PHILIPS MODEL 593 'POLYBAND' (1945)

The Philips model 593 was manufactured by Philips Electrical Industries of N.Z. Ltd in 1945.

One of the first models out of the blocks post-WWII.  5-valve 4-band radio.


BAY OF PLENTY TIMES, 18 SEPT 1945

Called the Polyband tuning set, which refered to its continuous coverage from 540kc up to 22.2Mc

Technical Information

Valves (5): ECH35, EF39, EBC33, EL33, 6X5GT

Intermediate Frequency: 455kc/s

Frequency Bands: 4

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

1945 Philips  model 593 'Polyband'

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.