[Arran]

I looked up the Electro brand battery eliminators, apparently the ones I have are the model "P" which has a 5Y3 tube in it, and the model "S" which dispensed with the tube and used a selenium rectifier. I got the first one in a lot of test equipment I was offered years ago, the second I got at a car swap meet maybe four or five years back. Anyhow the one you need to look for is the Electro model "F", as that has the twp volt filament supply, point in fact you could probably convert one of the 1.4 volt units to putting out 2 volts by replacing the copper oxide rectifier with silicon diodes, thanks to less forward drop, but that's an engineering job.
 As to why your radio is not working it could be that the local oscillator isn't running, which is probably due to defective capacitors, but could also be because of a faulty mixer-oscillator tube, I think a 1C6 in this case, or a bad grid cap solder joint, or the grid cap lead.
Regards
Arran