The Mullard model 515 was manufactured for C. & A. Odlin Ltd by Philips Electrical Industries of N.Z. Ltd in 1945.

Other radios based on the same chassis:

5-valve miniature mantle radio - The Mullard model 515 Meteor (or Mullardette)

The first midget radio from Mullard (well, from Philips as most Mullard radios were just rebadged with a different cabinet in some cases).  The Philips version has horizontal grill bars and was known as the model 540 Philette.

2 chassis versions, one which uses American octal valves and the other which uses English valves (540E version)

2 dial versions, MK1 has the low frequency at the left hand side of the dial while the MK2 has the opposite arrangement.

Technical Information

Valves (5):
540 : 6SA7, 6SK7, 6SQ7GT, 6V6GT, 6X5GT or
540E: ECH35, EF39, EBC33, 6V6GT, 6X5GT

Intermediate Frequency: 455kc/s

Frequency Bands: 1

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

1947 Philips model 540

1947 Philips model 540E

General Construction Notes for Philips Electrical Industries of N.Z. Ltd:

Model codes are explained on the Philips brand page.  Philips early-mid century were probably the Google of their time - they had branches in many countries and a global brand that everyone knew - and were apparently happy to let engineers come up with new ideas and implement them.  Construction is often overly complex but very well engineered - although repairs can also take a complex path.  They used time-in-motion studies to find the most cost effective way to asemble sets and sometimes this means repairs can be nightmarish (if you've ever worked on a V7A Theaterette this will be all too aparent).  U suffix model numbers are transformerless (hot chassis) sets and great care should be taken, or the sets avoided altogether.

Other documented models using this chassis (2 in total)

1945 Philips model 540 'Philette'