The Philips BZ126A was manufactured by Philips Electrical Industries of N.Z. Ltd in 1952.
4-valve broadcast band mantle radio
Intermediate Frequency: 455 Kc/s
Frequency Bands: 1
Chassis Notes(most schematics can be clicked to download a full size version)
Full service information (Philips_BZ126A_Mullard_402-_4V_BC_AC_-_1952.pdf) here
Cathode-biased output valve version:
Back-biased output valve version: