Re: Radio identity please.
Hello,
As promised here are the circuits for typical suitcase portables.
The first two pictures are from "50 Tested Wireless Circuits" and illustrate the most common form of circuit.
The last two are from "Wireless World" from 1928.
The third picture shows two circuits the first is similar to the one from first design but uses resistance-capacity coupling for the last stage. You might want to use resistance-capacity coupling for your final stages if you don't have any LF transformers. The second shows a circuit with untuned HF transformer coupling for the first two stages although this is complex and not commonly used.
The final picture shows the percentages of different circuit features of the portable sets for 1928.
Yours, Richard
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