Mystic 155

• alternative name: Bloch & Gerber

5 valve AC/DC powered superhet.

This model is a combined reading lamp and midget radio. The lamp used is a standard 240V 75W type and acts as a voltage dropping resistor for the valve heaters.

The "Weldon" Mystic 

The new “Weldon Mystic” Radio for A.C. or D.C. use, manufactured by Messrs. Bloch and Gerber, offers something very novel, and especially useful. Essentially it is a combination radio set and reading lamp. Any Universal receiver calls for a resistor in series with the filament circuit to allow direct connection to either type of mains. Instead of wasting power in a conventional resistor, Weldon have replaced it in the case of the “mystic” with a reading lamp every bit as effective electrically, and making good use of the power, which otherwise would be wasted.
The receiver itself is a very efficient little five-valve superheterodyne, capable of excellent   interstate and local reception. It is suitable for either A.C. or D.C. areas, and makes an ideal companion for the bedside, the fireside, or writing bureau.
The Wireless Weekly, August 28, 1936, Page 69.

In questo link sono elencati 110 modelli, di cui 33 con immagini e 41 con schemi.
Elenco delle radio e altri apparecchi della Weldon (brand), Weldon Electric Supply Co. and Bloch & Gerber Ltd.; Sydney, NSW