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[Music] well Ive printed out the circuit here to take a look at it and Ive highlighted some of the wiring on it just to make things a little bit easier this red is Ive highlighted the HT orange here highlighted the secondary HC used for the screens in the light blue Ive highlighted the AGC signal which well talk about later and then green the basic signal path through the circuit so lets start at the area its as good a place as any to start aerial connector here lets brought down to two transformers theres a gang switching arrangement through the whole device that allows you to select medium wave short wave and the phono input for the record player so you can see this switching arrangement here will actually select a different transformer here depending on the on the band thats chosen and l3 and l4 for the medium wave l1 l2 transformer is for the short wave and in the grid circuit of this particular valve we also have a couple of other tuned circuits which switched in as wel