I think you can get this at Radio Shark quite easily.

"Paul" wrote in message
news:42d4a39d$0$5984$afc38c87@...
My Pioneer SX-V300 receiver forgets radio presets as soon as the power is
shut off. I found that C672 on the tuner control chip Vcc line is
completely open on my ESR meter. At 47,000uF 5v it should look like a
short. It is quite small ( 1/4" h by 1/2" dia) and looks more like a
battery than a 'lytic. Pioneer wants over $20 for a replacement part. I
looked at a few parts sites and found nothing quite like it. Is there a
cheaper source than Pioneer for this thing?

Thanks,
Paul