> If you can't get it with a genuine GE Superadio 3, you have problems!
--- First of all - are you sure it is a GE Superadio 3? Or is it something else.
--- If it is a genuine GE Superadio 3, then is it possible you got one of the very first production runs about 12 years ago when the speaker leads were reversed and it severly limited sensitivity.
--- If it is a GE Superadio 1 or 2, I have documented a problem with the 1st RF transistor biasing. I am working on a fix, but don't have a lot of time to devote to it. Basically - the transistor is barely in the linear range. It ages at all, and the transistor is shut off. Replacing the transistor with a similar type helps, but the whole biasing scheme on that stage is whacked out - I need to do a complete redesign, then figure out how to implement it. I bet its fixed in the "3" - perhaps that would be the best starting place. (Someone got the time to trace this one down?)
--- If it is a GE Superadio 3, are you in a high interference reception area? Take the radio outside on batteries, if you get your 250 watter - then you need to sanitize your listening area of all interference (light dimmers, automatic night lights, flourescent lights all have to GO!)
--- If your listening area is clean, then you need to think about antennas. A 250 watter 53 miles away should be no issue unless your ground conductivity is terrible and / or you are around mountains. What is your location? A box loop antenna can be made that has sufficient Q to give you gain on your target station over the interfering frequency nearby. A good 10 kHz heterodyne filter would be a huge help in listenability! I have an article coming out shortly on how to make one from op amps.