The Astor 5-valve broadcast model FEU is the evolution of the Astor 525. When Pye took over RCNZ they took over all the current models as well - and it appears that the Astor 525 was rebranded and redesigned (albeit only slightly) to suit Pye manufacturing. The FEU model code is in line with the Astor Australia model codes.
There are a few changes from the original design including the Pye made speaker and English I.F. cans. Visually, from the front, the only noticable difference is that the dial is reversed from the earlier 525, with the high end of the band on the left although the design and printing appears identical.
For more information, check the 525 page.
General Construction Notes for Radio Corporation of New Zealand Ltd: The first digit of the serial number typically indicates the year of manufacture of RCNZ chassis' (although not the decade - that requires a little knowledge of the valves, construction, etc). Sets from around 1934 onwards were often (but not always) constructed in a distinctive pressed 'baking pan' style chassis, seemingly unique to RCNZ.
|1958||Astor model 525|
|1959||Astor FEU - this set|