08-10-2014, 10:49 AM
I can't find a schematic on the web so far.
Looks like a four valve job, might be an ECC85 in the front end judging from the radiomuseum pictures, might be worth checking what the discriminator/detector is, if it's germanium diodes then that should narrow the rest of the valve types down to probably EFxx types. If there's an electrolytic in the detector it should be a ratio detector, if that's the case then the IF valves might be all the same type and all under AGC control.
Lawrence.
Looks like a four valve job, might be an ECC85 in the front end judging from the radiomuseum pictures, might be worth checking what the discriminator/detector is, if it's germanium diodes then that should narrow the rest of the valve types down to probably EFxx types. If there's an electrolytic in the detector it should be a ratio detector, if that's the case then the IF valves might be all the same type and all under AGC control.
Lawrence.
