to the record player - radio was only mono. Dashes and spaces seem to be used in some places while not others - ie: SG1387 is the same as SG 13-87

Dating Murphy equipment is a little difficult due the codes not appearing to contain dating info.  Here is what can be seen from the models examined:

SGx61x (ie SG615, SGD618) radiograms seem to have run from 1959 through until 1961/62 and used Garrard Type A record changers (these were released approximately 1959)

The first digit or digits seems to reflect the number of active devices (ie: SG 14-32 has 14 transistors, SG615 has 6 valves)

Other documented models using this chassis (2 in total)

1961 Murphy SGD619 'Oberon'