8-valve Hi-Z broadcast band stereogram with automatic record changer
Fitted with either the Philips AG1025W (released approx 1965) or BSR UA15 (released 1963) record changer.
7-valve equivalent, the circuit uses two rectifier valves instead of one.
It is likely that this model was released in 1963*, and continued in production through to the end of 1965, when the physically identical F5Z67A (with its newer valve lineup) replaced it.
Identical electrically to the F4Z37A Concorde (although that model has a plan round tuning dial rather than the slide-rule dial).
* The year is a guess based on valve lineup and printed circuit board use and the code (F5Z37A)
Intermediate Frequency: 455kc/s
Frequency Bands: 1
Chassis Notes(most schematics can be clicked to download a full size version)
Service information (philips-f5z37a-celestialf5z38a-cornergramf6z37a-capricorn-stereograms.pdf) here
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.