The first ever model of Courtenay receiver, manufactured by W. Marks Ltd (who would become Radio Corporation of NZ in 1932) in Courtenay Place Wellington. Marketed for £10/10/- (and an additional 32/6 for the speaker) by Stewart Hardware who were the original owners of the Courtenay brand some three years before it was taken over by Turnbull & Jones Ltd.
Originally it appears (from advertising in March/April 1930) that the receiver was just called the 'Courtenay' or the 'Courtenay Local Receiver', however by November advertising shows there were two models. The 3-valve model was now known as the Courtenay Jr. and a new model was introduced, the Courtenay Snr, with several variants.
By the following year the 3-valve offering would be renamed again, to the model 6 (one of around five different models available by the end of 1931) - although it is not known if this was a renaming of this model, or a new model (possibly (and maybe optionally) in a cathedral cabinet with its own internal speaker).
EVENING POST, 6th MARCH 1930
Intermediate Frequency: TRF
Chassis Notes(most schematics can be clicked to download a full size version)
These schematics were drawn by NZVRS member Bob Hatton in 1994, after he did a great deal of research into the model. He concluded that, based on existing evidence and the design of the components, that 12A's were the likely valve used. Unfortunately nothing exists from the company regarding this model, likely thrown out when Pye took over Radio Corp in 1959 as they were said to have had a huge clear-out of old files and paperwork.
It should be noted that the 100V HT is present at one of the speaker terminals, and high voltage will be present on both terminals when a speaker is connected.
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