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Is it Worth Repairing a Toshiba ST-410 Tuner?

I recently purcahsed a Toshiba Am/FM tuner from the local Sally Ann for $19. It powered up and the cabinet is in great shape however, once I got it home and tried it out, there is nothing out of the left channel. Minus a schematic, I did the best I could with a visual inspection and ohmed out the capacitors, resistors etc. with no apparent problems and there is continuity from the female RCA's.

I know the tuner was the cheapest in the line behind the 420 and 910 etc. the question is, is it worth repairing at all? There is no hint as to the market value (e-bay) that would allow me to ballpark a maximum expenditure if I decide to outsource the repair.