MULLARD MODEL 542 (CIRCA 1940)

The Mullard model 542 was manufactured for C. & A. Odlin Ltd by Philips Electrical Industries of N.Z. Ltd in about 1940.

Other radios based on the same chassis:

5-valve + magic eye, all wave with local setting on broadcast band. Same as Philips 157

Technical Information

Valves (5 + magic eye): ECH35 (or CCH35 ), EF39, EBC33, EL33 (or CL33 or EBL31 ), AZ31 (or AZ1 ) and 6U5 Magic Eye

Intermediate Frequency: 454kc/s

Frequency Bands: 3

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

Philips NZ model 157 and 158 and Mullard 542 Schematic

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 (3 in total)

YEARMODEL NAME
1940 Philips model 157
1940 Philips model 158