The Murphy model P88 was manufactured for Fisher & Paykel Ltd by Allied Industries Ltd (Fisher & Paykel) in about 1968.

8-transistor portable radio

Technical Information

Valves (8 transistors, 2 diodes): 2N1637, 2N1526, 1N60 Diode, 2N1524, 2N1524, AA112 Diode, 2N408, AC117, ( AC117 x 2 matched output pair)

Intermediate Frequency: 455kc/s

Frequency Bands: 1

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

Note, this set has no audio output transformer and instead uses a 30 ohm centre tapped voice coil which most likely not be replacable with any modern speaker so treat this with care.

Service information (Murphy_P88_Super_8_transistor_radio_service_information.pdf) here

1968 Murphy P88

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)