ALBA model 70 Radiogram problems.
Today I've been working on the Alba 70 I bought last week re-capped it a couple were missing their paper labels and no one seems to have a schematic for it so anyway I now have it working beautifully on both long and medium Bit not a sausage on Gram. The wavechange switch simply connects two contacts for gram that's fine I'm a bit perplexed by the gram socket I have one side goes through a resistor to WC switch then on to the volume pot the other side is connected to two sockets on the back marked E presumably earth ( why two ?) Which in turn connects to the bottom pin of one valve a VMS4B I've put a new cap here possibly the wrong value I've used 47nf old cap had lost label the other end of this earth and gram socket arrangement goes through another cap a 0.1uf pretty sure that caps correct to a connection with the centre pin of the same valve and also though a resistor. Any help greatly appreciated. Please see pics .
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